ZIP Code 74643

74643 is one of Oklahoma's ZIP codes, delivering to addresses in Lamont, Grant County.

City: Lamont
County: Grant County
State: Oklahoma
Prefix: 746xx

Where this code sits

74643 is part of the 746xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lamont.

Lamont Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 74643 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 74643

The ZIP codes whose reference points sit closest to 74643.
ZIP code	Distance	Delivers to
ZIP code 74636	8.1 mi	Deer Creek, OK
ZIP code 74640	10 mi	Hunter, OK
ZIP code 74646	11 mi	Nardin, OK
ZIP code 73759	12 mi	Medford, OK
ZIP code 73766	14 mi	Pond Creek, OK
ZIP code 74630	14 mi	Billings, OK
ZIP code 74653	14 mi	Tonkawa, OK
ZIP code 74631	17 mi	Blackwell, OK

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 74643, plotted from its record coordinates.

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

Scope ZIP code 74643. 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.