City in Marion County, South Carolina · 4.5 sq mi · 1,332 people per sq mi
5,965 people live in Marion. The typical household earns $30,662, and the median resident is 43.9 years old.
2026 projection
From 6,448 in 2020
Poverty rate 26.83%
Men 35.8 · Women 49.4
1850–2026
5,965
2026 projection
7.5% 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
5,965
2026 projection
7.5% 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 | 5,965 | -63 | 1.05% |
|---|---|---|---|
| 2025 | 6,028 | -92 | 1.50% |
| 2024 | 6,120 | -41 | 0.67% |
| 2023 | 6,161 | -18 | 0.29% |
| 2022 | 6,179 | -113 | 1.80% |
| 2021 | 6,292 | -156 | 2.42% |
| 2020 | 6,448 | -60 | 0.92% |
| 2019 | 6,508 | -67 | 1.02% |
| 2018 | 6,575 | -37 | 0.56% |
| 2017 | 6,612 | -92 | 1.37% |
Showing 10 of 32 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.
Marion has a population change lower than Marion County, South Carolina, 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 62 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 4 residents
23% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 23% | 26% | 21% |
| Never married | 52% | 60% | 45% |
| Divorced | 9% | 3% | 14% |
| Widowed | 10% | 8% | 11% |
| Separated | 6% | 3% | 9% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources