Solano County, California

County in California, United States

County in California, United States

Solano County

County

Solano County

Images, from top down, left to right: The Solano County Government Center in downtown Fairfield, Benicia Capitol State Historic Park, Vacaville Hills

Flag

Seal

Interactive map of Solano County

Location in the state of California

Coordinates: 38°16′N 121°56′W﻿ / ﻿38.27°N 121.94°W﻿ / 38.27; -121.94
Country| United States
State| California
Region| San Francisco Bay Area
Incorporated| February 18, 1850[1]
Named after| Chief Solano of the Suisun people
County seat| Fairfield
Largest city| Vallejo (population)
Fairfield (area)
Government

• Type| Council–Administrator
• Body|

Board of Supervisors[2]

* Cassandra James
* Monica Brown
* Wanda Williams
* John Vasquez
* Mitch Mashburn

• Chair| Mitch Mashburn
• Vice Chair| Monica Brown
• County Administrator[3]| William F. Emlen
Area

• Total

| 906 sq mi (2,350 km2)
• Land| 822 sq mi (2,130 km2)
• Water| 84 sq mi (220 km2)
Highest elevation

[4]

| 2,822 ft (860 m)
Population

(2020)

• Total

| 453,491
• Density| 552/sq mi (213/km2)
GDP

[5]

• Total| $35.408 billion (2022)
Time zone| UTC−8 (Pacific Time Zone)
• Summer (DST)| UTC−7 (Pacific Daylight Time)
Area code| 707
FIPS code| 06-095
GNIS feature ID| 277312
Congressional districts| 4th, 7th, 8th
Website| www.solanocounty.com

Solano County (/səˈlɑːnoʊ/ ⓘ) is a county located in the U.S. state of California. As of the 2020 census, its population was 453,491.[6] The county seat is Fairfield.[7]

Solano County comprises the Vallejo–Fairfield metropolitan statistical area, which is also included in the San Jose–San Francisco–Oakland, combined statistical area.[8] Solano County is the northeastern county in the nine-county San Francisco Bay Area region.

A portion of the South Campus at the University of California, Davis, is in Solano County.

## History

[edit]

Solano County was one of the original counties of California, created in 1850 at the time of statehood.

At the request of General Mariano Guadalupe Vallejo, the county was named for Chief Solano of the Suisun people, a Native American tribe of the region and Vallejo's close ally. Chief Solano at one time led the tribes between the Petaluma River and the Sacramento River. The chief was also called Sem-Yeto, which signifies "brave or fierce hand". The chief was given the Spanish name Francisco Solano during baptism at the Catholic Mission, and is named after the Spanish Franciscan missionary Father Francisco Solano. "Solano" is a common surname in the north of Spain, especially in Navarra, Zaragoza, and La Rioja.

Travis Air Force Base is located just east of Fairfield. Between 2017 and 2023, California Forever purchased over 50,000 acres of land in the county for an estimated $900 million to develop a new city.[9][10]

## Region

[edit]

Solano County is the easternmost county of the North Bay.[8] As such, it is sometimes reported by news agencies as being in the East Bay.[11][12][13] Additionally, a portion of the county extends into the Sacramento Valley, geographically.

## Geography

[edit]

According to the U.S. Census Bureau, the county has a total area of 906 square miles (2,350 km2), of which 84 square miles (220 km2), comprising 9.3%, are covered by water.[14]

Solano County had several cinnabar mines that were worked in the first half of the 20th century, including the Hastings Mine and St. John's Mine.[15]

### Adjacent counties

[edit]

* Contra Costa County, California \- south
* Sonoma County, California \- west
* Napa County, California \- west
* Yolo County, California \- north
* Sacramento County, California \- east

### National protected area

[edit]

* San Pablo Bay National Wildlife Refuge (part)

### Flora and fauna

[edit]

Solano County has a number of rare and endangered species, including the delta green ground beetle,[16] the wildflower Lasthenia conjugens, commonly known as Contra Costa goldfields,[17] and the annual plant Legenere limosa or false Venus' looking glass.[18]

## Transportation

[edit]

See also: Rail transportation in Solano County, California

### Major highways

[edit]

Highway 37 Bridge over Napa River in Vallejo A train sits behind a stop sign at an intersection in Cordelia, California

* I-80
* I-505
* I-680
* I-780
* SR 12
* SR 29
* SR 37
* SR 84
* SR 113

### Public transportation

[edit]

Solano County is served by several transit agencies:

* SolTrans, formed as a merger between these two existing transit agencies:
* Vallejo Transit, which also formerly operated the Baylink Ferry to San Francisco
* Benicia Breeze
* San Francisco Bay Ferry, with a terminal in Vallejo
* Fairfield and Suisun Transit
* Vacaville City Coach
* Rio Vista Delta Breeze

Each agency interconnects with the others, enabling transit trips throughout the county. Service also connects with BART stations in Contra Costa County. Transit links are provided to Napa, Yolo and Sacramento counties as well.

