Warren County, Illinois

County in Illinois, United States

County in Illinois

Warren County

County

Warren County Courthouse in Monmouth

Location within the U.S. state of Illinois

Illinois's location within the U.S.

Coordinates: 40°51′N 90°37′W﻿ / ﻿40.85°N 90.61°W﻿ / 40.85; -90.61
Country|  United States
State|  Illinois
Founded| 1825
Named after| Joseph Warren
Seat| Monmouth
Largest city| Monmouth
Area

• Total

| 543 sq mi (1,410 km2)
• Land| 542 sq mi (1,400 km2)
• Water| 0.6 sq mi (2 km2)  0.1%
Population

(2020)

• Total

| 16,835

• Estimate

| 16,185
• Density| 31/sq mi (12/km2)
Time zone| UTC−6 (Central)
• Summer (DST)| UTC−5 (CDT)
Congressional districts| 15th, 17th
Website| www.warrencountyil.com

Warren County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 16,835.[1] Its county seat is Monmouth.[2]

## History

[edit]

Warren County was organized in 1825 out of Pike County which consisted of all portions of the state north and west of the Illinois River before 1825. Henderson County was formed in 1841 from the western area of Warren County.

Warren County was named for Dr. Joseph Warren, killed at the Battle of Bunker Hill in 1775. He is believed to have been the first officer to die in the Revolutionary War.

The current courthouse, constructed of red Portage stone, was completed in 1895.

* Warren County from the time of its creation to 1831

* Between 1831 and 1835, Mercer County was temporarily attached to Warren until it could organize its own county government.[3]

* Warren County between 1835 and 1841

* Warren County in 1841, reduced to its current borders by the creation of Henderson County

## Geography

[edit]

According to the U.S. Census Bureau, the county has a total area of 543 square miles (1,410 km2), of which 542 square miles (1,400 km2) is land and 0.6 square miles (1.6 km2) (0.1%) is water.[4]

### Climate and weather

[edit]

Monmouth, Illinois

Climate chart (explanation)

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1.6

1.7

2.9

3.8

4.3

4.3

4.3

3.5

2.7

2.3

█ Average max. and min. temperatures in °F
█ Precipitation totals in inches
Source: The Weather Channel[5]
| Metric conversion

108

108

110

102

█ Average max. and min. temperatures in °C
█ Precipitation totals in mm

In recent years, average temperatures in the county seat of Monmouth have ranged from a low of 15 °F (−9 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −27 °F (−33 °C) was recorded in February 1905 and a record high of 110 °F (43 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.62 inches (41 mm) in January to 4.33 inches (110 mm) in July.[5]

### Adjacent counties

[edit]

* Mercer County (north)
* Knox County (east)
* Fulton County (southeast)
* McDonough County (south)
* Henderson County (west)

## Demographics

[edit]

Historical population Census| Pop.| Note| %±

|
|
|

1830| 308| | —
1840| 6,739| | 2,088.0%
1850| 8,176| | 21.3%
1860| 18,336| | 124.3%
1870| 23,174| | 26.4%
1880| 22,933| | −1.0%
1890| 21,281| | −7.2%
1900| 23,163| | 8.8%
1910| 23,313| | 0.6%
1920| 21,488| | −7.8%
1930| 21,745| | 1.2%
1940| 21,286| | −2.1%
1950| 21,981| | 3.3%
1960| 21,587| | −1.8%
1970| 21,595| | 0.0%
1980| 21,943| | 1.6%
1990| 19,181| | −12.6%
2000| 18,735| | −2.3%
2010| 17,707| | −5.5%
2020| 16,835| | −4.9%
2023 (est.)| 16,185| [6]| −3.9%
U.S. Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010[11]

