ZIP Code 39503

39503 is one of Mississippi's ZIP codes, delivering to addresses in Gulfport, Harrison County.

City: Gulfport
County: Harrison County
State: Mississippi
Prefix: 395xx

Where this code sits

39503 is part of the 395xx range, the group of codes handled by one mail processing centre. Gulfport is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Gulfport page.

Gulfport Mississippi ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 39503 delivers to without sharing its boundary.

228 Area code 228

ZIP codes nearest 39503

The ZIP codes whose reference points sit closest to 39503.
ZIP code	Distance	Delivers to
ZIP code 39502	3.3 mi	Gulfport, MS
ZIP code 39505	3.3 mi	Gulfport, MS
ZIP code 39506	3.3 mi	Gulfport, MS
ZIP code 39535	3.3 mi	Biloxi, MS
ZIP code 39501	5.4 mi	Gulfport, MS
ZIP code 39507	5.4 mi	Gulfport, MS
ZIP code 39532	8.0 mi	Biloxi, MS
ZIP code 39560	8.3 mi	Long Beach, MS

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 39503, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 39503. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.