Warren County, Illinois

Warren County is a located in the  of. As of 2000, the population was 18,735. Its is.

History
Warren County was organized in out of. Pike County, consisted of all portions of state North and West of the Illinois River before 1825. was formed in 1841 from the western area of Warren County. Warren County was named for Dr., killed at the in. He is believed to have been the first officer to fall in the.

Geography
According to the, the county has a total area of 1,407 (543 ). 1,405 km² (543 sq mi) of it is land and 2 km² (1 sq mi) of it (0.12%) is water.

Adjacent Counties

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Demographics
As of the of 2000, there were 18,735 people, 7,166 households, and 4,966 families residing in the county. The was 13/km² (34/sq mi). There were 7,787 housing units at an average density of 6/km² (14/sq mi). The racial makeup of the county was 95.60%, 1.59% or , 0.18% , 0.34% , 0.10% , 1.10% from , and 1.10% from two or more races. 2.71% of the population were or  of any race.

There were 7,166 households out of which 29.80% had children under the age of 18 living with them, 56.50% were 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 for the county was $16,946. About 6.80% of families and 9.20% of the population were below the, including 11.50% of those under age 18 and 7.00% of those age 65 or over.

Census designated places



 * [Welcome to Warren Co., IL AHGP]