Joliet, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Joliet, Illinois had a total population of 150,445, the 4th largest city in Illinois, with a median household income of $92,201, which is 11% higher than the state average. The poverty rate is 11.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Joliet is the 4th largest city in Illinois with a population of 150,445.
Joliet Quick Facts
How Joliet Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 149,785 | 150,445 | +0.4% |
| Median household income | $88,026 | $92,201 | +4.7% |
| Median home value | $248,600 | $265,800 | +6.9% |
How Joliet Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Joliet Rankings in Illinois
Explore Illinois Rankings
Other Cities in Will County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Plainfield | 46,708 | $144,000 | 4.2% | $431,400 |
| Romeoville | 41,152 | $106,325 | 5.5% | $257,100 |
| Oswego | 36,375 | $123,792 | 2.6% | $344,500 |
| New Lenox | 28,006 | $140,865 | 1.5% | $399,900 |
| Lockport | 26,409 | $111,981 | 6.8% | $316,000 |
| Crest Hill | 20,628 | $73,033 | 12.0% | $232,900 |
| Mokena | 20,021 | $123,889 | 4.5% | $401,400 |
| Shorewood | 18,343 | $122,105 | 5.2% | $337,800 |
| Channahon | 13,927 | $119,494 | 5.9% | $327,900 |
| Minooka | 12,891 | $115,445 | 2.6% | $315,600 |
Cities Similar to Joliet
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Aurora | 179,898 | $93,633 | $274,800 | 38.5% | 9.5% |
| Naperville | 150,692 | $155,105 | $540,200 | 72.5% | 4.5% |
| Elgin | 114,934 | $90,282 | $273,000 | 27.0% | 9.8% |
| Rockford | 147,521 | $54,752 | $129,000 | 23.5% | 21.3% |
| Springfield | 113,330 | $66,064 | $162,100 | 36.3% | 16.8% |
Population Overview
Joliet is a major urban center located in Illinois, within Will County. The total population is 150,445. It ranks as the 4th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Joliet is 35.8 years. This is 8% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Joliet is $92,201. This is 11% higher than the state median of $83,390. It is also 14% higher than the national median of $80,734. The poverty rate stands at 11.1%. This is 6% lower than the state poverty rate of 11.8%. The unemployment rate is 5.5%. This is 7% lower than the state rate of 5.8%. The median home value is $265,800. Housing costs are about the same as the state median of $263,300. With a home-value-to-income ratio of just 2.9x, Joliet is one of the most affordable housing markets in the area. 73.7% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 67.1%.
Race & Ethnicity
Joliet is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 34.2%. The Hispanic or Latino population is significantly higher than the state average (34.2% vs 18.8%). The Asian population (2.4%) is well below the state average of 5.9%.
Education
25.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 33% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 85.3%.
Data Sources & Methodology
All demographic data for Joliet, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Joliet, Illinois?
Joliet, Illinois has a population of 150,445 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Joliet, IL?
The median household income in Joliet is $92,201, which is 14% higher than the national median of $80,734.
What is the poverty rate in Joliet, IL?
The poverty rate in Joliet is 11.1%. This means approximately 16,330 residents live below the federal poverty line.
What is the racial makeup of Joliet, Illinois?
Joliet's population is 44.0% White, 16.0% Black, 34.2% Hispanic/Latino, and 2.4% Asian.
What is the median home value in Joliet, IL?
The median home value in Joliet is $265,800. The home-value-to-income ratio is 2.9x.
How educated is Joliet, Illinois?
25.5% of adults (25+) in Joliet hold a bachelor's degree or higher, and 10.0% hold a graduate or professional degree.