At the 2010 United States census, there were 17,707 people, 6,918 households and 4,617 families residing in the county.[12] The population density was 32.6 inhabitants per square mile (12.6/km2). There were 7,682 housing units at an average density of 14.2 per square mile (5.5/km2).[4] The racial makeup of the county was 91.3% white, 1.7% black or African American, 0.5% Asian, 0.2% American Indian, 0.1% Pacific islander, 4.5% from other races, and 1.6% from two or more races. Those of Hispanic or Latino origin made up 8.4% of the population.[12] In terms of ancestry, 25.2% were German, 14.7% were Irish, 11.3% were English, 10.0% were Swedish, and 5.5% were American.[13]

Of the 6,918 households, 29.6% had children under the age of 18 living with them, 52.2% were married couples living together, 9.7% had a female householder with no husband present, 33.3% were non-families, and 28.2% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.91. The median age was 39.6 years.[12]

The median household income was $41,636 and the median family income was $49,623. Males had a median income of $40,289 and females $25,460. The per capita incomewas $20,047. About 11.0% of families and 13.4% of the population were below the poverty line, including 18.1% of those under age 18 and 10.6% of those age 65 or over.[14]

## Politics

[edit]

Warren County is located in Illinois's 17th Congressional District and is currently represented by Democrat Cheri Bustos. For the Illinois House of Representatives, the county is split between the 93rd district, currently represented by Republican Norine Hammond, and the 94th district, currently represented by Randy Frese. The county is located in the 47th district of the Illinois Senate, and is currently represented by Republican Jil Tracy.

In presidential elections, Warren County voted for the Republican Party's candidate in every election from 1936 through 1988, often by a wide margin. From 1992 to 2012, the contest in Warren County was more competitive, with the Democratic Party's candidate winning four out of six times. In every election since then, the county has voted Republican by increasing double-digit margins.

United States presidential election results for Warren County, Illinois[15] Year  | Republican | Democratic | Third party(ies)

|
|
|

No.  | % | No.  | % | No.  | %
2024 | 4,579  | 61.30% | 2,711  | 36.29%  | 180  | 2.41%
2020 | 4,676  | 59.01% | 3,090  | 39.00%  | 158  | 1.99%
2016 | 4,275  | 54.76% | 2,987  | 38.26%  | 545  | 6.98%
2012 | 3,618  | 46.28%  | 4,044  | 51.73% | 156  | 2.00%
2008 | 3,637  | 45.12%  | 4,286  | 53.17% | 138  | 1.71%
2004 | 4,474  | 52.90% | 3,938  | 46.56%  | 45  | 0.53%
2000 | 3,899  | 51.09% | 3,524  | 46.18%  | 208  | 2.73%
1996 | 2,974  | 41.02%  | 3,500  | 48.28% | 776  | 10.70%
1992 | 3,325  | 39.37%  | 3,661  | 43.35% | 1,460  | 17.29%
1988 | 4,584  | 55.54% | 3,617  | 43.82%  | 53  | 0.64%
1984 | 5,846  | 63.59% | 3,318  | 36.09%  | 29  | 0.32%
1980 | 5,667  | 62.47% | 2,756  | 30.38%  | 648  | 7.14%
1976 | 5,822  | 59.25% | 3,808  | 38.75%  | 196  | 1.99%
1972 | 7,021  | 70.15% | 2,969  | 29.67%  | 18  | 0.18%
1968 | 5,877  | 60.00% | 3,085  | 31.50%  | 833  | 8.50%
1964 | 5,258  | 52.95% | 4,670  | 47.02%  | 3  | 0.03%
1960 | 7,221  | 65.25% | 3,835  | 34.66%  | 10  | 0.09%
1956 | 7,580  | 71.63% | 2,996  | 28.31%  | 6  | 0.06%
1952 | 8,020  | 72.88% | 2,973  | 27.02%  | 11  | 0.10%
1948 | 6,738  | 66.20% | 3,367  | 33.08%  | 74  | 0.73%
1944 | 7,085  | 64.12% | 3,926  | 35.53%  | 39  | 0.35%
1940 | 7,790  | 61.17% | 4,878  | 38.30%  | 67  | 0.53%
1936 | 6,919  | 55.51% | 5,409  | 43.39%  | 137  | 1.10%
1932 | 5,498  | 48.84%  | 5,610  | 49.83% | 150  | 1.33%
1928 | 7,915  | 73.61% | 2,681  | 24.93%  | 157  | 1.46%
1924 | 6,912  | 65.07% | 2,440  | 22.97%  | 1,271  | 11.96%
1920 | 6,309  | 69.41% | 2,236  | 24.60%  | 545  | 6.00%
1916 | 6,294  | 56.44% | 4,498  | 40.33%  | 360  | 3.23%
1912 | 2,627  | 44.03% | 2,080  | 34.86%  | 1,259  | 21.10%
1908 | 3,283  | 54.12% | 2,327  | 38.36%  | 456  | 7.52%
1904 | 3,563  | 61.35% | 1,559  | 26.84%  | 686  | 11.81%
1900 | 3,618  | 56.97% | 2,501  | 39.38%  | 232  | 3.65%
1896 | 3,394  | 55.24% | 2,604  | 42.38%  | 146  | 2.38%
1892 | 2,725  | 50.69% | 2,294  | 42.67%  | 357  | 6.64%