Greyhound and Amtrak provide long-distance intercity service.

### Airports

[edit]

General aviation airports in Solano County that are open to the public are the Nut Tree Airport and Rio Vista Municipal Airport.

## Demographics

[edit]

Historical population Census| Pop.| Note| %±

|
|
|

1850| 580| | —
1860| 7,169| | 1,136.0%
1870| 16,871| | 135.3%
1880| 18,475| | 9.5%
1890| 20,946| | 13.4%
1900| 24,143| | 15.3%
1910| 27,559| | 14.1%
1920| 40,602| | 47.3%
1930| 40,834| | 0.6%
1940| 49,118| | 20.3%
1950| 104,833| | 113.4%
1960| 134,597| | 28.4%
1970| 169,941| | 26.3%
1980| 235,203| | 38.4%
1990| 340,421| | 44.7%
2000| 394,542| | 15.9%
2010| 413,344| | 4.8%
2020| 453,491| | 9.7%
2024 (est.)| 455,101| [19]| 0.4%
U.S. Decennial Census[20]
1790–1960[21] 1900–1990[22]
1990–2000[23] 2010[24] 2020[25]

### 2020 census

[edit]

Solano County, California – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race. Race / Ethnicity (NH = Non-Hispanic) | Pop 1980[26] | Pop 1990[27] | Pop 2000[28] | Pop 2010[24] | Pop 2020[25] | % 1980  | % 1990  | % 2000  | % 2010  | % 2020

|
|
|
|
|
|
|
|
|
|

White alone (NH)  | 163,371  | 207,476  | 194,282  | 168,628  | 155,125  | 69.46%  | 60.95%  | 49.24%  | 40.80%  | 34.21%
Black or African American alone (NH)  | 27,372  | 43,858  | 57,597  | 58,743  | 60,051  | 11.64%  | 12.88%  | 14.60%  | 14.21%  | 13.24%
Native American or Alaska Native alone (NH)  | 1,981  | 2,469  | 2,194  | 1,864  | 1,624  | 0.84%  | 0.73%  | 0.56%  | 0.45%  | 0.36%
Asian alone (NH)  | 17,377  | 40,494  | 49,399  | 59,027  | 70,953  | 7.39%  | 11.90%  | 12.52%  | 14.28%  | 15.65%
Native Hawaiian or Pacific Islander alone (NH)  | x [29] | x [30] | 2,859  | 3,243  | 3,775  | x  | x  | 0.72%  | 0.78%  | 0.83%
Other race alone (NH)  | 329  | 607  | 955  | 1,463  | 2,988  | 0.56%  | 0.18%  | 0.24%  | 0.35%  | 0.66%
Mixed race or Multiracial (NH)  | x [31] | x [32] | 17,658  | 21,020  | 30,820  | x  | x  | 4.48%  | 5.09%  | 6.80%
Hispanic or Latino (any race)  | 24,773  | 45,517  | 69,598  | 99,356  | 128,155  | 10.53%  | 13.37%  | 17.64%  | 24.04%  | 28.26%
Total | 235,203 | 340,421 | 394,542 | 413,344 | 453,491  | 100.00% | 100.00% | 100.00% | 100.00% | 100.00%

### 2014

[edit]

A 2014 analysis by The Atlantic found Solano County to be the 5th most racially diverse county in the United States, behind Aleutians West Census Area and Aleutians East Borough in Alaska, Queens County in New York, and Alameda County in California.[33]

### 2011

[edit]

Population, race, and income

Total population[34] | 411,620
White[34] | 214,436  | 52.1%
Black or African American[34] | 60,130  | 14.6%
American Indian or Alaska Native[34] | 2,427  | 0.6%
Asian[34] | 59,143  | 14.4%
Native Hawaiian or other Pacific Islander[34] | 3,390  | 0.8%
Some other race[34] | 43,064  | 10.5%
Two or more races[34] | 29,030  | 7.1%
Hispanic or Latino (of any race)[35] | 97,268  | 23.6%
Per capita income[36] | $29,367
Median household income[37] | $69,914
Median family income[38] | $79,316
Ethnic origins in Solano County

