Census tract · Winnebago County
Census Tract 36.04, Winnebago County, Illinois
Census Tract 36.04, GEOID 17201003604, in Winnebago County, Illinois, entirely within Rockford and Rockford Township. 2,865 residents in the ACS 2020-2024 5-year estimates (±485); the 2020 Census counted 3,080.
Residents, 2020-2024
2,865
±485 (90% margin)
2020 Census count: 3,080
Median household income
$53,914
±$12,945 (90% margin)
Winnebago County: $65,837
Median home value
$105,900
±$12,852 (90% margin)
Winnebago County: $164,500
Median gross rent
$986
±$173 (90% margin)
Winnebago County: $1,021
Where is Census Tract 36.04?
Census Tract 36.04 is one of 80 census tracts in Winnebago County, Illinois. It covers 0.51 square miles of land, 6,099 residents per square mile in 2020. Its GEOID, 17201003604, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Rockford | 100% |
| Rockford Township | 100% |
4 census tracts border Census Tract 36.04: Tract 34 ($60,712), Tract 36.02 ($42,138), Tract 36.05 ($34,091) and Tract 36.06 ($49,705). 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 36.04?
The 2020-2024 American Community Survey puts Census Tract 36.04's population at 2,865 (±485) in 1,159 households; the 2020 Census counted 3,080 residents and 1,375 housing units.
| Measure | Tract 36.04 | Rockford |
|---|---|---|
| Total population | 2,865 ±485 | 147,521 |
| Households | 1,159 ±127 | 61,324 |
| Average household size | 2.47 ±0.37 | 2.34 |
| Housing units | 1,204 ±134 | 67,423 |
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 36.04?
The median resident of Census Tract 36.04 is 40.9 years old; 25.5% are under 18 and 21.9% are 65 or older. The largest group is non-Hispanic white residents at 43.6%, then non-Hispanic Black residents at 27.7%.
| Measure | Tract 36.04 | Rockford |
|---|---|---|
| Median age | 40.9 ±14.8 | 37.7 |
| Under 18 years | 25.5% ±5.9 pts | 24.2% |
| 65 years and over | 21.9% ±7.5 pts | 17.8% |
| Hispanic or Latino (any race) | 16.7% ±4.8 pts | 21.6% |
| White alone, not Hispanic | 43.6% ±7.2 pts | 49.6% |
| Black or African American alone, not Hispanic | 27.7% ±10.2 pts | 19.2% |
| Asian alone, not Hispanic | 0.0% ±1.3 pts | 3.7% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.3 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.3 pts | 0.0% |
| Two or more races, not Hispanic | 12.0% ±7.9 pts | 5.5% |
| Some other race alone, not Hispanic | 0.0% ±1.3 pts | 0.3% |
| Born outside the United States | 8.5% ±6.8 pts | 12.6% |
| Speak a language other than English at home (age 5+) | 15.2% ±6.7 pts | 22.1% |
| Civilian veterans (age 18+) | 8.5% ±4.8 pts | 5.6% |
| With a disability | 14.8% ±5.1 pts | 17.5% |
| No health insurance coverage | 9.8% ±8.3 pts | 7.2% |
| High school graduate or higher (age 25+) | 78.3% ±8.2 pts | 84.9% |
| Bachelor's degree or higher (age 25+) | 13.8% ±5.8 pts | 23.5% |
| Graduate or professional degree (age 25+) | 5.8% ±4.1 pts | 9.0% |
| Lived in the same house a year earlier | 87.9% ±7.8 pts | 85.2% |
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 36.04 earn?
Half of the 1,159 households in Census Tract 36.04 earn less than $53,914 a year (±$12,945), against $65,837 across Winnebago County: 48th highest of the county's 78 tracts with a reliable estimate. 22.7% of residents live below the poverty line.
| Measure | Tract 36.04 | Rockford |
|---|---|---|
| Median household income | $53,914 ±$12,945 | $54,752 |
| Mean household income | $57,636 ±$6,151 | $74,515 |
| Per capita income | $22,976 ±$3,748 | $31,263 |
| People below the poverty line | 22.7% ±11.1 pts | 21.3% |
| Children under 18 below the poverty line | 29.0% ±24.2 pts | 30.6% |
| Households receiving SNAP | 23.7% ±10.5 pts | 27.9% |
| Households with a computer | 88.3% ±8.6 pts | 92.4% |
| Households with a broadband subscription | 78.0% ±10.2 pts | 86.6% |
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 36.04?
