Warren County, Illinois

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

History

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.

File:Warren County Illinois 1825.png|Warren County from the time of its creation to 1831

File:Warren County Illinois 1831.png|Between 1831 and 1835, Mercer County was temporarily attached to Warren until it could organize its own county government.

File:Warren_County,_Illinois_-_1835.png|Warren County between 1835 and 1841

File:Warren County Illinois 1841.png|Warren County in 1841, reduced to its current borders by the creation of Henderson County

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Geography

According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.1%) is water.

In recent years, average temperatures in the county seat of Monmouth have ranged from a low of in January to a high of in July, although a record low of was recorded in February 1905 and a record high of was recorded in July 1936. Average monthly precipitation ranged from in January to in July.

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|footnote=U.S. Decennial Census<br />1790-1960 1900-1990<br />1990-2000 2010

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2020 census

As of the 2020 census, the county had a population of 16,835. The median age was 40.9 years, with 21.3% of residents under the age of 18 and 21.0% aged 65 years or older. For every 100 females there were 98.1 males, and for every 100 females age 18 and over there were 96.5 males age 18 and over.

The racial makeup of the county was 82.2% White, 3.5% Black or African American, 0.4% American Indian and Alaska Native, 2.0% Asian, 0.1% Native Hawaiian and Pacific Islander, 5.6% from other races, and 6.2% from two or more races. Hispanic or Latino residents of any race comprised 10.6% of the population.

There were 6,720 households in the county, of which 27.4% had children under the age of 18 living in them. Of all households, 48.3% were married-couple households, 19.3% were households with a male householder and no spouse or partner present, and 25.2% were households with a female householder and no spouse or partner present. About 31.1% of all households were made up of individuals and 15.3% had someone living alone who was 65 years of age or older.

!Pop 1990

!Pop 2000

!Pop 2010

!style="background-color: #ffffb3;" | Pop 2020

!% 1980

!% 1990

!% 2000

!% 2010

!style="background-color: #ffffb3;" |% 2020

|White alone (NH)

|21,213

|18,518

|17,672

|15,582

|style='background: #ffffe6; |13,494

|96.67%

|96.54%

|94.33%

|88.00%

|style='background: #ffffe6; |80.15%

|Black or African American alone (NH)

|360

|355

|296

|287

|style='background: #ffffe6; |577

|1.64%

|1.85%

|1.58%

|1.62%

|style='background: #ffffe6; |3.43%

|Native American or Alaska Native alone (NH)

|31

|20

|30

|32

|style='background: #ffffe6; |31

|0.14%

|0.10%

|0.16%

|0.18%

|style='background: #ffffe6; |0.18%

|Asian alone (NH)

|63

|69

|61

|93

|style='background: #ffffe6; |329

|0.29%

|0.36%

|0.33%

|0.53%

|style='background: #ffffe6; |1.95%

|Native Hawaiian or Pacific Islander alone (NH)

|17

|style='background: #ffffe6; |15

|0.09%

|0.05%

|style='background: #ffffe6; |0.09%

|Other race alone (NH)

|41

|12

|style='background: #ffffe6; |46

|0.19%

|0.06%

|0.03%

|0.05%

|style='background: #ffffe6; |0.27%

|Mixed race or Multiracial (NH)

|146

|205

|style='background: #ffffe6; |554

|0.78%

|1.16%

|style='background: #ffffe6; |3.29%

|Hispanic or Latino (any race)

|235

|207

|507

|1,490

|style='background: #ffffe6; |1,789

|1.07%

|1.08%

|2.71%

|8.41%

|style='background: #ffffe6; |10.63%

|Total

|21,943

|19,181

|18,735

|17,707

|style='background: #ffffe6; |16,835

|100.00%

|style='background: #ffffe6; |100.00%

2010 census

At the 2010 United States census, there were 17,707 people, 6,918 households and 4,617 families residing in the county. The population density was . There were 7,682 housing units at an average density of . 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.

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.

Politics

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.

Transportation

Transit

Burlington Trailways
List of intercity bus stops in Illinois

Airport

Monmouth Municipal Airport

Major highways

20px U.S. Highway 34
20px U.S. Highway 67
20px Illinois Route 94
20px Illinois Route 116
20px Illinois Route 135
20px Illinois Route 164

Law enforcement

State

Illinois State Police District 14, Macomb

County

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

Alexis Police Department, Alexis
Monmouth Police Department, Monmouth

Volunteer

Warren County/Monmouth Auxiliary Police Corps

Communities

City

Monmouth

Villages

Alexis (partly in Mercer County)
Kirkwood
Little York
Roseville

Census-designated place

Cameron

Unincorporated communities

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

Townships

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

References

External links

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