#### Places by population, race, and income

[edit]

Places by population and race

Place  | Type[39] | Population[34] | White[34] | Other[34]
[note 1] | Asian[34] | Black or African
American[34] | Native American[34]
[note 2] | Hispanic or Latino
(of any race)[35]
Allendale | CDP | 1,968 | 86.1% | 10.7% | 3.2% | 0.0% | 0.0% | 14.7%
Benicia | City | 26,981 | 75.6% | 10.4% | 9.3% | 3.1% | 1.7% | 12.2%
Dixon | City | 18,141 | 74.9% | 17.0% | 3.8% | 3.0% | 1.3% | 39.4%
Elmira | CDP | 251 | 97.2% | 2.8% | 0.0% | 0.0% | 0.0% | 2.8%
Fairfield | City | 104,404 | 47.1% | 19.4% | 15.5% | 16.6% | 1.5% | 25.7%
Green Valley | CDP | 1,719 | 85.7% | 8.7% | 2.4% | 3.1% | 0.0% | 8.0%
Hartley | CDP | 2,229 | 85.3% | 4.4% | 1.7% | 7.3% | 1.3% | 12.7%
Rio Vista | City | 7,088 | 76.5% | 10.0% | 4.0% | 7.9% | 1.5% | 14.9%
Suisun City | City | 27,900 | 34.4% | 24.9% | 19.9% | 19.7% | 1.1% | 25.6%
Vacaville | City | 92,217 | 64.8% | 17.0% | 5.9% | 11.1% | 1.2% | 21.7%
Vallejo | City | 116,021 | 36.2% | 17.2% | 23.9% | 21.0% | 1.6% | 23.3%
Places by population and income

Place  | Type[39] | Population[40] | Per capita income[36] | Median household income[37] | Median family income[38]
Allendale | CDP | 1,968 | $41,928 | $112,837 | $119,063
Benicia | City | 26,981 | $41,854 | $90,338 | $102,571
Dixon | City | 18,141 | $27,624 | $72,626 | $76,038
Elmira | CDP | 251 | $22,069 | $73,438 | $85,650
Fairfield | City | 104,404 | $26,785 | $68,037 | $75,717
Green Valley (Solano County) | CDP | 1,719 | $67,828 | $125,669 | $145,781
Hartley | CDP | 2,229 | $41,041 | $87,841 | $106,786
Rio Vista | City | 7,088 | $34,332 | $58,701 | $68,156
Suisun City | City | 27,900 | $26,148 | $71,411 | $76,286
Vacaville | City | 92,217 | $29,687 | $73,302 | $85,790
Vallejo | City | 116,021 | $27,375 | $62,325 | $72,717

### 2010

[edit]

The 2010 United States census reported that Solano County had a population of 413,344. The racial makeup of Solano County was 210,751 (51.0%) White, 60,750 (14.7%) African American, 3,212 (0.8%) Native American, 60,473 (14.6%) Asian, 3,564 (0.9%) Pacific Islander, 43,236 (10.5%) from other races, and 31,358 (7.6%) from two or more races. Hispanic or Latino of any race were 99,356 persons (24.0%).[41] At 52,641 Filipinos in the county making up 12% of the population, Solano County has the largest percentage Filipino population of any county in the United States.[citation needed]

Population racial makeup reported at 2010 United States census

County

Total
population

White

African
American

Native
American

Asian

Pacific
Islander

Other
races

Two or
more races

Hispanic
or Latino
(of any race)

Solano County | 413,344 | 210,751 | 60,750 | 3,212 | 60,473 | 3,564 | 43,236 | 31,358 | 99,356

Incorporated
cities and towns

Total
population

White

African
American

Native
American

Asian

Pacific
Islander

Other
races

Two or
more races

Hispanic
or Latino
(of any race)

Benicia | 26,997 | 19,568 | 1,510 | 135 | 2,989 | 102 | 895 | 1,798 | 3,248
Dixon | 18,351 | 13,023 | 562 | 184 | 671 | 58 | 2,838 | 1,015 | 7,426
Fairfield | 105,321 | 48,407 | 16,586 | 869 | 15,700 | 1,149 | 13,301 | 9,309 | 28,789
Rio Vista | 7,360 | 6,003 | 372 | 53 | 359 | 15 | 288 | 270 | 914
Suisun City | 28,111 | 10,805 | 5,713 | 196 | 5,348 | 340 | 2,898 | 2,811 | 6,753
Vacaville | 92,428 | 61,301 | 9,510 | 846 | 5,606 | 532 | 8,136 | 6,497 | 21,121
Vallejo | 115,942 | 38,064 | 25,572 | 757 | 28,895 | 1,239 | 12,759 | 8,656 | 26,165

