City · Illinois
Joliet, Illinois
Joliet, city, mostly in Will County (90.7% of its 2020 residents), with a part in Kendall County, Illinois. Joliet had 152,241 residents on July 1, 2025 by the Census Bureau's estimate, up 1.2% since 2020; the 2020 Census counted 150,362 and the ACS 2020-2024 5-year estimates put it at 150,445 (±889). GEOID 1738570.
Residents, July 2025 estimate
152,241
Census Bureau estimate (no margin published)
2020 Census count: 150,362 · ACS 2020-2024: 150,445 ±889
Median household income
$92,201
±$3,443 (90% margin)
Illinois: $83,390
Median home value
$265,800
±$3,594 (90% margin)
Illinois: $263,300
Median gross rent
$1,276
±$48 (90% margin)
Illinois: $1,274
Where is Joliet and what county is it in?
Joliet is a city mostly in Will County (90.7% of its 2020 residents), with a part in Kendall County, Illinois. It covers 66.3 square miles of land, 2,268 residents per square mile in 2020.
Joliet is in the Chicago-Naperville-Elgin, IL-IN metropolitan statistical area, which takes in 13 counties (Census Bureau delineation, July 2023).
Joliet lies mostly within Joliet Township and reaches into Plainfield Township, Troy Township, Na-Au-Say Township, Seward Township (Kendall County), Jackson Township (Will County) and New Lenox Township, towns or townships with their own local government (2020 census blocks).
| County | 2020 residents | Share |
|---|---|---|
| Will County | 136,315 | 90.7% |
| Kendall County | 14,047 | 9.3% |
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Joliet, and is it growing?
The Census Bureau estimates that 152,241 people lived in Joliet on July 1, 2025, up 1.2% since 2020, while Illinois shrank 0.8%. The 2020 Census counted 150,362 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 150,445 (±889).
| Measure | Joliet | Will County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 150,445 ±889 | 701,462 | +2,619 |
| Households | 51,055 ±807 | 244,273 | +3,492 |
| Average household size | 2.89 ±0.05 | 2.84 | −0.16 |
| Housing units | 53,814 ±734 | 254,278 | +2,678 |
Joliet's population since 2000
From 106,221 in 2000 to 152,241 in 2025: up 43.3%. The 2000, 2010 and 2020 figures are census counts, each for Joliet as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Joliet?
The median resident of Joliet is 35.8 years old; 24.4% are under 18 and 11.5% are 65 or older. The largest group is non-Hispanic white residents at 44.0%, then Hispanic or Latino residents (of any race) at 34.2%. 15.5% of residents were born outside the United States.
| Measure | Joliet | Will County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 35.8 ±0.7 | 39.1 | +2.0 |
| Under 18 years | 24.4% ±0.5 pts | 23.6% | – |
| 65 years and over | 11.5% ±0.7 pts | 14.6% | – |
| Male | 50.4% ±0.7 pts | 49.9% | – |
| Hispanic or Latino (any race) | 34.2% ±1.2 pts | 19.8% | +3.2 pts |
| White alone, not Hispanic | 44.0% ±1.1 pts | 58.6% | −3.8 pts |
| Black or African American alone, not Hispanic | 16.0% ±1.1 pts | 11.6% | no clear change |
| Asian alone, not Hispanic | 2.4% ±0.5 pts | 6.3% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.1% ±0.5 pts | 3.4% | – |
| Some other race alone, not Hispanic | 0.2% ±0.1 pts | 0.4% | – |
| Born outside the United States | 15.5% ±0.8 pts | 13.5% | no clear change |
| Speak a language other than English at home (age 5+) | 28.8% ±1.4 pts | 22.4% | – |
| Civilian veterans (age 18+) | 4.5% ±0.5 pts | 4.8% | – |
| With a disability | 10.5% ±0.6 pts | 10.0% | – |
| No health insurance coverage | 8.1% ±0.7 pts | 5.2% | no clear change |
| High school graduate or higher (age 25+) | 85.3% ±1.0 pts | 91.8% | – |
| Bachelor's degree or higher (age 25+) | 25.5% ±1.1 pts | 37.5% | +3.4 pts |
| Graduate or professional degree (age 25+) | 10.0% ±0.9 pts | 14.9% | – |
| Lived in the same house a year earlier | 91.1% ±0.8 pts | 92.1% | – |
| Moved from another state in the past year | 0.7% ±0.2 pts | 0.8% | – |
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 Joliet earn?
Half of Joliet's 51,055 households earn less than $92,201 a year (±$3,443), against $109,984 in Will County and $83,390 in Illinois. In 2015-2019 the median was $86,775 in 2024 dollars, so it rose by $5,426 after inflation. 11.1% of residents live below the poverty line.
| Measure | Joliet | Will County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $92,201 ±$3,443 | $109,984 | +$5,426 |
| Mean household income | $106,289 ±$2,821 | $134,181 | – |
| Per capita income | $36,812 ±$928 | $47,516 | +$2,365 |
| People below the poverty line | 11.1% ±1.1 pts | 7.3% | no clear change |
| Children under 18 below the poverty line | 15.6% ±2.1 pts | 9.9% | no clear change |
| Households receiving SNAP | 16.8% ±1.2 pts | 10.1% | – |
| Households with a computer | 96.2% ±0.6 pts | 97.0% | – |
| Households with a broadband subscription | 93.4% ±0.9 pts | 94.1% | – |
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 Joliet?
