Fairmont, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Fairmont, Illinois had a total population of 2,617, the 451st largest community in Illinois, with a median household income of $70,795, which is 15% lower than the state average. The poverty rate is 15.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Fairmont Quick Facts
How Fairmont 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 | 2,409 | 2,617 | +8.6% |
| Median household income | $59,244 | $70,795 | +19.5% |
| Median home value | $147,400 | $182,300 | +23.7% |
How Fairmont 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+)
Fairmont Rankings in Illinois
Explore Illinois Rankings
Other Cities in Will County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Joliet | 150,445 | $92,201 | 11.1% | $265,800 |
| 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 |
Cities Similar to Fairmont
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Richmond | 2,622 | $73,029 | $238,600 | 26.8% | 5.2% |
| Bushnell | 2,677 | $67,518 | $71,900 | 15.3% | 9.8% |
| Round Lake Heights | 2,592 | $78,986 | $216,800 | 18.4% | 14.5% |
| Lena | 2,761 | $72,663 | $146,000 | 24.6% | 3.1% |
| Oakbrook Terrace | 2,723 | $76,905 | $372,400 | 56.6% | 17.3% |
Population Overview
Fairmont is a small community located in Illinois, within Will County. The total population is 2,617. It ranks as the 451st most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Fairmont is 32.5 years. This is 17% lower than the state median of 39.0 years. With 29.3% of the population under 18, Fairmont has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Fairmont is $70,795. This is 15% lower than the state median of $83,390. It is also 12% lower than the national median of $80,734. The poverty rate stands at 15.6%. This is 32% higher than the state poverty rate of 11.8%. The unemployment rate is 7.1%. This is 21% higher than the state rate of 5.8%. The median home value is $182,300. Housing costs are 31% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.6x, Fairmont is one of the most affordable housing markets in the area. 69.9% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Fairmont is Hispanic or Latino, making up 51.5% of the population. White (non-Hispanic) residents account for 22.9%. The White (non-Hispanic) population (22.9%) is well below the state average of 58.1%. The Black or African American population is significantly higher than the state average (22.9% vs 13.3%). The Hispanic or Latino population is significantly higher than the state average (51.5% vs 18.8%).
Education
17.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% 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 80.4%.
Data Sources & Methodology
All demographic data for Fairmont, 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 Fairmont, Illinois?
Fairmont, Illinois has a population of 2,617 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Fairmont, IL?
The median household income in Fairmont is $70,795, which is 12% lower than the national median of $80,734.
What is the poverty rate in Fairmont, IL?
The poverty rate in Fairmont is 15.6%. This means approximately 409 residents live below the federal poverty line.
What is the racial makeup of Fairmont, Illinois?
Fairmont's population is 22.9% White, 22.9% Black, 51.5% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Fairmont, IL?
The median home value in Fairmont is $182,300. The home-value-to-income ratio is 2.6x.
How educated is Fairmont, Illinois?
17.5% of adults (25+) in Fairmont hold a bachelor's degree or higher, and 6.3% hold a graduate or professional degree.