Washington County, Ohio ZIP Codes
- ZIP records
15 - Cities represented
15 - Sum of listed ZIP population estimates
57,228
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 45750 | Marietta | 26,420 |
| 2 | 45714 | Belpre | 9,503 |
| 3 | 45742 | Little Hocking | 3,752 |
| 4 | 45786 | Waterford | 3,187 |
| 5 | 45784 | Vincent | 3,002 |
| 6 | 45767 | New Matamoras | 2,428 |
| 7 | 45744 | Lowell | 2,179 |
| 8 | 45729 | Fleming | 2,121 |
| 9 | 45768 | Newport | 1,503 |
| 10 | 45724 | Cutler | 1,218 |
Cities in Washington County
- Belpre
- Coal Run
- Cutler
- Fleming
- Little Hocking
- Lowell
- Macksburg
- Marietta
- New Matamoras
- Newport
- Reno
- Vincent
- Waterford
- Whipple
- Wingett Run
ZIP Directory
- ZIP 45714
- ZIP 45721
- ZIP 45724
- ZIP 45729
- ZIP 45742
- ZIP 45744
- ZIP 45746
- ZIP 45750
- ZIP 45767
- ZIP 45768
- ZIP 45773
- ZIP 45784
- ZIP 45786
- ZIP 45788
- ZIP 45789
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.