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Census Tract 4, Rock, WI

3,936 Population
1.3 square miles 2,919 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

38.4 ±6.2 Median age
  • a little less than the figure in Janesville: 40.7 ±1.2
  • a little less than the figure in Rock County: 40.3 ±0.3
  • a little less than the figure in Wisconsin: 40.2 ±0.1

Economics

$31,951 ±$3,263 Per capita income
  • about 80 percent of the amount in Janesville: $37,762 ±$1,423
  • about 80 percent of the amount in Rock County: $38,536 ±$1,081
  • about three-quarters of the amount in Wisconsin: $43,373 ±$237
$65,876 ±$15,253 Median household income
  • about 90 percent of the amount in Janesville: $73,446 ±$3,826
  • about 90 percent of the amount in Rock County: $75,673 ±$2,128
  • about 80 percent of the amount in Wisconsin: $77,485 ±$455

13.8% ±4.7% (542  ±225) Persons below poverty line
  • about 1.5 times the rate in Janesville: 9% † 5,910 (±1.3% / ±870)
  • about 1.5 times the rate in Rock County: 9.3% 14,980 (±0.7% / ±1,167)
  • about 1.3 times the rate in Wisconsin: 10.6% 610,030 (±0.2% / ±8,470)

20.5 minutes ±8.3 (37,820  ±9,975) Mean travel time to work
  • a little less than the figure in Janesville: 21.9 659,960 (±0.9 / ±35,888)
  • about 90 percent of the figure in Rock County: 23.8 1,764,135 (±0.6 / ±55,344)
  • about 90 percent of the figure in Wisconsin: 22.2 57,625,472 (±0.1 / ±288,608)

Families

1,598 ±253 Number of households
  • Janesville: 28,326 ±635
  • Rock County: 67,201 ±481
  • Wisconsin: 2,479,480 ±5,787
2.5 ±0.4 (3,923  ±935) Persons per household
  • about 10 percent higher than the figure in Janesville: 2.3 65,229 (±0.1 / ±69)
  • about the same as the figure in Rock County: 2.4 161,670 (±0 / ±111)
  • a little higher than the figure in Wisconsin: 2.3 5,774,449

7.8% ±8% (79  ±84) Women 15-50 who gave birth during past year
  • about 1.3 times the rate in Janesville: 5.8% † 893 (±1.3% / ±201)
  • about 1.3 times the rate in Rock County: 5.9% † 2,141 (±0.9% / ±326)
  • about 1.5 times the rate in Wisconsin: 4.9% 64,374 (±0.2% / ±1,985)

Housing

1,788 ±235 Number of housing units
  • Janesville: 29,330 ±557
  • Rock County: 71,109 ±90
  • Wisconsin: 2,778,572 ±1,533

$194,400 ±$30,414 Median value of owner-occupied housing units
  • about 90 percent of the amount in Janesville: $223,400 ±$4,913
  • about 80 percent of the amount in Rock County: $231,600 ±$3,637
  • about three-quarters of the amount in Wisconsin: $266,500 ±$1,051

7.7% ±5.9% (301  ±243) Moved since previous year
  • about 80 percent of the rate in Janesville: 9.3% † 6,053 (±1.4% / ±882.5)
  • about 80 percent of the rate in Rock County: 9.4% 15,320 (±0.9% / ±1,406)
  • about two-thirds of the rate in Wisconsin: 11.8% 688,830 (±0.2% / ±8,943.9)

Social

92.1% ±25% (2,342  ±446.8) High school grad or higher
  • about the same as the rate in Janesville: 94.4% 43,802 (±3.3% / ±1,630.4)
  • about the same as the rate in Rock County: 92.6% 105,368 (±2% / ±2,267.5)
  • about the same as the rate in Wisconsin: 93.6% 3,835,965 (±0.3% / ±13,109.8)
25.2% ±11.3% (640  ±312) Bachelor's degree or higher
  • about 90 percent of the rate in Janesville: 27.3% 12,677 (±1.9% / ±902.7)
  • a little less than the rate in Rock County: 25.8% 29,358 (±1.1% / ±1,224.3)
  • about three-quarters of the rate in Wisconsin: 33.4% 1,368,736 (±0.2% / ±7,930)

N/A Persons with language other than English spoken at home

4.4% ±4.9% (172  ±197) Foreign-born population
  • about 10 percent higher than the rate in Janesville: 3.8% † 2,535 (±0.7% / ±461)
  • a little less than the rate in Rock County: 4.6% 7,554
  • about 80 percent of the rate in Wisconsin: 5.2% 306,979

4.3% ±2.6% (125  ±78) Population with veteran status
  • about two-thirds of the rate in Janesville: 6.7% † 3,477 (±0.7% / ±358)
  • about three-fifths of the rate in Rock County: 6.9% 8,848 (±0.5% / ±593)
  • about two-thirds of the rate in Wisconsin: 6.2% 288,078 (±0.1% / ±3,278)
125 Total veterans ±78 125 Male ±78 N/A Female ±10

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