Population
20,790
2025
−3.2% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Fayette County had an estimated 20,790 residents in 2025, down 3.2% (693 fewer people) since 2020. That is slower than Illinois as a whole (−0.6%), and the 75th fastest growth of 102 counties in Illinois.
Data as of 2025 · updated
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In the Fayette County report
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20,790
2025
−3.2% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
−96
2025
−4.6 per 1,000 residents
−405 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
4.9%
2025
+0.5 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
3
2025
0.1 per 1,000 residents
Small base: the change swings on a few homes or people, so we don't show it.
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$60,944
2020–24
+33.5% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
4,556
2023
−0.3% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration was negative in 2025: 96 more people moved out to other U.S. counties than moved in.
Private employers had 4,556 paid employees in mid-March 2023, −0.3% since 2018 (County Business Patterns).
Unemployment averaged 4.9% in 2025, 0.5 points higher than in 2019 (before the pandemic).
Builders were authorized to start 3 new homes in 2025, or 0.1 per 1,000 residents.
Median household income was $60,944 in the 2020–24 American Community Survey, +33.5% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,712th.
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| Year | Population | Change |
|---|---|---|
| 2025 | 20,790 | −164 |
| 2024 | 20,954 | −79 |
| 2023 | 21,033 | −86 |
| 2022 | 21,119 | +49 |
| 2021 | 21,070 | −413 |
| 2020 | 21,483 | – |
Census Bureau population estimates, July 1 of each year.
Fayette County lost 693 people since 2020; the biggest drag was domestic migration (−405).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −71 | −282 | |
| International migrationfrom and to other countries | +2 | +26 | |
| Domestic migrationfrom and to other U.S. counties | −96 | −405 | |
| Census adjustmentbalancing residual | +1 | −32 | |
| Total change | −164 | −693 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Illinois | Among U.S. counties |
|---|---|---|
| Population growth | 75th of 102 | 2,712th of 3,107 |
| Net domestic migration per 1,000 residents | 85th of 102 | 2,519th of 3,108 |
| Private-sector job growth | 48th of 102 | 1,913th of 3,092 |
| Median household income | 79th of 102 | 1,974th of 3,107 |
| Lowest unemployment rate | 75th of 102 | 2,437th of 3,108 |
| New homes permitted per 1,000 residents | 85th of 98 | 2,683rd of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for Fayette County, IL as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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Over 2020–25, Fayette County's population change (−3.2%) was ahead of 2 of its 7 neighbouring counties and behind 5.
6 of its 7 neighbouring counties had a higher median household income than Fayette County's $60,944 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Fayette County, IL This county | 20,790 | −3.2% | −4.6 | 0.1 | $60,944 |
| Marion County, IL | 36,382 | −3.4% | 0.1 | 0.3 | $61,240 |
| Bond County, IL | 16,959 | +0.6% | 23.6 | 1.5 | $65,959 |
| Effingham County, IL | 34,519 | −0.5% | −1.6 | 1.4 | $80,404 |
| Montgomery County, IL | 28,076 | −0.6% | 11.9 | 0.4 | $63,620 |
| Shelby County, IL | 20,576 | −1.6% | 5.3 | 2.2 | $72,095 |
| Clinton County, IL | 37,128 | +0.6% | 1.0 | 1.4 | $86,588 |
| Clay County, IL | 12,793 | −3.6% | −1.2 | 0.2 | $60,417 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
No. Its population fell 3.2% between 2020 and 2025, about 693 fewer people (Census Bureau population estimates). Illinois as a whole changed −0.6% over the same years. That ranks 75th of 102 counties in Illinois for population growth.
On net, none in 2025: about 96 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
It averaged 4.9% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 20,790 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 4,556 paid employees in mid-March 2023, −0.3% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Illinois county pages carry the public federal growth figures.
Email me when Fayette County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.