City in Marion County, West Virginia · 8.6 sq mi · 2,087 people per sq mi
17,953 people live in Fairmont. The typical household earns $63,032, and the median resident is 34.9 years old.
2026 projection
From 18,416 in 2020
Poverty rate 17.37%
Men 34.5 · Women 35.5
1850–2026
17,953
2026 projection
2.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1850–2026
17,953
2026 projection
2.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 17,953 | -82 | 0.45% |
|---|---|---|---|
| 2025 | 18,035 | -64 | 0.35% |
| 2024 | 18,099 | -74 | 0.41% |
| 2023 | 18,173 | -32 | 0.18% |
| 2022 | 18,205 | -130 | 0.71% |
| 2021 | 18,335 | -81 | 0.44% |
| 2020 | 18,416 | -17 | 0.09% |
| 2019 | 18,433 | -51 | 0.28% |
| 2018 | 18,484 | -9 | 0.05% |
| 2017 | 18,493 | -23 | 0.12% |
Showing 10 of 33 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Fairmont has a population change lower than Marion County, West Virginia, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 182 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% | 41% |
| Never married | 40% | 45% | 35% |
| Divorced | 12% | 10% | 13% |
| Widowed | 6% | 2% | 10% |
| Separated | <1% | <1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources