Located in the south central corner of the Madison Region and directly along the Wisconsin-Illinois border, Rock County is one of Wisconsin’s largest counties, both in square miles and population. With diversified strengths in manufacturing, food processing, and logistics, Rock County is positioned along the I-39 corridor and offers easy marketplace access and exposure. Paired with affordable cost of living standards and high quality of life, Rock County is a powerful economic engine for the state and region.
Population
2010 Population: 160,331
2015 Population Estimate: 161,448
Labor Force
Labor Force Profile of Rock County
Major Employers
Top private-sector employers in Rock County include Frito Lay, Hormel Foods, Le Mans Corp, Grainger, and Seneca Foods.
Colleges & Universities
University of Wisconsin – Rock County
Beloit College
Blackhawk Technical College
Large Communities
- City of Janesville (county seat): 63,510
- City of Beloit: 36,792
- Town of Beloit: 7,625
- Milton: 5,538
- Edgerton: 5,521
- Evansville: 5,135
- Town of Janesville: 3,444
- Brodhead: 3,285
- Fulton: 3,269
- Rock: 3,183
Economic Development Professional
Rock County Economic Development Alliance
James Otterstein, Economic Development Manager
608.757.5598 | Email James
Sources: U.S. Census; Wisconsin’s WORKnet; Municipality Population Estimates, Wisconsin Department of Administration, Demographic Services Center; Applied Geographic Solutions via LocateInWisconsin.
