Rock County is located in South Wisconsin. The County Seat is Janesville and the largest city is Janesville. The Official Web Site is located at http://www.co.rock.wi.us. The 2014 population estimate is 161,188 and the 2010 census population was 160,331. The land area is 718.14 square miles and there are 223.3 persons per square mile.
91% of the population is White, 5.1% is Black or African American, 8% is Hispanic or Latino, 1.1% is Asian, 0.5% is American Indian or Alaska Native, 0.1% is Native Hawaiian or Pacific Islander, and 2.1% is two or more races. 87.7% have a high school degree or higher, and 19.4% have a Bachelor degree or higher.
The median home value is $133,000, there are 63,309 households, an average of 2.48 persons per household. The per capita income is $24,094, the median household income is $49,435, and 14.3% of the persons in Rock County are considered below poverty level.
The total number of firms, at last estimate, was 11,212. Retail sales (in $1000) were $2,439,767, and sales per capita were $15,301. The percentage of black-owned firms is 2.7%, and the percentage of women-owned firms is 27.9%.
If you find a broken link below, please use the Report a Broken Link form to let us know.