20 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 43952 | Steubenville | 17,836 |
| 43953 | Steubenville | 11,274 |
| 43964 | Toronto | 8,952 |
| 43938 | Mingo Junction | 5,660 |
| 43943 | Rayland | 3,457 |
| 43910 | Bloomingdale | 3,191 |
| 43944 | Richmond | 2,593 |
| 43901 | Adena | 2,232 |
| 43917 | Dillonvale | 2,207 |
| 43963 | Tiltonsville | 1,262 |
| 43913 | Brilliant | 1,213 |
| 43908 | Bergholz | 1,073 |
| 43930 | Hammondsville | 1,017 |
| 43932 | Irondale | 1,008 |
| 43971 | Yorkville | 923 |
| 43948 | Smithfield | 623 |
| 43939 | Mount Pleasant | 341 |
| 43926 | Empire | 252 |
| 43961 | Stratton | 221 |
| 43925 | East Springfield | 39 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 20 ZCTAs in Jefferson County, Ohio (US Census).