Owners occupy 64.9% of Census Tract 36.04's occupied homes and renters 35.1%. The median owner-occupied home is valued at $105,900 by its owner (±$12,852). The median renter pays $986 a month including utilities, and 38.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 36.04 | Rockford |
|---|---|---|
| Median home value (owner-occupied) | $105,900 ±$12,852 | $129,000 |
| Median gross rent | $986 ±$173 | $985 |
| Renters paying 35% or more of income on rent | 38.1% ±15.4 pts | 45.0% |
| Median monthly owner costs, with a mortgage | $1,173 ±$160 | $1,279 |
| Owner-occupied homes | 64.9% ±10.2 pts | 54.9% |
| Renter-occupied homes | 35.1% ±10.2 pts | 45.1% |
| Housing units | 1,204 ±134 | 67,423 |
| Single-family detached homes | 77.3% ±7.9 pts | 61.5% |
| Mobile homes | 0.0% ±3.1 pts | 0.6% |
| Built 2020 or later | 0.0% ±3.1 pts | 0.1% |
| Built 2010 to 2019 | 1.4% ±1.6 pts | 1.5% |
| Built 1939 or earlier | 1.3% ±1.6 pts | 22.4% |
| Households with no vehicle | 5.4% ±4.1 pts | 12.7% |
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 36.04 get to work?
74.9% of Census Tract 36.04's workers drive alone. The average trip to work takes 30.0 minutes.
| Measure | Tract 36.04 | Rockford |
|---|---|---|
| In the labor force (age 16+) | 56.6% ±7.4 pts | 59.3% |
| Unemployment rate | 10.2% ±7.0 pts | 8.5% |
| Drove alone to work | 74.9% ±10.3 pts | 74.3% |
| Carpooled | 7.9% ±5.6 pts | 11.7% |
| Public transportation | 0.0% ±3.3 pts | 1.0% |
| Walked | 9.5% ±9.7 pts | 1.3% |
| Worked from home | 7.6% ±7.5 pts | 10.1% |
| Mean travel time to work | 30.0 min ±9.2 | 21.9 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 36.04 compare with the other tracts in Winnebago County?
Among Winnebago County's tracts with a reliable estimate, Census Tract 36.04 ranks as shown below (1 = highest).
| Measure | In Winnebago County | In Rockford |
|---|---|---|
| Population | 47th of 79 | 26th of 53 |
| Residents per square mile | 3rd of 80 | 3rd of 54 |
| Median household income | 48th of 78 | 25th of 52 |
| Per capita income | 65th of 78 | 39th of 52 |
| Median home value | 56th of 78 | 31st of 52 |
| Median gross rent | 43rd of 77 | 28th of 53 |
| Poverty rate | 27th of 69 | 24th of 48 |
| Bachelor's degree or higher | 55th of 71 | 32nd of 45 |
| Median age | 35th of 79 | 25th of 53 |
| Owner-occupied share | 44th of 78 | 23rd of 52 |
The tracts next to it on Winnebago County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 40.03 | 45th | $57,420±$5,270 · within the margin of this tract |
| Tract 3 | 46th | $56,776±$3,111 · within the margin of this tract |
| Tract 17 | 47th | $56,444±$13,613 · within the margin of this tract |
| Tract 36.04 | 48th | $53,914±$12,945 |
| Tract 38.09 | 49th | $53,192±$3,933 · within the margin of this tract |
| Tract 1.04 | 50th | $52,796±$7,111 · within the margin of this tract |
| Tract 5.02 | 51st | $52,720±$16,240 · 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 36.04?
2 of the 18 figures for Census Tract 36.04 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