Census tract · LaSalle County
Census Tract 9639, LaSalle County, Illinois
Census Tract 9639, GEOID 17099963900, in LaSalle County, Illinois, mostly within Bruce Township (71% of its census blocks). 4,461 residents in the ACS 2020-2024 5-year estimates (±519); the 2020 Census counted 4,919.
Residents, 2020-2024
4,461
±519 (90% margin)
2020 Census count: 4,919
Median household income
$45,638
±$7,554 (90% margin)
LaSalle County: $73,045
Median home value
$118,600
±$14,461 (90% margin)
LaSalle County: $161,900
Median gross rent
$813
±$80 (90% margin)
LaSalle County: $928
Where is Census Tract 9639?
Census Tract 9639 is one of 28 census tracts in LaSalle County, Illinois. It covers 9.42 square miles of land, 522 residents per square mile in 2020. Its GEOID, 17099963900, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Bruce Township | 71% |
| Streator | 67% |
| Eagle Township | 29% |
| Kangley | 9% |
5 census tracts border Census Tract 9639: Tract 9638 ($57,477), Tract 9641 ($76,313), Tract 9642 ($68,708), Tract 9643 ($52,010) and Tract 9603 in Livingston County ($73,429). 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 9639?
The 2020-2024 American Community Survey puts Census Tract 9639's population at 4,461 (±519) in 2,148 households; the 2020 Census counted 4,919 residents and 2,370 housing units.
| Measure | Tract 9639 | Bruce Township |
|---|---|---|
| Total population | 4,461 ±519 | 11,794 |
| Households | 2,148 ±246 | 5,341 |
| Average household size | 2.04 ±0.18 | 2.19 |
| Housing units | 2,478 ±224 | 5,999 |
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 9639?
The median resident of Census Tract 9639 is 38.2 years old; 21.1% are under 18 and 30.1% are 65 or older. The largest group is non-Hispanic white residents at 84.8%, then Hispanic or Latino residents (of any race) at 11.9%.
| Measure | Tract 9639 | Bruce Township |
|---|---|---|
| Median age | 38.2 ±10.7 | 37.3 |
| Under 18 years | 21.1% ±5.3 pts | 20.9% |
| 65 years and over | 30.1% ±6.5 pts | 21.7% |
| Hispanic or Latino (any race) | 11.9% ±6.4 pts | 17.7% |
| White alone, not Hispanic | 84.8% ±6.6 pts | 75.0% |
| Black or African American alone, not Hispanic | 2.4% ±1.8 pts | 3.9% |
| Asian alone, not Hispanic | 0.0% ±0.8 pts | 0.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 0.9% ±0.8 pts | 3.2% |
| Some other race alone, not Hispanic | 0.0% ±0.1 pts | 0.0% |
| Born outside the United States | 1.3% ±2.1 pts | 4.2% |
| Speak a language other than English at home (age 5+) | 4.6% ±3.6 pts | 9.3% |
| Civilian veterans (age 18+) | 7.6% ±4.0 pts | 8.6% |
| With a disability | 15.7% ±4.8 pts | 16.6% |
| No health insurance coverage | 0.2% ±0.3 pts | 3.5% |
| High school graduate or higher (age 25+) | 89.1% ±5.8 pts | 89.3% |
| Bachelor's degree or higher (age 25+) | 18.2% ±7.4 pts | 12.4% |
| Graduate or professional degree (age 25+) | 3.9% ±2.5 pts | 3.0% |
| Lived in the same house a year earlier | 97.3% ±1.8 pts | 91.0% |
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 9639 earn?
Half of the 2,148 households in Census Tract 9639 earn less than $45,638 a year (±$7,554), against $73,045 across LaSalle County: 27th highest of the county's 28 tracts with a reliable estimate. 16.8% of residents live below the poverty line.
| Measure | Tract 9639 | Bruce Township |
|---|---|---|
| Median household income | $45,638 ±$7,554 | $53,477 |
| Mean household income | $68,485 ±$14,411 | $70,683 |
| Per capita income | $34,243 ±$6,456 | $32,692 |
| People below the poverty line | 16.8% ±7.5 pts | 22.2% |
| Children under 18 below the poverty line | 19.6% ±14.8 pts | 37.0% |
| Households receiving SNAP | 10.8% ±6.7 pts | 18.2% |
| Households with a computer | 87.6% ±7.4 pts | 92.7% |
| Households with a broadband subscription | 80.7% ±8.2 pts | 87.4% |
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 9639?
Owners occupy 63.5% of Census Tract 9639's occupied homes and renters 36.5%. The median owner-occupied home is valued at $118,600 by its owner (±$14,461). The median renter pays $813 a month including utilities, and 31.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 9639 | Bruce Township |
|---|---|---|
| Median home value (owner-occupied) | $118,600 ±$14,461 | $94,200 |
| Median gross rent | $813 ±$80 | $872 |
| Renters paying 35% or more of income on rent | 31.6% ±18.7 pts | 34.5% |
| Median monthly owner costs, with a mortgage | $1,252 ±$164 | $1,058 |
| Owner-occupied homes | 63.5% ±10.7 pts | 61.2% |
| Renter-occupied homes | 36.5% ±10.7 pts | 38.8% |
| Housing units | 2,478 ±224 | 5,999 |
| Single-family detached homes | 68.4% ±9.3 pts | 73.1% |
| Mobile homes | 1.8% ±2.1 pts | 1.5% |
| Built 2020 or later | 0.0% ±1.5 pts | 0.0% |
| Built 2010 to 2019 | 2.7% ±3.5 pts | 1.8% |
| Built 1939 or earlier | 15.9% ±6.0 pts | 31.9% |
| Households with no vehicle | 4.4% ±3.2 pts | 6.3% |
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 9639 get to work?
88.4% of Census Tract 9639's workers drive alone. The average trip to work takes 24.8 minutes.
| Measure | Tract 9639 | Bruce Township |
|---|---|---|
| In the labor force (age 16+) | 49.6% ±6.8 pts | 60.5% |
| Unemployment rate | 9.9% ±7.0 pts | 9.4% |
| Drove alone to work | 88.4% ±8.1 pts | 84.0% |
| Carpooled | 7.5% ±6.7 pts | 5.9% |
| Public transportation | 0.0% ±2.3 pts | 0.3% |
| Walked | 1.8% ±2.5 pts | 3.1% |
| Worked from home | 1.5% ±2.1 pts | 5.6% |
| Mean travel time to work | 24.8 min ±5.9 | 28.0 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 9639 compare with the other tracts in LaSalle County?
Among LaSalle County's tracts with a reliable estimate, Census Tract 9639 ranks as shown below (1 = highest).
| Measure | In LaSalle County |
|---|---|
| Population | 9th of 28 |
| Residents per square mile | 12th of 28 |
| Median household income | 27th of 28 |
| Per capita income | 21st of 28 |
| Median home value | 21st of 28 |
| Median gross rent | 24th of 26 |
| Poverty rate | 9th of 27 |
| Bachelor's degree or higher | 17th of 26 |
| Median age | 23rd of 28 |
| Owner-occupied share | 25th of 28 |
The tracts next to it on LaSalle County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 9627 | 24th | $55,982±$24,024 · within the margin of this tract |
| Tract 9620 | 25th | $53,050±$24,279 · within the margin of this tract |
| Tract 9643 | 26th | $52,010±$14,658 · within the margin of this tract |
| Tract 9639 | 27th | $45,638±$7,554 |
| Tract 9633 | 28th | $42,361±$14,346 · 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 9639?
3 of the 18 figures for Census Tract 9639 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