HomeIllinoisSt. Clair CountyFairmont City
Fairmont City, Illinois: commercial real estate data.
Fairmont City is a Census village of 2,492 people across 6.20 square miles of land, lying across St. Clair County and Madison County. Median household income is $48,147, 78.7 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Fairmont City
What Fairmont City is
- Census place typevillage
- Land area6.2 sq mi
- Water area0.34 sq mi
- Population per square mile of land402
- County holding the largest share of its areaSt. Clair County, 85.2 percent
- Counties this place lies inSt. Clair County 85.2 percent, Madison County 14.8 percent
Fairmont City crosses a county line. The split above is measured from the Census boundary of the place against the county boundaries, by area, so it says where the ground is and not where the town hall is.
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairmont City
How many people live in Fairmont City
- Population2,492
- Median age38.9
- Population under 18671 plus or minus 172
- Share under 1826.9 percent
- Population 65 and over416 plus or minus 144
- Share 65 and over16.7 percent plus or minus 4.9
- Households881 plus or minus 182
- Family households566 plus or minus 130
- Share of households that are families64.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairmont City
Income and work in Fairmont City
- Median household income$48,147 plus or minus $26,414
- Per capita income$23,504
- Civilian labor force1,082 plus or minus 284
- Employed1,064 plus or minus 278
- Unemployed18 plus or minus 19
- Unemployment rate1.7 percent plus or minus 1.7
- Adults 25 and over1,650 plus or minus 336
- Adults 25 and over with a high school diploma or higher68.6 percent plus or minus 19.1
- Adults 25 and over with a bachelor degree or higher13.2 percent plus or minus 6.7
- Adults 25 and over with a graduate degree5.2 percent plus or minus 4.0
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairmont City
Housing in Fairmont City
- Housing units1,043
- Occupied units881 plus or minus 182
- Vacant units162 plus or minus 62
- Vacancy rate15.5 percent plus or minus 5.2
- Owner occupied693 plus or minus 162
- Renter occupied188 plus or minus 99
- Ownership rate78.7 percent
- Median owner-occupied home value$71,200
- Median gross rent, monthly$1,084
- Annual rent as a share of median income27.0 percent plus or minus 15.4
- Single family units980
- Share single family94.0 percent
- Units in buildings of two or more7 plus or minus 19
- Share in buildings of two or more0.7 percent plus or minus 1.8
- Mobile homes56 plus or minus 45
- Median year structure built1952
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairmont City
How Fairmont City gets to work
- Workers 16 and over who commute915 plus or minus 250
- Commuting under 15 minutes342 plus or minus 131
- Share commuting under 15 minutes37.4 percent plus or minus 10.1
- Commuting 30 minutes or more133 plus or minus 66
- Share commuting 30 minutes or more14.5 percent plus or minus 6.0
- Drove alone71.3 percent
- Carpooled14.6 percent plus or minus 6.5
- Public transport0.0 percent
- Walked2.1 percent plus or minus 3.3
- Worked from home12.0 percent plus or minus 7.6
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairmont City
SBA loans in Fairmont City (504)
- Approvals1
- Gross approval$483,000
- Average approval$483,000
- Median approval$483,000
- Largest approval$483,000
- Jobs supported8
- Loans with a final outcome1
- Charged off0
- Median term240 months
- Distinct CDCs1
Counted by borrower city: approvals to borrowers whose address is in Fairmont City, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Fairmont City
Flood risk in Fairmont City
- NFIP communityVillage of Fairmont City
- NFIP community number170627
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date11/05/03
The Village of Fairmont City participates in the National Flood Insurance Program as community 170627 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
St. Clair County, not Fairmont City
St. Clair County context, not Fairmont City figures
- Establishments in St. Clair County4,973
- Covered employment, St. Clair County89,981
- Average annual pay, St. Clair County$57,001
- Housing units permitted, St. Clair County740
Every figure in this section is published for St. Clair County as a whole and is not a measurement of Fairmont City.
All St. Clair County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Fairmont City questions, answered from the record.
How many people live in Fairmont City, Illinois?
2,492, in 881 households. Fairmont City village covers 6.20 square miles of land, which is 402 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Fairmont City in?
Fairmont City lies in more than one. By area it is 85.2 percent in St. Clair County, 14.8 percent in Madison County. This page sits under St. Clair County because that county holds the largest share. The split is measured from the Census boundary of the place against the county boundaries.
What is the median household income in Fairmont City?
$48,147. The median owner-occupied home is valued at $71,200. Median gross rent is $1,084 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Fairmont City in the National Flood Insurance Program?
Yes. Fairmont City appears in the FEMA Community Status Book as Fairmont City, village of, community 170627, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Fairmont City figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for St. Clair County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Fairmont City.
Is zoning published for Fairmont City?
No. Nothing on this page presents parcel level zoning.