Census tract · St. Clair County
Census Tract 5039.03, St. Clair County, Illinois
Census Tract 5039.03, GEOID 17163503903, in St. Clair County, Illinois, partly within Freeburg Township, Shiloh Valley Township, Belleville, Freeburg, Smithton Township, St. Clair Township, Mascoutah and Rentchler. 4,092 residents in the ACS 2020-2024 5-year estimates (±468); the 2020 Census counted 3,853.
Residents, 2020-2024
4,092
±468 (90% margin)
2020 Census count: 3,853
Median household income
$162,841
±$26,380 (90% margin)
St. Clair County: $73,854
Median home value
$352,400
±$24,898 (90% margin)
St. Clair County: $180,300
Median gross rent
not published
St. Clair County: $1,090
Where is Census Tract 5039.03?
Census Tract 5039.03 is one of 68 census tracts in St. Clair County, Illinois. It covers 27.25 square miles of land, 141 residents per square mile in 2020. Its GEOID, 17163503903, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Freeburg Township | 49% |
| Shiloh Valley Township | 20% |
| Belleville | 19% |
| Freeburg | 11% |
| Smithton Township | 8% |
| St. Clair Township | 4% |
| Mascoutah | 3% |
| Rentchler | 1% |
6 census tracts border Census Tract 5039.03: Tract 5033.04 ($66,053), Tract 5039.05 ($92,344), Tract 5039.06 ($107,321), Tract 5039.08 ($106,129), Tract 5040.02 ($78,235) and Tract 5043.56 ($115,577). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 5039.03?
The 2020-2024 American Community Survey puts Census Tract 5039.03's population at 4,092 (±468) in 1,453 households; the 2020 Census counted 3,853 residents and 1,388 housing units.
| Measure | Tract 5039.03 | St. Clair County |
|---|---|---|
| Total population | 4,092 ±468 | 253,694 |
| Households | 1,453 ±141 | 100,846 |
| Average household size | 2.74 ±0.22 | 2.47 |
| Housing units | 1,491 ±149 | 115,630 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 5039.03?
The median resident of Census Tract 5039.03 is 41.5 years old; 23.5% are under 18 and 13.2% are 65 or older. The largest group is non-Hispanic white residents at 88.3%, then non-Hispanic Black residents at 4.0%.
| Measure | Tract 5039.03 | St. Clair County |
|---|---|---|
| Median age | 41.5 ±3.3 | 39.9 |
| Under 18 years | 23.5% ±4.7 pts | 23.0% |
| 65 years and over | 13.2% ±4.0 pts | 17.3% |
| Hispanic or Latino (any race) | 2.5% ±1.7 pts | 5.1% |
| White alone, not Hispanic | 88.3% ±4.6 pts | 59.1% |
| Black or African American alone, not Hispanic | 4.0% ±3.6 pts | 27.7% |
| Asian alone, not Hispanic | 1.8% ±1.6 pts | 1.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.9 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.9 pts | 0.0% |
| Two or more races, not Hispanic | 3.1% ±1.7 pts | 5.8% |
| Some other race alone, not Hispanic | 0.3% ±0.5 pts | 0.5% |
| Born outside the United States | 2.9% ±2.2 pts | 3.3% |
| Speak a language other than English at home (age 5+) | 4.4% ±2.8 pts | 5.0% |
| Civilian veterans (age 18+) | 20.3% ±5.6 pts | 11.5% |
| With a disability | 10.1% ±3.3 pts | 15.2% |
| No health insurance coverage | 1.2% ±0.8 pts | 5.1% |
| High school graduate or higher (age 25+) | 98.9% ±1.3 pts | 93.5% |
| Bachelor's degree or higher (age 25+) | 60.4% ±6.2 pts | 31.8% |
| Graduate or professional degree (age 25+) | 28.9% ±5.3 pts | 13.8% |
| Lived in the same house a year earlier | 92.2% ±3.5 pts | 88.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 5039.03 earn?
Half of the 1,453 households in Census Tract 5039.03 earn less than $162,841 a year (±$26,380), against $73,854 across St. Clair County: 3rd highest of the county's 64 tracts with a reliable estimate.
| Measure | Tract 5039.03 | St. Clair County |
|---|---|---|
| Median household income | $162,841 ±$26,380 | $73,854 |
| Mean household income | $159,570 ±$16,513 | $96,049 |
| Per capita income | $58,089 ±$6,682 | $38,942 |
| People below the poverty line | 2.7% ±2.0 pts | 13.6% |
| Children under 18 below the poverty line | 0.8% ±1.4 pts | 18.9% |
| Households receiving SNAP | 2.2% ±3.4 pts | 16.2% |
| Households with a computer | 99.1% ±1.6 pts | 94.2% |
| Households with a broadband subscription | 96.8% ±2.6 pts | 89.7% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 5039.03?
Owners occupy 96.6% of Census Tract 5039.03's occupied homes and renters 3.4%. The median owner-occupied home is valued at $352,400 by its owner (±$24,898).
| Measure | Tract 5039.03 | St. Clair County |
|---|---|---|
| Median home value (owner-occupied) | $352,400 ±$24,898 | $180,300 |
| Renters paying 35% or more of income on rent | 0.0% ±49.7 pts | 39.8% |
| Median monthly owner costs, with a mortgage | $2,341 ±$234 | $1,645 |
| Owner-occupied homes | 96.6% ±2.8 pts | 68.4% |
| Renter-occupied homes | 3.4% ±2.8 pts | 31.6% |
| Housing units | 1,491 ±149 | 115,630 |
| Single-family detached homes | 98.7% ±1.5 pts | 72.1% |
| Mobile homes | 1.3% ±1.5 pts | 4.4% |
| Built 2020 or later | 0.0% ±2.5 pts | 0.9% |
| Built 2010 to 2019 | 16.0% ±5.9 pts | 7.3% |
| Built 1939 or earlier | 4.2% ±3.9 pts | 13.5% |
| Households with no vehicle | 0.3% ±0.5 pts | 7.5% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 5039.03 get to work?
80.8% of Census Tract 5039.03's workers drive alone and 11.2% work from home. The average trip to work takes 22.4 minutes.
| Measure | Tract 5039.03 | St. Clair County |
|---|---|---|
| In the labor force (age 16+) | 72.3% ±4.9 pts | 63.4% |
| Unemployment rate | 2.7% ±1.8 pts | 6.0% |
| Drove alone to work | 80.8% ±6.6 pts | 75.4% |
| Carpooled | 4.4% ±2.8 pts | 8.1% |
| Public transportation | 0.0% ±1.7 pts | 1.6% |
| Walked | 2.3% ±3.0 pts | 1.5% |
| Worked from home | 11.2% ±4.3 pts | 12.4% |
| Mean travel time to work | 22.4 min ±3.4 | 24.0 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 5039.03 compare with the other tracts in St. Clair County?
Among St. Clair County's tracts with a reliable estimate, Census Tract 5039.03 ranks as shown below (1 = highest).
| Measure | In St. Clair County |
|---|---|
| Population | 29th of 68 |
| Residents per square mile | 62nd of 68 |
| Median household income | 3rd of 64 |
| Per capita income | 4th of 67 |
| Median home value | 3rd of 61 |
| Bachelor's degree or higher | 4th of 59 |
| Median age | 29th of 66 |
| Owner-occupied share | 2nd of 67 |
The tracts next to it on St. Clair County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 5043.53 | 1st | $179,261±$38,958 · within the margin of this tract |
| Tract 5038 | 2nd | $168,700±$17,494 · within the margin of this tract |
| Tract 5039.03 | 3rd | $162,841±$26,380 |
| Tract 5034.04 | 4th | $161,276±$22,528 · within the margin of this tract |
| Tract 5033.23 | 5th | $145,729±$14,046 · within the margin of this tract |
| Tract 5043.55 | 6th | $143,333±$24,517 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 5039.03?
4 of the 17 figures for Census Tract 5039.03 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections