City in Miami County, Ohio · 8.5 sq mi · 851 people per sq mi
7,226 people live in Union. The typical household earns $73,353, and the median resident is 36.8 years old.
2026 projection
From 6,859 in 2020
Poverty rate 12.56%
Men 35.1 · Women 43.5
1880–2026
7,226
2026 projection
5.4% since 2020 (increase)
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.
1880–2026
7,226
2026 projection
5.4% since 2020 (increase)
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 | 7,226 | +49 | 0.68% |
|---|---|---|---|
| 2025 | 7,177 | +75 | 1.06% |
| 2024 | 7,102 | +84 | 1.20% |
| 2023 | 7,018 | +76 | 1.09% |
| 2022 | 6,942 | +25 | 0.36% |
| 2021 | 6,917 | +58 | 0.85% |
| 2020 | 6,859 | +12 | 0.18% |
| 2019 | 6,847 | +119 | 1.77% |
| 2018 | 6,728 | +124 | 1.88% |
| 2017 | 6,604 | +29 | 0.44% |
Showing 10 of 26 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.
Union is growing faster than Miami County, Ohio, 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 70 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 8 residents
56% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 56% | 65% | 50% |
| Never married | 24% | 28% | 21% |
| Divorced | 10% | 5% | 14% |
| Widowed | 9% | 1% | 15% |
| Separated | <1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources