Postal reference / United States
39520Bay Saint Louis, Mississippi
ZIP code 39520 is a United States postal code for Bay Saint Louis, Mississippi. Its county association is Hancock County. The map reference point is at 30.2956, -89.4632.
- State / territory
- Mississippi
- Recorded place name
- Bay Saint Louis
- County association
- Hancock
- Estimated coordinate
- 30.2956, -89.4632
View on OpenStreetMap - ZIP prefix
- 395 · 41 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 96.925 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
Need the last four digits?
ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
Find ZIP+4Explore Mississippi
Browse the other 530 ZIP codes recorded for Mississippi, sorted by code with place and county.
Mississippi directoryOther ZIP codes in Bay Saint Louis, MS
Bay Saint Louis has 2 ZIP codes in the reference dataset.
- 39521Hancock
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 39558 | Lakeshore | MS | Hancock | 3.9 |
| 39576 | Waveland | MS | Hancock | 4.8 |
| 39525 | Diamondhead | MS | Hancock | 7.4 |
| 39521 | Bay Saint Louis | MS | Hancock | 7.7 |
| 39522 | Stennis Space Center | MS | Hancock | 7.7 |
| 39529 | Stennis Space Center | MS | Hancock | 7.7 |
| 39572 | Pearlington | MS | Hancock | 8.8 |
| 39571 | Pass Christian | MS | Harrison | 12.8 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
Verify a mailing address
For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
Open USPS address lookup