ZIP Code 59243

59243 is one of Montana's ZIP codes, delivering to addresses in Lambert, Richland County.

City: Lambert
County: Richland County
State: Montana
Prefix: 592xx

Where this code sits

59243 is part of the 592xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lambert.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59243 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59243

The ZIP codes whose reference points sit closest to 59243.
ZIP code	Distance	Delivers to
ZIP code 59217	20 mi	Crane, MT
ZIP code 59221	20 mi	Fairview, MT
ZIP code 59270	20 mi	Sidney, MT
ZIP code 59259	21 mi	Richey, MT
ZIP code 59262	21 mi	Savage, MT
ZIP code 59218	28 mi	Culbertson, MT
ZIP code 59315	29 mi	Bloomfield, MT
ZIP code 59212	34 mi	Bainville, 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 59243, plotted from its record coordinates.

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

Scope ZIP code 59243. 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.