Owners occupy 73.7% of Joliet's occupied homes and renters 26.3%. The median owner-occupied home is valued at $265,800 by its owner (±$3,594). The median renter pays $1,276 a month including utilities, and 43.7% of renters pay 35% or more of their income on rent.
| Measure | Joliet | Will County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $265,800 ±$3,594 | $319,600 | +$42,921 |
| Median gross rent | $1,276 ±$48 | $1,462 | no clear change |
| Renters paying 35% or more of income on rent | 43.7% ±3.9 pts | 43.4% | no clear change |
| Median monthly owner costs, with a mortgage | $1,960 ±$31 | $2,255 | – |
| Owner-occupied homes | 73.7% ±1.2 pts | 82.8% | +2.9 pts |
| Renter-occupied homes | 26.3% ±1.2 pts | 17.2% | – |
| Housing units | 53,814 ±734 | 254,278 | +2,678 |
| Homeowner vacancy rate | 0.9% ±0.4 pts | 0.5% | – |
| Rental vacancy rate | 4.3% ±1.5 pts | 3.7% | – |
| Single-family detached homes | 69.5% ±1.2 pts | 74.4% | – |
| Mobile homes | 0.5% ±0.2 pts | 1.3% | – |
| Built 2020 or later | 0.7% ±0.3 pts | 1.2% | – |
| Built 2010 to 2019 | 5.1% ±0.7 pts | 6.3% | – |
| Built 1939 or earlier | 15.7% ±1.2 pts | 6.9% | – |
| Households with no vehicle | 5.9% ±0.7 pts | 3.9% | – |
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 many new homes is Joliet building?
Builders took permits for 455 new housing units in Joliet in 2025 (271 in single-family houses), 3.0 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Joliet work and get to work?
77.5% of Joliet's workers drive alone and 8.8% work from home. The average trip to work takes 28.8 minutes. The unemployment rate in 2020-2024 averaged 5.5%.
| Measure | Joliet | Will County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.2% ±1.1 pts | 68.3% | – |
| Unemployment rate | 5.5% ±0.6 pts | 4.9% | no clear change |
| Drove alone to work | 77.5% ±1.2 pts | 72.9% | – |
| Carpooled | 10.5% ±1.1 pts | 8.0% | – |
| Public transportation | 1.3% ±0.3 pts | 2.0% | – |
| Walked | 0.6% ±0.2 pts | 0.7% | – |
| Worked from home | 8.8% ±0.8 pts | 14.7% | +5.8 pts |
| Mean travel time to work | 28.8 min ±0.7 | 31.4 min | −1.9 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
What census tracts are in Joliet?
40 census tracts lie mostly in Joliet, and 17 more reach into it (2020 census blocks). Their median household incomes run from $14,865 (Tract 8819) to $165,167 (Tract 8804.29).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 8804.31Will County | 6,576 | $128,929 |
| Tract 8907.01Kendall County | 5,388 | $119,844 |
| Tract 8804.18Will County | 5,215 | $146,458 |
| Tract 8832.06Will County | 4,681 | $107,852 |
| Tract 8832.18Will County | 5,159 | $140,994 |
| Tract 8818Will County | 4,430 | $72,871 |
| Tract 8804.32Will County | 4,726 | $119,595 |
| Tract 8804.29Will County | 5,202 | $165,167 |
| Tract 8804.28Will County | 4,709 | $125,667 |
| Tract 8826.01Will County | 3,589 | $73,750 |
| Tract 8815Will County | 3,563 | $76,932 |
| Tract 8814.02Will County | 3,601 | $86,222 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Joliet) · Census block assignment files
How does Joliet compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Joliet is the 180th-most populous of the 19,476 U.S. incorporated places that have one and the 4th-most populous of 1,294 in Illinois.
Joliet ranks 436th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 4th | 1,294 |
| Growth 2020-2025 (PEP) | 179th | 1,347 |
| Residents per square mile | 235th | 1,383 |
| Median household income | 436th | 1,380 |
| Per capita income | 787th | 1,383 |
| Median home value | 331st | 1,379 |
| Median gross rent | 324th | 1,280 |
| Poverty rate | 495th | 1,119 |
| Bachelor's degree or higher | 627th | 1,369 |
| Median age | 1,213th | 1,383 |
| Owner-occupied share | 887th | 1,382 |
| Work from home | 688th | 1,015 |
| Travel time to work | 367th | 1,382 |
Joliet's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Joliet with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Joliet?
2 of the 57 figures for Joliet 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Joliet are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Joliet.