Census-designated
places

Total
population

White

African
American

Native
American

Asian

Pacific
Islander

Other
races

Two or
more races

Hispanic
or Latino
(of any race)

Allendale | 1,506 | 1,239 | 49 | 22 | 42 | 2 | 79 | 73 | 235
Elmira | 188 | 150 | 1 | 10 | 2 | 0 | 17 | 8 | 47
Green Valley | 1,625 | 1,412 | 41 | 6 | 82 | 9 | 20 | 55 | 121
Hartley | 2,510 | 1,956 | 70 | 24 | 70 | 16 | 248 | 126 | 510

Other
unincorporated areas

Total
population

White

African
American

Native
American

Asian

Pacific
Islander

Other
races

Two or
more races

Hispanic
or Latino
(of any race)

All others not CDPs (combined)  | 13,005 | 8,823 | 764 | 110 | 709 | 102 | 1,757 | 740 | 4,027

### 2000

[edit]

At the 2000 census there were 394,542 people, 130,403 households, and 97,411 families in the county. The population density was 476 inhabitants per square mile (184/km2). There were 134,513 housing units at an average density of 162 per square mile (63/km2). The racial makeup of the county was 56.4% White, 14.9% Black or African American, 0.8% Native American, 12.8% Asian, 0.8% Pacific Islander, 8.0% from other races, and 6.4% from two or more races. 17.64% of the population were Hispanic or Latino of any race. 8.5% were of German, 6.4% Irish and 6.0% English ancestry according to Census 2000. 75.7% spoke English, 12.1% Spanish and 6.6% Tagalog as their first language.[42] Of the 130,403 households 39.9% had children under the age of 18 living with them, 55.7% were married couples living together, 13.8% had a female householder with no husband present, and 25.3% were non-families. 19.6% of households were one person and 6.5% were one person aged 65 or older. The average household size was 2.90 and the average family size was 3.33.

The age distribution was 28.3% under the age of 18, 9.2% from 18 to 24, 31.3% from 25 to 44, 21.7% from 45 to 64, and 9.5% 65 or older. The median age was 34 years. For every 100 females there were 101.5 males. For every 100 females age 18 and over, there were 100.2 males.

The median household income was $54,099 and the median family income was $60,597. Males had a median income of $41,787 versus $31,916 for females. The per capita income for the county was $21,731. About 6.1% of families and 8.3% of the population were below the poverty line, including 10.3% of those under age 18 and 6.3% of those age 65 or over.

## Crime

[edit]

The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense (2011).

Population and crime rates

Population[34] | 411,620
Violent crime[43] | 2,064 | 5.01
Homicide[43] | 20 | 0.05
Forcible rape[43] | 112 | 0.27
Robbery[43] | 810 | 1.97
Aggravated assault[43] | 1,122 | 2.73
Property crime[43] | 8,460 | 20.55
Burglary[43] | 4,168 | 10.13
Larceny-theft[43][note 3] | 7,018 | 17.05
Motor vehicle theft[43] | 2,084 | 5.06
Arson[43] | 116 | 0.28

### Cities by population and crime rates

[edit]

Cities by population and crime rates

City  | Population[44] | Violent crimes[44] | Violent crime rate
per 1,000 persons  | Property crimes[44] | Property crime rate
per 1,000 persons
Benicia | 27,459 | 37 | 1.35 | 390 | 14.20
Dixon | 18,708 | 53 | 2.83 | 315 | 16.84
Fairfield | 107,110 | 454 | 4.24 | 3,317 | 30.97
Rio Vista | 7,485 | 39 | 5.21 | 145 | 19.37
Suisun City | 28,593 | 57 | 1.99 | 558 | 19.52
Vacaville | 93,951 | 246 | 2.62 | 2,031 | 21.62
Vallejo | 117,912 | 878 | 7.45 | 5,844 | 49.56

## Government and politics

[edit]

### Government

[edit]

Main article: Government of Solano County, California

The Government of Solano County is defined and authorized under the California Constitution and law as a general law county. The County government provides countywide services such as elections and voter registration, law enforcement, jails, vital records, property records, tax collection, public health, and social services. In addition the County serves as the local government for all unincorporated areas.

