City in Washington County, Ohio · 8.4 sq mi · 1,541 people per sq mi
About 13,000 people live in Marietta. The typical household earns $47,873, and the median resident is 39.4 years old.
2026 projection
From 13,356 in 2020
Poverty rate 19.11%
Men 37.1 · Women 41.8
1800–2026
12,990
2026 projection
2.7% 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.
1800–2026
12,990
2026 projection
2.7% 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 | 12,990 | -63 | 0.48% |
|---|---|---|---|
| 2025 | 13,053 | -51 | 0.39% |
| 2024 | 13,104 | -18 | 0.14% |
| 2023 | 13,122 | -86 | 0.65% |
| 2022 | 13,208 | -108 | 0.81% |
| 2021 | 13,316 | -40 | 0.30% |
| 2020 | 13,356 | -49 | 0.37% |
| 2019 | 13,405 | -170 | 1.25% |
| 2018 | 13,575 | -137 | 1.00% |
| 2017 | 13,712 | +88 | 0.65% |
Showing 10 of 38 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 132 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 5 residents
37% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 37% | 38% | 35% |
| Never married | 38% | 41% | 35% |
| Divorced | 15% | 13% | 16% |
| Widowed | 9% | 4% | 13% |
| Separated | 2% | 3% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau