PlainCities

Census tracts · Rock County

Census tracts in Rock County, Wisconsin

Rock County is divided into 41 census tracts. Among the tracts with a reliable estimate, median household income runs from $22,204 in Tract 1 to $124,925 in Tract 13.03 (ACS 2020-2024 5-year estimates).

Every census tract in Rock County

Sort by any column. A tract's number repeats across counties; the GEOID under each name is unique. A ring marks an estimate whose coefficient of variation is over 40%.

Census tracts of Rock County, ACS 2020-2024 5-year estimates
Tract 155105000100Janesville899879±165$22,204$168,800$86627.5%
Tract 255105000200Janesville2,8512,854±320$63,194$225,400$8239.2%
Tract 355105000300Janesville2,8542,719±440$49,288$123,100$97120.5%
Tract 455105000400Janesville3,7003,936±935$65,876$194,400$95313.8%
Tract 555105000500Janesville (95%)4,3474,582±633$73,311$178,700$1,09613.4%
Tract 655105000600Janesville3,3643,459±418$66,444$170,900$1,25114.0%
Tract 755105000700Janesville3,9394,204±528$62,436$217,300$1,0747.4%
Tract 855105000800Janesville3,9284,282±602$83,472$201,700$1,07710.4%
Tract 955105000900Janesville2,8783,258±425$91,175$263,500$1,2104.6%
Tract 1055105001000Janesville (97%)3,3803,047±460$49,801$137,600$1,12720.1%
Tract 1155105001100Janesville5,4234,904±594$66,600$187,800$1,3179.2%
Tract 12.0155105001201Janesville (47%)5,7096,423±745$90,597$271,300$1,2704.5%
Tract 12.0255105001202Janesville (47%)6,2805,774±504$89,012$335,200$9315.5%
Tract 13.0255105001302Janesville (59%)6,4996,342±617$83,944$267,500$1,1045.1%
Tract 13.0355105001303Janesville (50%)4,9904,683±351$124,925$354,300$1,1541.9%
Tract 13.0555105001305Janesville (92%)3,5603,923±495$104,306$330,200$1,6933.2%
Tract 13.0655105001306Janesville (98%)5,1425,054±498$54,574$253,000$9905.5%
Tract 1455105001400Janesville (50%)5,8715,760±640$87,091$207,300$89112.6%
Tract 1555105001500Beloit (97%)2,3212,316±295$46,250$119,600$79021.0%
Tract 1655105001600Beloit4,6945,601±690$58,182$108,200$95217.5%
Tract 1755105001700Beloit (94%)5,0964,928±699$52,736$136,300$1,07717.1%
Tract 1855105001800Beloit4,2494,511±725$43,966$123,400$1,01031.3%
Tract 1955105001900Beloit (84%)2,6883,026±485$84,438$182,500$1,0655.8%
Tract 2055105002000Beloit (99%)3,8373,318±490$58,190$117,100$87712.6%
Tract 2155105002100Beloit (68%)3,7663,229±286$63,507$160,000$1,0476.9%
Tract 2255105002200Beloit (23%)2,2962,012±288$86,750$237,300$8521.2%
Tract 2355105002300Beloit (21%)1,8702,152±325$40,169$112,100$9889.7%
Tract 2455105002400Beloit (3%)3,6633,680±424$85,322$235,400$1,0873.6%
Tract 2555105002500Beloit (91%)2,6462,792±536$74,464$161,600$1,23115.3%
Tract 26.0155105002601Beloit (70%)5,4705,006±442$86,543$217,900$9949.4%
Tract 26.0255105002602Beloit (47%)4,1754,530±459$92,750$279,800$1,3945.8%
Tract 2755105002700–2,4902,359±249$92,391$318,400$1,3484.0%
Tract 2855105002800Orfordville (12%)5,1644,900±357$81,129$240,500$7799.2%
Tract 29.0155105002901Evansville (34%)3,7623,866±311$87,500$316,800$8918.6%
Tract 29.0255105002902Evansville (52%)4,9725,240±385$86,240$300,800$1,1242.2%
Tract 30.0155105003001Edgerton (88%)5,3235,387±234$71,193$257,700$9539.6%
Tract 30.0255105003002Edgerton (5%)5,6925,718±378$110,724$341,700$1,1332.4%
Tract 31.0155105003101Milton (59%)2,7862,732±324$83,542$261,000$1,0182.1%
Tract 31.0255105003102Milton (65%)4,9535,009±389$86,080$278,200$9377.0%
Tract 3255105003200–2,5772,440±241$76,953$320,500$1,1338.6%
Tract 3355105003300Clinton (26%)3,5833,515±283$79,167$242,800$1,0055.4%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); place = the place holding most of the tract's 2020 census blocks · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections