Rock County Population Figures
Rock County’s current population of 163,687 continues to rank among Wisconsin’s largest counties. Steady-to-moderate population growth, as measured by comparative Census data, is directly attributed to the County’s close proximity to larger, metropolitan locations such as Madison, Milwaukee, Rockford and Chicago. Geography, industry and transportation linkages - coupled with lower cost of living indicators - continue to facilitate Rock County’s overall positive growth patterns.
For additional information, please click on any one of the following community names and/or visit the Rock County Profile (2020 U.S. Census Bureau) online.
City of Beloit
Population 36,657 |
Town of Beloit
Population 7,721 |
City of Brodhead
Population 85 |
City of Edgerton
Population 5,779 |
City of Evansville
Population 5,703 |
City of Janesville
Population 65,615 |
City of Milton
Population 5,716 |
Village of Clinton
Population 2,221 |
Village of Footville
Population 772 |
Village of Orfordville
Population 1,473 |
Town of Avon
Population 570 |
Town of Bradford
Population 1,013 |
Town of Center
Population 1,046 |
Town of Clinton
Population 889 |
Town of Fulton
Population 3,580 |
Town of Harmony
Population 2,569 |
Town of Janesville
Population 3,665 |
Town of Johnstown
Population 766 |
Town of LaPrairie
Population 784 |
Town of Lima
Population 1,271 |
Town of Magnolia
Population 742 |
Town of Milton
Population 3,100 |
Town of Newark
Population 1,510 |
Town of Plymouth
Population 1,245 |
Town of Porter
Population 969 |
Town of Rock
Population 2,981 |
Town of Spring Valley
Population 728 |
Town of Turtle
Population 2,393 |
Town of Union
Population 2,104 |
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