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St. Clair township, St. Clair County, IL

35,601 Population
20.4 square miles 1,748.6 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

42.4 ±1.4 Median age
  • a little higher than the figure in St. Clair County: 39.9 ±0.3
  • about 10 percent higher than the figure in Illinois: 39 ±0.1
  • about 10 percent higher than the figure in United States: 38.9 ±0.1

Economics

$42,898 ±$2,299 Per capita income
  • about 10 percent higher than the amount in St. Clair County: $38,942 ±$708
  • about 90 percent of the amount in Illinois: $46,406 ±$212
  • a little less than the amount in United States: $44,673 ±$122
$80,309 ±$5,616 Median household income
  • about 10 percent higher than the amount in St. Clair County: $73,854 ±$1,990
  • a little less than the amount in Illinois: $83,390 ±$362
  • about the same as the amount in United States: $80,734 ±$166

11.7% ±2.2% (4,144  ±764) Persons below poverty line
  • about 90 percent of the rate in St. Clair County: 13.6% 33,710 (±0.9% / ±2,344)
  • about the same as the rate in Illinois: 11.8% 1,464,937 (±0.2% / ±18,161)
  • a little less than the rate in United States: 12.5% 40,735,660 (±0.1% / ±275,861)

23.5 minutes ±1.6 (367,815  ±34,987) Mean travel time to work
  • about the same as the figure in St. Clair County: 24 2,478,880 (±0.6 / ±71,690)
  • about 80 percent of the figure in Illinois: 27.8 143,793,920 (±0.1 / ±595,293)
  • about 90 percent of the figure in United States: 26.4 3,569,606,700 (±0 / ±5,719,373)

Families

14,902 ±543 Number of households
  • St. Clair County: 100,846 ±1,013
  • Illinois: 5,036,449 ±8,009
  • United States: 129,227,496 ±209,365
2.4 ±0.1 (35,379  ±57) Persons per household
  • a little less than the figure in St. Clair County: 2.5 248,871 (±0 / ±78)
  • a little less than the figure in Illinois: 2.5 12,405,980
  • a little less than the figure in United States: 2.5 326,722,430

5.1% ±1.8% (391  ±142) Women 15-50 who gave birth during past year
  • about 90 percent of the rate in St. Clair County: 5.9% † 3,480 (±0.9% / ±554)
  • a little higher than the rate in Illinois: 4.9% 147,208 (±0.1% / ±3,564)
  • about the same as the rate in United States: 5.1% 4,009,203 (±0% / ±20,898)

Housing

15,795 ±526 Number of housing units
  • St. Clair County: 115,630 ±82
  • Illinois: 5,457,452 ±471
  • United States: 143,775,360 ±10,234

$202,000 ±$11,632 Median value of owner-occupied housing units
  • about 10 percent higher than the amount in St. Clair County: $180,300 ±$5,056
  • about three-quarters of the amount in Illinois: $263,300 ±$797
  • about three-fifths of the amount in United States: $332,700 ±$236

11.5% ±2.6% (4,069  ±900.4) Moved since previous year
  • about the same as the rate in St. Clair County: 11.7% 29,337 (±1% / ±2,480.5)
  • a little higher than the rate in Illinois: 11.1% 1,396,426 (±0.1% / ±14,640.6)
  • a little less than the rate in United States: 12.3% 40,747,183 (±0% / ±136,530.8)

Social

94.6% ±5% (23,892  ±1,412.9) High school grad or higher
  • about the same as the rate in St. Clair County: 93.5% 163,227 (±1.8% / ±3,194.1)
  • a little higher than the rate in Illinois: 90.5% 7,931,250 (±0.3% / ±22,974.6)
  • a little higher than the rate in United States: 89.6% 206,814,894 (±0.1% / ±283,951.7)
35.8% ±3% (9,041  ±805.4) Bachelor's degree or higher
  • about 10 percent higher than the rate in St. Clair County: 31.8% 55,532 (±1% / ±1,716.3)
  • a little less than the rate in Illinois: 37.9% 3,318,149 (±0.2% / ±14,295.2)
  • about the same as the rate in United States: 35.7% 82,363,217 (±0.1% / ±182,857.7)

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

4.1% ±1% (1,446  ±352) Foreign-born population
  • about 25 percent higher than the rate in St. Clair County: 3.3% 8,330
  • about one-quarter of the rate in Illinois: 14.8% 1,872,449
  • about one-quarter of the rate in United States: 14.1% 47,349,080

11.5% ±1.4% (3,222  ±401) Population with veteran status
  • about the same as the rate in St. Clair County: 11.5% 21,939 (±0.6% / ±1,089)
  • more than double the rate in Illinois: 4.8% 478,196 (±0.1% / ±4,766)
  • nearly double the rate in United States: 6.2% 16,185,883 (±0% / ±45,251)
3,222 Total veterans ±401 2,959 Male ±381 263 Female ±117

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