Population
20,340
2025
−2.6% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Fairfield County, SC growth snapshot
Fairfield County had an estimated 20,340 residents in 2025, down 2.6% (552 fewer people) since 2020. That is slower than South Carolina as a whole (+8.5%), and the 134th fastest growth of 146 counties in the Carolinas.
Data as of 2025 · updated
Headline numbers
Net domestic migration
+20
2025
1.0 per 1,000 residents
+285 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.
Jobs
6,407
2025
+21.1% since 2020
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025. Average annual employment covered by unemployment insurance.
Average weekly wage
$1,155
2025
+9.9% since 2020
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2025. Average weekly wage, all covered jobs.
Unemployment rate
5.3%
2025
+1.2 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
74
2025
+34.5% since 2021
3.6 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$47,885
2020–24
+9.2% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
4,558
2023
−29.3% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 20 people in 2025: more people moved in from other U.S. counties than moved out.
Employers counted 6,407 jobs in 2025, +21.1% since 2020 (16th of 146 Carolinas counties for job growth); the average weekly wage was $1,155.
Unemployment averaged 5.3% in 2025, 1.2 points higher than in 2019 (before the pandemic).
Builders were authorized to start 74 new homes in 2025, or 3.6 per 1,000 residents.
Median household income was $47,885 in the 2020–24 American Community Survey, +9.2% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,616th.
Part of the Columbia, SC metro area.
Fairfield County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 20,340 | −138 |
| 2024 | 20,478 | −11 |
| 2023 | 20,489 | +34 |
| 2022 | 20,455 | −256 |
| 2021 | 20,711 | −181 |
| 2020 | 20,892 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Fairfield County
Fairfield County lost 552 people since 2020 even though 285 more people moved in from other U.S. counties than left: deaths outnumbered births by 838, and net international migration added 2.
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −152 | −838 | |
| International migrationfrom and to other countries | −6 | +2 | |
| Domestic migrationfrom and to other U.S. counties | +20 | +285 | |
| Census adjustmentbalancing residual | +0 | −1 | |
| Total change | −138 | −552 |
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.
How it ranks
| Measure | In South Carolina | Among U.S. counties |
|---|---|---|
| Population growth | 39th of 46 | 2,616th of 3,107 |
| Net domestic migration per 1,000 residents | 38th of 46 | 1,746th of 3,108 |
| Private-sector job growth | 46th of 46 | 3,072nd of 3,092 |
| Median household income | 35th of 46 | 2,846th of 3,107 |
| Average weekly wage | 13th of 46 | – |
| Lowest unemployment rate | 29th of 46 | 2,689th of 3,108 |
| New homes permitted per 1,000 residents | 30th of 46 | 928th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
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Neighbouring counties
Fairfield County lost population faster than all 6 of its neighbouring counties (−2.6%, 2020–25).
5 of its 6 neighbouring counties had a higher median household income than Fairfield County's $47,885 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Fairfield County, SC This county | 20,340 | −2.6% | 1.0 | 3.6 | $47,885 |
| Chester County, SC | 33,001 | +2.2% | 15.6 | 9.4 | $52,458 |
| Richland County, SC | 434,956 | +4.6% | 3.8 | 7.8 | $63,784 |
| Kershaw County, SC | 73,166 | +11.6% | 17.7 | 7.0 | $68,231 |
| Lancaster County, SC | 114,296 | +18.3% | 21.0 | 9.7 | $78,869 |
| Newberry County, SC | 39,561 | +4.8% | 5.8 | 4.0 | $61,780 |
| Union County, SC | 26,799 | −1.4% | 5.9 | 13.9 | $41,621 |
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.
All 46 South Carolina counties · All Carolinas counties and metros
Questions
What is the population of Fairfield County?
About 20,340 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Is Fairfield County growing?
No. Its population fell 2.6% between 2020 and 2025, about 552 fewer people (Census Bureau population estimates). South Carolina as a whole changed +8.5% over the same years. That ranks 134th of 146 Carolinas counties for population growth.
How many people moved to Fairfield County?
On net, about 20 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
How many jobs are in Fairfield County?
Employers there reported 6,407 jobs covered by unemployment insurance in 2025, +21.1% since 2020 (BLS Quarterly Census of Employment and Wages). The average weekly wage was $1,155 in 2025.
What is the unemployment rate in Fairfield County?
It averaged 5.3% in 2025 (BLS Local Area Unemployment Statistics, annual average).
How many new homes are being built in Fairfield County?
Building permits authorized 74 new housing units in 2025, 3.6 per 1,000 residents (Census Bureau Building Permits Survey). Permits count homes authorized, not finished.
What is the median household income in Fairfield County?
$47,885 in the 2020–24 American Community Survey 5-year estimates.
How does Fairfield County compare with other South Carolina counties?
Among South Carolina counties it ranks 39th of 46 for population growth; 38th of 46 for net domestic migration per 1,000 residents; 46th of 46 for private-sector job growth; 35th of 46 for median household income. Nationally it ranks 2,616th of 3,107 counties for population growth.
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Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
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.