Washington County, Louisiana ZIP Codes
- ZIP records
4 - Cities represented
4 - Sum of listed ZIP population estimates
45,956
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 | 70438 | Franklinton | 19,349 |
| 2 | 70427 | Bogalusa | 17,596 |
| 3 | 70426 | Angie | 6,090 |
| 4 | 70450 | Mount Hermon | 2,921 |
Cities in Washington County
ZIP Directory
Browse all ZIP data for Louisiana
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.