Crawford County is a county located in southwest Wisconsin, United States. Its county seat is Prairie du Chien. Along with Brown County, it is one of Wisconsin's original counties, established by the Michigan Territorial legislature in 1818, and named after William H. Crawford, James Monroe's Treasurer at the time. Originally, it covered the entire western half of Wisconsin's present area. In 1836 it was transferred to the newly formed Wisconsin Territory as Michigan prepared for statehood and has gradually been subdivided into its present area.
As of July 2002, its population was estimated at 16,897, a loss of nearly 350 people from the 2000 census figure of 17,243.
Three rivers run through the county:
There were 6,677 households out of which 31.60% had children under the age of 18 living with them, 56.70% were married couples living together, 8.40% had a female householder with no husband present, and 30.90% were non-families. 26.70% of all households were made up of individuals and 13.00% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.00.
In the county, the population was spread out with 26.20% under the age of 18, 8.10% from 18 to 24, 25.00% from 25 to 44, 24.80% from 45 to 64, and 16.00% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 102.20 males. For every 100 females age 18 and over, there were 99.30 males.