County in South Carolina · 686 sq mi · 29 people per sq mi
20,202 people live in Fairfield County. The typical household earns $47,885, and the median resident is 47.4 years old.
2026 projection
From 20,892 in 2020
Poverty rate 15.65%
Men 45.8 · Women 49.3
1790–2026
20,202
2026 projection
3.3% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1790–2026
20,202
2026 projection
3.3% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 20,202 | -138 | 0.68% |
|---|---|---|---|
| 2025 | 20,340 | -138 | 0.67% |
| 2024 | 20,478 | -11 | 0.05% |
| 2023 | 20,489 | +34 | 0.17% |
| 2022 | 20,455 | -256 | 1.24% |
| 2021 | 20,711 | -181 | 0.87% |
| 2020 | 20,892 | -1,430 | 6.41% |
| 2019 | 22,322 | -70 | 0.31% |
| 2018 | 22,392 | -216 | 0.96% |
| 2017 | 22,608 | -43 | 0.19% |
Showing 10 of 38 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 206 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 6 residents
42% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 42% | 42% | 42% |
| Never married | 34% | 36% | 32% |
| Divorced | 10% | 10% | 11% |
| Widowed | 12% | 9% | 14% |
| Separated | 2% | 3% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau