Rock County, Wisconsin Basics:
Rock County Wisconsin - Government Site
Population: 160,311
Area: 718 square miles
County seat: Janesville
Area code(s) in use: 608
Time zone: CST
High school graduate or higher: 87.3%
Bachelor's degree or higher: 19.5%
Median household income: $50,316
Persons in poverty: 13.5%
Home ownership rate: 72.1%
Mean travel time to work: 22.6 minutes
Adjacent counties:
Boone (IL) Dane Green Jefferson Walworth Winnebago (IL)