San Miguel, Contra Costa County, California

For the town in San Luis Obispo County, see San Miguel, California.

Census-designated place in California, United States

San Miguel

Census-designated place

San Miguel

Position in California.

Coordinates: 37°53′15″N 122°02′08″W﻿ / ﻿37.88750°N 122.03556°W﻿ / 37.88750; -122.03556
Country|  United States
State| California
County| Contra Costa
Area

[1]

• Total

| 1.050 sq mi (2.719 km2)
• Land| 1.050 sq mi (2.719 km2)
• Water| 0 sq mi (0 km2)  0%
Elevation

| 299 ft (91 m)
Population

(2020)

• Total

| 3,591
• Density| 3,400/sq mi (1,300/km2)
Time zone| UTC-8 (Pacific (PST))
• Summer (DST)| UTC-7 (PDT)
GNIS feature ID| 2583126
U.S. Geological Survey Geographic Names Information System: San Miguel, Contra Costa County, California

San Miguel is a census-designated place[2] in Contra Costa County, California. San Miguel sits at an elevation of 249 feet (76 m). The 2020 United States census reported San Miguel's population was 3,591.

## Geography

[edit]

According to the United States Census Bureau, the CDP has a total area of 1.050 square miles (3 km2), all of it land.

## Demographics

[edit]

Historical population Census| Pop.| Note| %±

|
|
|

2010| 3,392| | —
2020| 3,591| | 5.9%
U.S. Decennial Census[3]
1850–1870[4][5] 1880-1890[6]
1900[7] 1910[8] 1920[9]
1930[10] 1940[11] 1950[12]
1960[13] 1970[14] 1980[15]
1990[16] 2000[17] 2010[18]

The 2020 United States census reported that San Miguel had a population of 3,591. The population density was 3,420.0 inhabitants per square mile (1,320.5/km2). The racial makeup of San Miguel was 79.0% White, 0.7% African American, 0.1% Native American, 8.6% Asian, 0.3% Pacific Islander, 2.0% from other races, and 9.3% from two or more races. Hispanic or Latino of any race were 8.0% of the population.

The census reported that 99.9% of the population lived in households and 0.1% lived in non-institutionalized group quarters.

There were 1,296 households, out of which 35.6% included children under the age of 18, 70.7% were married-couple households, 3.5% were cohabiting couple households, 15.3% had a female householder with no partner present, and 10.6% had a male householder with no partner present. 14.6% of households were one person, and 9.5% were one person aged 65 or older. The average household size was 2.77. There were 1,063 families (82.0% of all households).

The age distribution was 22.6% under the age of 18, 6.6% aged 18 to 24, 16.6% aged 25 to 44, 32.1% aged 45 to 64, and 22.1% who were 65 years of age or older. The median age was 47.6 years. For every 100 females, there were 94.3 males.

There were 1,318 housing units at an average density of 1,255.2 units per square mile (484.6 units/km2), of which 1,296 (98.3%) were occupied. Of these, 90.7% were owner-occupied, and 9.3% were occupied by renters.[19][20]

## Education

[edit]

San Miguel is in the Walnut Creek Elementary School District and the Acalanes Union High School District.[21]

## References

[edit]

1. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved October 30, 2021.
2. ^ U.S. Geological Survey Geographic Names Information System: San Miguel, Contra Costa County, California
3. ^ "Decennial Census by Decade". United States Census Bureau.
4. ^ "1870 Census of Population - Population of Civil Divisions less than Counties - California - Almeda County to Sutter County" (PDF). United States Census Bureau.
5. ^ "1870 Census of Population - Population of Civil Divisions less than Counties - California - Tehama County to Yuba County" (PDF). United States Census Bureau.
6. ^ "1890 Census of Population - Population of California by Minor Civil Divisions" (PDF). United States Census Bureau.
7. ^ "1900 Census of Population - Population of California by Counties and Minor Civil Divisions" (PDF). United States Census Bureau.
8. ^ "1910 Census of Population - Supplement for California" (PDF). United States Census Bureau.
9. ^ "1920 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
10. ^ "1930 Census of Population - Number and Distribution of Inhabitants - California" (PDF). United States Census Bureau.
11. ^ "1940 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
12. ^ "1950 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
13. ^ "1960 Census of Population - General population Characteristics - California" (PDF). United States Census Bureau.
14. ^ "1970 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
15. ^ "1980 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
16. ^ "1990 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
17. ^ "2000 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
18. ^ "2010 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
19. ^ "San Miguel CDP (Contra Costa County), California; DP1: Profile of General Population and Housing Characteristics - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 28, 2025.
20. ^ "San Miguel CDP (Contra Costa County), California; P16: Household Type - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 28, 2025.
21. ^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Contra Costa County, CA" (PDF). U.S. Census Bureau. Retrieved December 25, 2022.

* v
* t
* e

Municipalities and communities of Contra Costa County, California, United States

County seat: Martinez

Cities and towns|

* Antioch
* Brentwood
* Clayton
* Concord
* Danville
* El Cerrito
* Hercules
* Lafayette
* Martinez
* Moraga
* Oakley
* Orinda
* Pinole
* Pittsburg
* Pleasant Hill
* Richmond
* San Pablo
* San Ramon
* Walnut Creek

Contra Costa County map

CDPs|

* Acalanes Ridge
* Alamo
* Alhambra Valley
* Bay Point
* Bayview
* Bethel Island
* Blackhawk
* Byron
* Camino Tassajara
* Castle Hill
* Clyde
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* Crockett
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* El Sobrante
* Kensington
* Knightsen
* Montalvin Manor
* Mountain View
* Norris Canyon
* North Gate
* North Richmond
* Pacheco
* Port Costa
* Reliez Valley
* Rodeo
* Rollingwood
* San Miguel
* Saranap
* Shell Ridge
* Tara Hills
* Vine Hill

Former CDPs|

* Bayview-Montalvin
* Blackhawk-Camino Tassajara
* Waldon

Unincorporated
communities|

* Canyon
* Cornwall
* Nichols
* Oleum
* Rheem
* Selby
* Stege
* Tassajara
* Tormey
* Valona

Ghost towns|

* Eckley
* Giant (Nitro)
* Judsonville
* Nortonville
* Point of Timber
* Port Chicago
* Somersville
* Stewartville
* West Hartley
* Winehaven

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|

100k–250k|

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25k–50k|

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10k–25k|

* Albany
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Under 10k|

* Atherton
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* Brisbane
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* Cloverdale
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* Fairfax
* Los Altos Hills
* Monte Sereno
* Portola Valley
* Ross
* St. Helena
* Sausalito
* Sebastopol
* Tiburon
* Woodside
* Yountville

CDPs
over 10k|

* Alamo
* Alum Rock
* Ashland
* Bay Point
* Castro Valley
* Cherryland
* Discovery Bay
* El Sobrante
* Fairview
* North Fair Oaks
* San Lorenzo
* Stanford
* Tamalpais-Homestead Valley

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