Warren County, Illinois

Warren County, Illinois
Map
Map of Illinois highlighting Warren County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Illinois's location in the U.S.
Statistics
Founded 1825
Seat Monmouth
Area
 - Total
 - Land
 - Water

543 sq mi (1,406 km²)
542 sq mi (1,404 km²)
1 sq mi (3 km²), 0.12%
Population
 - (2000)
 - Density

18,735
34/sq mi (13/km²)
Website: www.warrencountyil.com

Warren County is a county located in the U.S. state of Illinois. As of 2000, the population was 18,735. Its county seat is Monmouth, Illinois[1].

Warren County is part of the Galesburg Micropolitan Statistical Area.

Contents

History

Warren County was organized in 1825 out of Pike County. Pike County, consisted of all portions of 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 fall in the Revolutionary War.

Geography

According to the U.S. Census Bureau, the county has a total area of 543 square miles (1,407 km²), of which, 543 square miles (1,405 km²) of it is land and 1 square miles (2 km²) of it (0.12%) is water.

Adjacent counties

Demographics

Historical populations
Census Pop.  %±
1900 23,163
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%
1980 21,943 1.6%
1990 19,181 −12.6%
2000 18,735 −2.3%
IL Counties 1900-1990

As of the census[2] of 2000, there were 18,735 people, 7,166 households, and 4,966 families residing in the county. The population density was 34 people per square mile (13/km²). There were 7,787 housing units at an average density of 14 per square mile (6/km²). The racial makeup of the county was 95.60% White, 1.59% Black or African American, 0.18% Native American, 0.34% Asian, 0.10% Pacific Islander, 1.10% from other races, and 1.10% from two or more races. 2.71% of the population were Hispanic or Latino of any race. 18.7% were of American, 17.1% German, 13.8% English, 12.2% Irish and 9.0% Swedish ancestry according to Census 2000.

There were 7,166 households out of which 29.80% had children under the age of 18 living with them, 56.50% were married couples living together, 8.80% had a female householder with no husband present, and 30.70% were non-families. 26.70% of all households were made up of individuals and 12.70% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.94.

In the county the population was spread out with 23.20% under the age of 18, 12.40% from 18 to 24, 24.50% from 25 to 44, 23.60% from 45 to 64, and 16.30% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 93.80 males. For every 100 females age 18 and over, there were 91.10 males.

The median income for a household in the county was $36,224, and the median income for a family was $42,437. Males had a median income of $30,365 versus $20,453 for females. The per capita income for the county was $16,946. About 6.80% of families and 9.20% of the population were below the poverty line, including 11.50% of those under age 18 and 7.00% of those age 65 or over.

Transport

Air

Road

Law Enforcement

State

County

Municipal

Volunteer

Warren County/Monmouth Auxiliary Police Corps

Cities and towns

Unincorporated communities

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