The County government is composed of the elected five-member Board of Supervisors, several other elected offices including the Sheriff-Coroner, District Attorney, Assessor/Recorder, Auditor-Controller, and Treasurer/Tax Collector/County Clerk, and numerous county departments and entities under the supervision of the County Administrator. As of March 2023, the members of the Solano County Board of Supervisors were:

* Cassandra James, District 1
* Monica Brown, District 2, Vice Chair
* Wanda Williams, District 3
* John Vasquez, District 4
* Mitch Mashburn, District 5, Chair

### Politics

[edit]

#### Voter registration statistics

[edit]

Population and registered voters

Total population[34] | 411,620
Registered voters[45][note 4] | 210,453  | 51.1%
Democratic[45] | 102,177  | 48.6%
Republican[45] | 52,633  | 25.0%
Democratic–Republican spread[45] | +49,544 | +23.6%
Independent[45] | 5,940  | 2.8%
Green[45] | 878  | 0.4%
Libertarian[45] | 1,123  | 0.5%
Peace and Freedom[45] | 539  | 0.3%
Americans Elect[45] | 12  | 0.0%
Other[45] | 905  | 0.4%
No party preference[45] | 46,246  | 22.0%
Cities by population and voter registration

City  | Population[34] | Registered voters[45]
[note 4] | Democratic[45] | Republican[45] | D–R spread[45] | Other[45] | No party preference[45]
Benicia | 26,981 | 68.1% | 47.2% | 25.3% | +21.9% | 8.4% | 22.1%
Dixon | 18,141 | 50.7% | 38.8% | 35.4% | +3.4% | 7.3% | 21.4%
Fairfield | 104,404 | 48.1% | 48.7% | 24.4% | +24.3% | 6.8% | 22.7%
Rio Vista | 7,088 | 72.6% | 42.7% | 33.9% | +8.8% | 9.0% | 18.2%
Suisun City | 27,900 | 49.1% | 52.4% | 20.2% | +32.2% | 7.0% | 23.2%
Vacaville | 92,217 | 50.1% | 39.6% | 33.2% | +6.4% | 8.5% | 22.1%
Vallejo | 116,021 | 48.8% | 59.9% | 14.5% | +45.4% | 6.1% | 21.8%

#### Overview

[edit]

Solano County courthouse tower in parking lot

Solano County has been a Democratic stronghold in presidential and congressional elections, with Californians Richard Nixon (in 1972) and Ronald Reagan (in 1980 and 1984) being the only Republicans to win the county since 1928. However, the northern area of Solano County including Vacaville and Dixon have begun shifting right as evidenced by the 2022 midterms, voters in Congressional District 4 favoring the Republican candidate 50.3% to 49.7%.[46]

United States presidential election results for Solano County, California[47][note 5] Year  | Republican | Democratic | Third party(ies)

