May Oklahoma ZIP Codes

May holds a single ZIP code.

Every ZIP code in May

The complete list of May, Oklahoma ZIP codes with the county each falls in.
ZIP code	County
73851	Harper County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the May codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for May. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every May ZIP code begins 738. Those first three digits identify the sectional center facility that processes mail for this part of Oklahoma. Statewide that range covers 20 ZIP codes, so May accounts for 5% of it.

Every Oklahoma ZIP prefix and the region it covers →

Area codes covering May

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground May occupies.

580 Area code 580

May Oklahoma area codes in full →

Where May's ZIP codes sit

Each point is one May ZIP code, plotted from its record coordinates.

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

Cities near May

The closest places to May with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Fort Supply Oklahoma ZIP codes	10 mi	1 ZIP code
Laverne Oklahoma ZIP codes	10 mi	1 ZIP code
Buffalo Oklahoma ZIP codes	16 mi	1 ZIP code
Rosston Oklahoma ZIP codes	17 mi	1 ZIP code
Fargo Oklahoma ZIP codes	18 mi	1 ZIP code
Gage Oklahoma ZIP codes	21 mi	1 ZIP code
Woodward Oklahoma ZIP codes	23 mi	2 ZIP codes
Gate Oklahoma ZIP codes	24 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.