Union township is located in Pike County, Ohio. Union township has a 2026 population of 1,291. Union township is currently growing at a rate of 0.62% annually and its population has increased by 2.62% since the most recent census, which recorded a population of 1,258 in 2020.
The median age in Union township is 32.9 years: 40.4 years for males, and 31.9 years for females. For every 100 females there are 77.9 males.
Data after 2023 is projected based on recent change
Overall: 32.9 years
Female: 31.9 years
Male: 40.4 years
There are 1,171 adults, (262 of whom are seniors) in Union township.
Female: 1,003 (56.2%)
Male: 781 (43.8%)
The racial composition of Union township includes 99.78% White, and smaller percentages for Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,780 | 99.78% |
| Asian | 4 | 0.22% |