Janesville (city) Population Statistics

Rock County, Wisconsin

Year Population
1842 215
1843 333
1845 855
1847 1,458
1849 1,812
1850 3,100
1853 4,800
1855 7,018
1864 7,627
1885 9,018
1890 10,836
1900 13,185
1910 13,894
1920 18,293
1930 21,628
1940 22,992
1950 24,899
1960 35,164
1970 46,426
1980 51,971
1990 52,210
2000 59,498

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