ZIP Code 45203
Cincinnati · Hamilton, Ohio
45203 is the ZIP code of Cincinnati in Hamilton, Ohio, United States.
- ZIP Code
- 45203
- County
- Hamilton
- State
- Ohio
- Country
- United States
Place with ZIP code 45203
| Place | County | Location |
|---|---|---|
| Cincinnati | Hamilton | 39.108, -84.526 |
Near Louisville
The nearest major city is Louisville, about 143 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 45203?
Cincinnati.
Which county and state is 45203 in?
Hamilton, Ohio, United States.
What is the nearest major city to 45203?
Louisville, about 143 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.