## Transportation

[edit]

### Transit

[edit]

* Burlington Trailways
* List of intercity bus stops in Illinois

### Airport

[edit]

* Monmouth Municipal Airport "info". Retrieved August 2, 2008.

### Major highways

[edit]

* U.S. Highway 34
* U.S. Highway 67
* Illinois Route 94
* Illinois Route 116
* Illinois Route 135
* Illinois Route 164

## Law enforcement

[edit]

### State

[edit]

* Illinois State Police District 14, Macomb

### County

[edit]

* Warren County Sheriff's Office

In a scene in the 2018 film "Halloween", the local sheriff drives a car that says Warren County Sheriff's Department. Confirming that the fictional town of Haddonfield is located in Warren County.

### Municipal

[edit]

* Alexis Police Department, Alexis
* Monmouth Police Department, Monmouth

### Volunteer

[edit]

Warren County/Monmouth Auxiliary Police Corps

## Communities

[edit]

### City

[edit]

* Monmouth

### Villages

[edit]

* Alexis (partly in Mercer County)
* Kirkwood
* Little York
* Roseville

### Census-designated place

[edit]

* Cameron

### Unincorporated communities

[edit]

* Berwick
* Coldbrook
* Eleanor
* Gerlaw
* Greenbush
* Larchland
* Ormonde
* Ponemah
* Shanghai City
* Smithshire
* Swan Creek
* Utah
* Youngstown

### Townships

[edit]

Warren County is divided into these townships:

* Berwick
* Cold Brook
* Ellison
* Floyd
* Greenbush
* Hale
* Kelly
* Lenox
* Monmouth
* Point Pleasant
* Roseville
* Spring Grove
* Sumner
* Swan
* Tompkins

## See also

[edit]

* National Register of Historic Places listings in Warren County, Illinois

## References

[edit]

1. ^ "Warren County, Illinois". United States Census Bureau. Retrieved June 10, 2023.
2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
3. ^ White, Jesse. Origin and Evolution of Illinois Counties. State of Illinois, March 2010.
4. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 12, 2020. Retrieved July 12, 2015.
5. ^ a b "Monthly Averages for Monmouth, Illinois". The Weather Channel. Retrieved January 27, 2011.
6. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved April 2, 2024.
7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 9, 2014.
8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 9, 2014.
9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 9, 2014.
10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 9, 2014.
11. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved July 9, 2014.
12. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
13. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
14. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
15. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved November 13, 2018.