|
|
|

No.  | % | No.  | % | No.  | %
2024 | 70,345  | 36.91%  | 113,997  | 59.82% | 6,231  | 3.27%
2020 | 69,306  | 33.51%  | 131,639  | 63.65% | 5,886  | 2.85%
2016 | 51,920  | 30.88%  | 102,360  | 60.87% | 13,870  | 8.25%
2012 | 52,092  | 34.08%  | 96,783  | 63.32% | 3,965  | 2.59%
2008 | 56,035  | 34.68%  | 102,095  | 63.18% | 3,458  | 2.14%
2004 | 62,301  | 41.86%  | 85,096  | 57.17% | 1,440  | 0.97%
2000 | 51,604  | 39.17%  | 75,116  | 57.02% | 5,015  | 3.81%
1996 | 40,742  | 34.74%  | 64,644  | 55.12% | 11,893  | 10.14%
1992 | 38,883  | 29.43%  | 64,320  | 48.69% | 28,908  | 21.88%
1988 | 50,314  | 47.43%  | 54,344  | 51.23% | 1,430  | 1.35%
1984 | 51,678  | 54.51% | 41,982  | 44.29%  | 1,138  | 1.20%
1980 | 40,919  | 50.72% | 30,952  | 38.37%  | 8,805  | 10.91%
1976 | 26,136  | 42.40%  | 33,682  | 54.64% | 1,826  | 2.96%
1972 | 31,314  | 54.02% | 24,766  | 42.73%  | 1,885  | 3.25%
1968 | 17,683  | 34.71%  | 27,271  | 53.52% | 5,998  | 11.77%
1964 | 15,263  | 30.38%  | 34,930  | 69.53% | 47  | 0.09%
1960 | 18,751  | 40.88%  | 26,977  | 58.81% | 141  | 0.31%
1956 | 17,865  | 41.68%  | 24,903  | 58.10% | 95  | 0.22%
1952 | 19,369  | 42.37%  | 26,130  | 57.16% | 216  | 0.47%
1948 | 12,345  | 33.71%  | 23,257  | 63.50% | 1,022  | 2.79%
1944 | 10,361  | 29.77%  | 24,335  | 69.93% | 105  | 0.30%
1940 | 6,081  | 28.51%  | 15,054  | 70.58% | 193  | 0.90%
1936 | 3,603  | 20.89%  | 13,459  | 78.05% | 182  | 1.06%
1932 | 4,382  | 30.30%  | 9,712  | 67.16% | 367  | 2.54%
1928 | 7,061  | 52.32% | 6,278  | 46.51%  | 158  | 1.17%
1924 | 4,782  | 48.00% | 957  | 9.61%  | 4,223  | 42.39%
1920 | 7,102  | 64.77% | 2,954  | 26.94%  | 909  | 8.29%
1916 | 3,536  | 36.35%  | 5,678  | 58.37% | 514  | 5.28%
1912 | 40  | 0.50%  | 3,650  | 45.66% | 4,303  | 53.83%
1908 | 3,115  | 54.72% | 2,033  | 35.71%  | 545  | 9.57%
1904 | 3,176  | 61.37% | 1,555  | 30.05%  | 444  | 8.58%
1900 | 3,114  | 55.36% | 2,262  | 40.21%  | 249  | 4.43%
1896 | 2,702  | 53.19% | 2,284  | 44.96%  | 94  | 1.85%
1892 | 2,403  | 49.21% | 2,174  | 44.52%  | 306  | 6.27%
1888 | 2,231  | 49.67% | 2,158  | 48.04%  | 103  | 2.29%
1884 | 2,382  | 53.61% | 1,977  | 44.50%  | 84  | 1.89%
1880 | 1,963  | 49.80% | 1,959  | 49.70%  | 20  | 0.51%

Solano County is split between California's 4th, 7th and 8th congressional districts, represented by Mike Thompson (D–St. Helena), Doris Matsui (D–Sacramento) and John Garamendi (D–Walnut Grove) respectively.[48]

In the California State Assembly, Solano County is split between the 4th Assembly district, represented by Democrat Cecilia Aguiar-Curry, and the 11th Assembly district, represented by Democrat Lori Wilson. In the California State Senate, it is in the 3rd senatorial district, represented by Democrat Christopher Cabaldon.[49]

On November 4, 2008, Solano County voted 55.82% in favor of Proposition 8, which amended the California Constitution to ban same-sex marriages. It was the only Bay Area county to approve the initiative.[50] In the 2008 presidential election that day, Barack Obama carried the county by a 28.5% margin over John McCain, a larger margin than statewide (24%).[51]

According to the California Secretary of State, as of February 10, 2019, Solano County has 236,028 registered voters. Of those, 106,452 (45.1%) are registered Democrats, 50,006 (21.2%) are registered Republicans, and 66,558 (28.2%) have declined to state a political party.[52] Democrats hold voter-registration advantages in all incorporated cities and towns in Solano County. However, Republicans lead in registration in the unincorporated communities of the county (40%-35%), making Solano the only county in the Bay Area where Republicans out-number Democrats in unincorporated communities. The Democrats' largest registration advantage in Solano is in the city of Vallejo, wherein there are only 8,242 Republicans (14.6%) out of 56,313 total voters compared to 33,753 Democrats (59.9%) and 12,157 voters who have declined to state a political party (21.6%).

## Communities

[edit]

### Cities

[edit]

* Benicia
* Dixon
* Fairfield (county seat)
* Rio Vista
* Suisun City
* Vacaville
* Vallejo

* People line up at the gate to the Solano County Fair in Vallejo, California

* A building on the Solano County Fairgrounds

### Census-designated places

[edit]

* Allendale
* Elmira
* Green Valley
* Hartley

### Other unincorporated communities

[edit]

* Bahia
* Batavia
* Birds Landing
* Bucktown
* Collinsville
* Cordelia
* Denverton
* Maine Prairie
* Mankas Corner
* Rockville
* Scandia

### Population ranking

[edit]

The population ranking of the following table is based on the 2020 census of Solano County.[53]

