
Richwood
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 1.242
- State:
- Ohio
Richwood is a village located in Union County, Ohio. Richwood has a 2025 population of 2,667. Richwood is currently growing at a rate of 3.37% annually and its population has increased by 19.38% since the most recent census, which recorded a population of 2,234 in 2020.
The average household income in Richwood is $87,700 with a poverty rate of 14.5%. The median age in Richwood is 39 years: 42 years for males, and 34.7 years for females.