ZIP Code 73440

73440 is one of Oklahoma's ZIP codes, delivering to addresses in Lebanon, Marshall County.

City: Lebanon
County: Marshall County
State: Oklahoma
Prefix: 734xx

Where this code sits

73440 is part of the 734xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lebanon.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73440 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 73440

The ZIP codes whose reference points sit closest to 73440.
ZIP code	Distance	Delivers to
ZIP code 76245	10 mi	Gordonville, TX
ZIP code 73439	11 mi	Kingston, OK
ZIP code 73446	11 mi	Madill, OK
ZIP code 73448	12 mi	Marietta, OK
ZIP code 73453	14 mi	Overbrook, OK
ZIP code 73447	15 mi	Mannsville, OK
ZIP code 75076	17 mi	Pottsboro, TX
ZIP code 76264	17 mi	Sadler, TX

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 73440, plotted from its record coordinates.

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

Scope ZIP code 73440. 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.