† county seat

Rank  | Settlement  | Municipal type  | Population (2020 census)

|
|
|

1  | Vallejo | City  | 126,090
2  | † Fairfield | City  | 119,881
3  | Vacaville | City  | 102,386
4  | Suisun City | City  | 29,518
5  | Benicia | City  | 27,131
6  | Dixon | City  | 18,988
7  | Rio Vista | City  | 10,005
8  | Hartley | CDP  | 2,430
9  | Green Valley | CDP  | 1,654
10  | Allendale | CDP  | 1,651
11  | Elmira | CDP  | 193

## Miscellania

[edit]

This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (July 2018) (Learn how and when to remove this message)

|

* In 1985 Humphrey the humpback whale strayed off his migration route and ended up in Shag Slough north of Rio Vista. Rescuers from the Marine Mammal Center and other volunteers dismantled a county bridge before being able to turn him around in the narrow slough.

## See also

[edit]

* San Francisco Bay Area portal

* 1892 Vacaville–Winters earthquakes
* List of school districts in Solano County, California
* National Register of Historic Places listings in Solano County, California
* Solano County Library
* Tolenas Springs

## Explanatory notes

[edit]

1. ^ Other = Some other race + Two or more races
2. ^ Native American = Native Hawaiian or other Pacific Islander + American Indian or Alaska Native
3. ^ Only larceny-theft cases involving property over $400 in value are reported as property crimes.
4. ^ a b Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.
5. ^ This total comprised 3,353 votes for Progressive Theodore Roosevelt (who was official Republican nominee in California), 781 votes for Socialist Eugene V. Debs and 169 votes for Prohibition Party nominee Eugene W. Chafin.

## References

[edit]