Places adjacent to Warren County, Illinois

|  | Mercer County |

|
|

|  |
Henderson County |

Warren County, Illinois

| Knox County
|  |
| McDonough County | Fulton County

## External links

[edit]

* Warren County Circuit Court
* Welcome to Warren Co., IL AHGP

* v
* t
* e

Municipalities and communities of Warren County, Illinois, United States

County seat: Monmouth

Cities|

* Monmouth

Map of Illinois highlighting Warren County

Villages|

* Alexis‡
* Avon‡
* Kirkwood
* Little York
* Roseville

Townships|

* Berwick
* Cold Brook
* Ellison
* Floyd
* Greenbush
* Hale
* Kelly
* Lenox
* Monmouth
* Point Pleasant
* Roseville
* Spring Grove
* Sumner
* Swan
* Tompkins

CDP|

* Cameron

Other
communities|

* Berwick
* Coldbrook
* Eleanor
* Gerlaw
* Greenbush
* Larchland
* Ormonde
* Ponemah
* Shanghai City
* Smithshire
* Swan Creek
* Utah
* Youngstown

Footnotes|

‡This populated place also has portions in an adjacent county or counties

* Illinois portal
* United States portal

* v
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* e

Central Illinois

Metropolitan areas|

* Bloomington–Normal
* Champaign–Urbana
* Peoria
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Counties|

* Adams
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* Cass
* Champaign
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* Coles
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* DeWitt
* Douglas
* Edgar
* Edwards
* Ford
* Fulton
* Greene
* Hancock
* Henderson
* Iroquois
* Jersey
* Knox
* Livingston
* Logan
* Macon
* Macoupin
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* Mason
* McDonough
* McLean
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Principal cities (30,000+)|

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Transit systems|

* Champaign County Area Rural Transit System
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Amtrak stations|

* Carlinville station
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Interstates|

*   *   *   *   *   *   *   *   *

Commercial airports|

* Abraham Lincoln Capital Airport
* Central Illinois Regional Airport
* Decatur Airport
* General Wayne A. Downing Peoria International Airport
* Quincy Regional Airport
* University of Illinois Willard Airport

Military installations|

* Camp Butler National Cemetery
* Camp Ellis (closed)
* Chanute Air Force Base (closed)
* Fort Crevecoeur (Colonial French)
* Fort Johnson (War of 1812)
* German Prisoner of War Camp (closed)
* Hanna City Air Force Station

Higher education|

| Two-year colleges|

* Carl Sandburg College
* Danville Area Community College
* Heartland Community College
* Illinois Central College
* John Wood Community College
* Kankakee Community College
* Lake Land College
* Lewis and Clark Community College
* Lincoln Land Community College
* Parkland College
* Richland Community College
* Spoon River College

|

Four-year colleges|

* Blackburn College
* Eureka College
* Illinois College
* Knox College
* MacMurray College
* Midstate College
* Monmouth College

Universities|

* Benedictine University at Springfield
* Bradley University
* Eastern Illinois University
* Illinois State University
* Illinois Wesleyan University
* Millikin University
* Quincy University
* University of Illinois Springfield
* University of Illinois Urbana-Champaign
* Western Illinois University

Sports teams based in
Central Illinois|

| Baseball|

* Danville Dans (Prospect League)
* Normal CornBelters (Frontier League)
* Peoria Chiefs (Midwest League)
* Quincy Gems (Prospect League)
* Springfield Lucky Horseshoes (Prospect League)

|

Hockey|

* Bloomington Bison (ECHL)
* Peoria Mustangs (NA3HL)
* Peoria Rivermen (SPHL)
* Springfield Jr. Blues (NAHL)

Collegiate athletics|

| NCAA
Division I|

* Bradley Braves
* Eastern Illinois Panthers
* Illinois Fighting Illini
* Illinois State Redbirds
* Western Illinois Leathernecks

|

NCAA
Division II|

Illinois–Springfield Prairie Stars
Quincy Hawks

NCAA
Division III|

Millikin Big Blue

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* Pontiac
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* St. Charles
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* Wheaton

Counties|

* Adams
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* Bureau
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40°51′N 90°37′W﻿ / ﻿40.85°N 90.61°W﻿ / 40.85; -90.61
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