DeWitt County, Illinois

DeWitt County is a located in the  of. As of, the population is 16,798. Its name is in honor of the seventh State,. Its is. The and the  list the county's name as De Witt, although the county uses the name DeWitt (no space). The County was formed in 1839 from and.

Geography
According to the, the county has a total area of 1,049 (405 ). 1,030 km² (398 sq mi) of it is land and 20 km² (8 sq mi) of it (1.87%) is water.

Adjacent Counties

 * - north
 * - east
 * - south
 * - west

Demographics
As of the of 2000, there were 16,798 people, 6,770 households, and 4,684 families residing in the county. The was 16/km² (42/sq mi). There were 7,282 housing units at an average density of 7/km² (18/sq mi). The racial makeup of the county was 97.81%, 0.49% or , 0.19% , 0.28% , 0.02% , 0.50% from , and 0.71% from two or more races. 1.27% of the population were or  of any race.

There were 6,770 households out of which 30.90% had children under the age of 18 living with them, 56.80% were living together, 8.50% had a female householder with no husband present, and 30.80% were non-families. 26.80% of all households were made up of individuals and 12.60% 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 2.95.

In the county the population was spread out with 24.60% under the age of 18, 7.80% from 18 to 24, 28.30% from 25 to 44, 23.50% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 95.60 males. For every 100 females age 18 and over, there were 93.50 males.

The median income for a household in the county was $41,256, and the median income for a family was $50,429. Males had a median income of $35,902 versus $23,998 for females. The for the county was $20,488. About 5.80% of families and 8.20% of the population were below the, including 11.90% of those under age 18 and 7.20% of those age 65 or over.