
Addyston
- County:
- Hamilton County
- County Seat:
- No
- Area (mi²):
- 0.848
- State:
- Ohio
Addyston is a village located in Hamilton County, Ohio. Addyston has a 2025 population of 890. Addyston is currently declining at a rate of -0.78% annually and its population has decreased by -3.78% since the most recent census, which recorded a population of 925 in 2020.
The average household income in Addyston is $63,490 with a poverty rate of 34.53%. The median age in Addyston is 29 years: 27.9 years for males, and 29.1 years for females.