Census tract · Grundy County
Census Tract 1.03, Grundy County, Illinois
Census Tract 1.03, GEOID 17063000103, in Grundy County, Illinois, mostly within Aux Sable Township (77% of its census blocks). 7,337 residents in the ACS 2020-2024 5-year estimates (±623); the 2020 Census counted 7,593.
Residents, 2020-2024
7,337
±623 (90% margin)
2020 Census count: 7,593
Median household income
$108,803
±$7,992 (90% margin)
Grundy County: $92,235
Median home value
$309,000
±$27,542 (90% margin)
Grundy County: $271,700
Median gross rent
$1,600
±$147 (90% margin)
Grundy County: $1,177
Where is Census Tract 1.03?
Census Tract 1.03 is one of 10 census tracts in Grundy County, Illinois. It covers 17.59 square miles of land, 432 residents per square mile in 2020. Its GEOID, 17063000103, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Aux Sable Township | 77% |
| Channahon | 35% |
| Morris Township | 13% |
| Saratoga Township, Grundy County | 11% |
| Morris | 10% |
| Minooka | 9% |
8 census tracts border Census Tract 1.03: Tract 1.02 ($104,547), Tract 2 ($95,813), Tract 3 ($82,214), Tract 4 ($74,167), Tract 5 ($106,161), Tract 7 ($79,357), Tract 8833.03 in Will County ($150,109) and Tract 8833.06 in Will County ($115,481). 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 1.03?
The 2020-2024 American Community Survey puts Census Tract 1.03's population at 7,337 (±623) in 2,666 households; the 2020 Census counted 7,593 residents and 2,660 housing units.
| Measure | Tract 1.03 | Aux Sable Township |
|---|---|---|
| Total population | 7,337 ±623 | 15,630 |
| Households | 2,666 ±257 | 5,293 |
| Average household size | 2.75 ±0.24 | 2.95 |
| Housing units | 2,666 ±257 | 5,410 |
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 1.03?
The median resident of Census Tract 1.03 is 32.2 years old; 26.5% are under 18 and 8.8% are 65 or older. The largest group is non-Hispanic white residents at 71.8%, then Hispanic or Latino residents (of any race) at 19.2%. 4.0% of residents were born outside the United States.
| Measure | Tract 1.03 | Aux Sable Township |
|---|---|---|
| Median age | 32.2 ±1.6 | 32.0 |
| Under 18 years | 26.5% ±2.9 pts | 27.9% |
| 65 years and over | 8.8% ±1.8 pts | 8.6% |
| Hispanic or Latino (any race) | 19.2% ±5.3 pts | 18.9% |
| White alone, not Hispanic | 71.8% ±6.5 pts | 74.5% |
| Black or African American alone, not Hispanic | 5.9% ±3.6 pts | 4.2% |
| Asian alone, not Hispanic | 0.6% ±0.9 pts | 0.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Two or more races, not Hispanic | 2.2% ±1.9 pts | 1.7% |
| Some other race alone, not Hispanic | 0.0% ±0.5 pts | 0.2% |
| Born outside the United States | 4.0% ±2.6 pts | 6.8% |
| Speak a language other than English at home (age 5+) | 10.7% ±4.9 pts | 13.2% |
| Civilian veterans (age 18+) | 2.9% ±1.5 pts | 3.7% |
| With a disability | 4.7% ±2.0 pts | 4.9% |
| No health insurance coverage | 1.5% ±1.4 pts | 1.5% |
| High school graduate or higher (age 25+) | 96.4% ±2.1 pts | 93.8% |
| Bachelor's degree or higher (age 25+) | 30.9% ±6.6 pts | 28.6% |
| Graduate or professional degree (age 25+) | 13.4% ±4.6 pts | 9.4% |
| Lived in the same house a year earlier | 87.3% ±5.1 pts | 89.2% |
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 1.03 earn?