1. ^ "Chronology". California State Association of Counties. Archived from the original on January 29, 2016. Retrieved February 6, 2015.
2. ^ "Solano County - Board Members".
3. ^ "Solano County - County Administrator".
4. ^ "Mount Vaca". Peakbagger.com. Retrieved April 8, 2015.
5. ^ "Gross Domestic Product: All Industries in Solano County, CA". Federal Reserve Economic Data. Federal Reserve Bank of St. Louis.
6. ^ "Solano County, California". United States Census Bureau. Retrieved January 30, 2022.
7. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
8. ^ a b Landis, John D.; Reilly, Michael (2003). "How We Will Grow: Baseline Projections of California's Urban Footprint Through the Year 2011". In Guhathakurta, Subhrajit (ed.). Integrated Land Use and Environmental Models: A Survey of Current Applications and Research. Springer. p. 84\. ISBN 9783540005766. Retrieved March 14, 2012.
9. ^ "The Botched Reveal of California Forever". The Information. Retrieved September 24, 2023.
10. ^ Dougherty, Conor; Griffith, Erin (August 25, 2023). "The Silicon Valley Elite Who Want to Build a City From Scratch". The New York Times. ISSN 0362-4331. Retrieved September 24, 2023.
11. ^ Alston, John (April 18, 2008). "Solano County's unemployment rate soars to 6.4 percent". abc7news.com. Archived from the original on August 1, 2013. Retrieved March 14, 2012.
12. ^ Walters, Dan (March 29, 1986). "East Bay is a Socioeconomic Dichotomy". Lodi News-Sentinel. p. 12. Retrieved March 14, 2012.
13. ^ "Bay Area median home price falls below $500,000". San Francisco Business Times. July 17, 2008. Retrieved March 14, 2012.
14. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
15. ^ Hogan, C. Michael; Papineau, Marc (September 1989). "Environmental Assessment of the Columbus Parkway Widening between Ascot Parkway and the Northgate Development, Vallejo". Earth Metrics Inc. Report 7853. California State Clearinghouse.
16. ^ "Delta Green Ground Beetle (Elaphrus viridis) | U.S. Fish & Wildlife Service". www.fws.gov. Retrieved February 8, 2024.
17. ^ "CONTRA COSTA GOLDFIELDS" (PDF). Solano County Water Agency. July 2012.
18. ^ "LEGENERE" (PDF). Solano County Water Agency. July 2012.
19. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2024". United States Census Bureau. Retrieved May 10, 2025.
20. ^ "Census of Population and Housing from 1790-2000". US Census Bureau. Retrieved January 24, 2022.
21. ^ "Historical Census Browser". University of Virginia Library. Retrieved May 31, 2014.
22. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved May 31, 2014.
23. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved May 31, 2014.
24. ^ a b "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Solano County, California". United States Census Bureau.
25. ^ a b "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Solano County, California". United States Census Bureau.
26. ^ "California: 1980, General Social and Economic Characteristics, Part 1 - Table 59: Persons by Race, Hispanic Origin, and Sex" (PDF). United States Census Bureau.
27. ^ "California: 1990, Part 1 - Table 5: Race and Hispanic Origin" (PDF). United States Census Bureau. Retrieved July 14, 2024.
28. ^ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Solano County, California". United States Census Bureau.
29. ^ included in the Asian category in the 1980 Census
30. ^ included in the Asian category in the 1990 Census
31. ^ not an option in the 1980 Census
32. ^ not an option in the 1990 Census
33. ^ Narula, Svati Kirsten (April 29, 2014). "The 5 U.S. Counties Where Racial Diversity Is Highest—and Lowest". The Atlantic. Retrieved May 8, 2017.
34. ^ a b c d e f g h i j k l m n o p q U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B02001. U.S. Census website. Retrieved October 26, 2013.
35. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B03003. U.S. Census website. Retrieved October 26, 2013.
36. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19301. U.S. Census website. Retrieved October 21, 2013.
37. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19013. U.S. Census website. Retrieved October 21, 2013.
38. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19113. U.S. Census website. Retrieved October 21, 2013.
39. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates. U.S. Census website. Retrieved October 21, 2013.
40. ^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B01003. U.S. Census website. Retrieved October 21, 2013.
41. ^ "2010 Census P.L. 94-171 Summary File Data". United States Census Bureau.
42. ^ "U.S. Census website". United States Census Bureau. Retrieved May 14, 2011.
43. ^ a b c d e f g h i j Office of the Attorney General, Department of Justice, State of California. Table 11: Crimes – 2009 Archived December 2, 2013, at the Wayback Machine. Retrieved November 14, 2013.
44. ^ a b c United States Department of Justice, Federal Bureau of Investigation. Crime in the United States, 2012, Table 8 (California). Retrieved November 14, 2013.
45. ^ a b c d e f g h i j k l m n o p q California Secretary of State. February 10, 2013 - Report of Registration Archived July 27, 2013, at the Wayback Machine. Retrieved October 31, 2013.
46. ^ "Solano County - NOVEMBER 8, 2022 - Election Results".
47. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved September 5, 2018.
48. ^ "California's 3rd Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved March 1, 2013.
49. ^ "Statewide Database". UC Regents. Archived from the original on February 1, 2015. Retrieved December 4, 2014.
50. ^ "Supplement to the Statement of Vote Statewide Summary by County for State Ballot Measures" (PDF). California Secretary of State. p. 52. Retrieved July 1, 2019.
51. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". www.uselectionatlas.org. Retrieved October 2, 2016.
52. ^ CA Secretary of State – Report of Registration – February 10, 2019 Archived March 23, 2019, at the Wayback Machine
53. ^ "Explore Census Data". United States Census Bureau. Retrieved November 28, 2021.

## External links

[edit]

Wikimedia Commons has media related to Solano County, California.

* Official website
* Munro-Fraser, J. P. (1879). History of Solano County. San Francisco, California: Wood, Alley & Co. An early history of Solano County.
* Hiking trails in Solano County

Places adjacent to Solano County, California

|  | Yolo County |

|
|

|  |
Sonoma County and Napa County |

Solano County, California

| Sacramento County
|  |
| Contra Costa County |

* v
* t
* e

Municipalities and communities of Solano County, California, United States

County seat: Fairfield

Cities|

* Benicia
* Dixon
* Fairfield
* Rio Vista
* Suisun City
* Vacaville
* Vallejo

Solano County map

CDPs|

* Allendale
* Elmira
* Green Valley
* Hartley

Unincorporated
communities|

* Batavia
* Birds Landing
* Collinsville
* Cordelia
* Denverton
* Maine Prairie
* Mankas Corner
* Rio Vista Junction
* Rockville

Ghost town|

* Cement
* Tremont Township

* California portal
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* v
* t
* e

North Bay

Counties|

* Marin
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Major cities|

* Santa Rosa

Cities and towns
100k-200k|

* Fairfield
* Vacaville
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Cities and towns
25k-100k|

* Benicia
* Rohnert Park
* Napa
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Cities and towns
10k-25k|

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and
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|

100k–250k|

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10k–25k|

* Albany
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Under 10k|

* Atherton
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CDPs
over 10k|

* Alamo
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Most populous
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