ZIP Code 59803

59803 is one of Montana's ZIP codes, delivering to addresses in Missoula, Missoula County.

City: Missoula
County: Missoula County
State: Montana
Prefix: 598xx

Where this code sits

59803 is part of the 598xx range, the group of codes handled by one mail processing centre. Missoula is served by 8 ZIP codes in total; the full list, with the county each falls in, is on the Missoula page.

Missoula Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59803 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59803

The ZIP codes whose reference points sit closest to 59803.
ZIP code	Distance	Delivers to
ZIP code 59801	2.3 mi	Missoula, MT
ZIP code 59806	3.8 mi	Missoula, MT
ZIP code 59812	3.8 mi	Missoula, MT
ZIP code 59802	5.5 mi	Missoula, MT
ZIP code 59847	5.9 mi	Lolo, MT
ZIP code 59807	6.9 mi	Missoula, MT
ZIP code 59804	7.0 mi	Missoula, MT
ZIP code 59851	7.8 mi	Milltown, MT

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 59803, plotted from its record coordinates.

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

Scope ZIP code 59803. 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.