Half of the 2,666 households in Census Tract 1.03 earn less than $108,803 a year (±$7,992), against $92,235 across Grundy County: 1st highest of the county's 10 tracts with a reliable estimate.
| Measure | Tract 1.03 | Aux Sable Township |
|---|---|---|
| Median household income | $108,803 ±$7,992 | $109,269 |
| Mean household income | $123,422 ±$10,943 | $131,238 |
| Per capita income | $45,628 ±$4,960 | $44,185 |
| People below the poverty line | 5.3% ±3.9 pts | 3.9% |
| Children under 18 below the poverty line | 4.9% ±5.4 pts | 2.9% |
| Households receiving SNAP | 4.8% ±2.9 pts | 5.6% |
| Households with a computer | 96.9% ±3.1 pts | 97.8% |
| Households with a broadband subscription | 94.5% ±4.9 pts | 95.9% |
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 1.03?
Owners occupy 82.1% of Census Tract 1.03's occupied homes and renters 17.9%. The median owner-occupied home is valued at $309,000 by its owner (±$27,542). The median renter pays $1,600 a month including utilities, and 33.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 1.03 | Aux Sable Township |
|---|---|---|
| Median home value (owner-occupied) | $309,000 ±$27,542 | $321,100 |
| Median gross rent | $1,600 ±$147 | $1,504 |
| Renters paying 35% or more of income on rent | 33.3% ±20.2 pts | 44.7% |
| Median monthly owner costs, with a mortgage | $2,167 ±$136 | $2,193 |
| Owner-occupied homes | 82.1% ±5.6 pts | 85.1% |
| Renter-occupied homes | 17.9% ±5.6 pts | 14.9% |
| Housing units | 2,666 ±257 | 5,410 |
| Single-family detached homes | 66.1% ±6.2 pts | 73.4% |
| Mobile homes | 0.0% ±1.4 pts | 6.2% |
| Built 2020 or later | 6.0% ±4.3 pts | 3.2% |
| Built 2010 to 2019 | 16.6% ±6.9 pts | 17.5% |
| Built 1939 or earlier | 2.0% ±2.0 pts | 2.9% |
| Households with no vehicle | 4.2% ±3.2 pts | 2.5% |
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 1.03 get to work?
82.9% of Census Tract 1.03's workers drive alone and 11.3% work from home. The average trip to work takes 31.3 minutes. The unemployment rate in 2020-2024 averaged 6.6%.
| Measure | Tract 1.03 | Aux Sable Township |
|---|---|---|
| In the labor force (age 16+) | 79.8% ±4.0 pts | 76.5% |
| Unemployment rate | 6.6% ±4.1 pts | 6.0% |
| Drove alone to work | 82.9% ±4.8 pts | 82.1% |
| Carpooled | 5.3% ±3.2 pts | 4.8% |
| Public transportation | 0.5% ±0.8 pts | 0.7% |
| Walked | 0.0% ±0.9 pts | 0.1% |
| Worked from home | 11.3% ±4.4 pts | 11.9% |
| Mean travel time to work | 31.3 min ±3.5 | 31.0 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 1.03 compare with the other tracts in Grundy County?
Among Grundy County's tracts with a reliable estimate, Census Tract 1.03 ranks as shown below (1 = highest).
| Measure | In Grundy County |
|---|---|
| Population | 2nd of 10 |
| Residents per square mile | 4th of 10 |
| Median household income | 1st of 10 |
| Per capita income | 3rd of 10 |
| Median home value | 2nd of 10 |
| Median gross rent | 1st of 10 |
| Bachelor's degree or higher | 1st of 10 |
| Median age | 10th of 10 |
| Owner-occupied share | 4th of 10 |
The tracts next to it on Grundy County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1.03 | 1st | $108,803±$7,992 |
| Tract 5 | 2nd | $106,161±$13,307 · within the margin of this tract |
| Tract 1.02 | 3rd | $104,547±$14,051 · within the margin of this tract |
| Tract 2 | 4th | $95,813±$12,946 · 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 1.03?
2 of the 18 figures for Census Tract 1.03 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