Douglas County, Illinois

Douglas County is a located in the  of. As of 2000, the population was 19,922. Its is.

Geography
According to the, the county has a total area of 1,081 (417 ). 1,080 km² (417 sq mi) of it is land and 1 km² (1 sq mi) of it (0.13%) is water.

Adjacent Counties

 * - north
 * - northeast
 * - east
 * - south
 * - west
 * - northwest

History
Douglas County was formed in out of. It was named in honor of, who was elected to the in , following the.

Demographics
As of the of 2000, there were 19,922 people, 7,574 households, and 5,476 families residing in the county. The was 18/km² (48/sq mi). There were 8,005 housing units at an average density of 7/km² (19/sq mi). The racial makeup of the county was 97.25%, 0.30% or , 0.16% , 0.26% , 0.01% , 1.32% from , and 0.70% from two or more races. 3.46% of the population were or  of any race.

There were 7,574 households out of which 33.50% had children under the age of 18 living with them, 61.10% were living together, 7.90% had a female householder with no husband present, and 27.70% were non-families. 24.70% of all households were made up of individuals and 12.30% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.10.

In the county the population was spread out with 27.00% under the age of 18, 8.00% from 18 to 24, 26.80% from 25 to 44, 22.10% from 45 to 64, and 16.00% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 94.40 males. For every 100 females age 18 and over, there were 92.00 males.

The median income for a household in the county was $39,439, and the median income for a family was $46,117. Males had a median income of $33,079 versus $21,774 for females. The for the county was $18,474. About 4.20% of families and 6.40% of the population were below the, including 7.90% of those under age 18 and 7.60% of those age 65 or over.