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County ZIP codes · Oklahoma · FIPS 40053

Grant County, OK ZIP Codes

Grant County, Oklahoma has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Grant County and 3 mainly in a neighboring county; 6 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Grant County?

73703 · Enid: $73k73758 · Manchester: $90k73759 · Medford: $52k73761 · Nash: $75k73766 · Pond Creek: $58k73771 · Wakita: $40k74636 · Deer Creek: –74640 · Hunter: $88k74643 · Lamont: $69k74646 · Nardin: $91k7375974643737717376173703737667375874640746367464673703 · Enid: $73k73758 · Manchester: $90k73759 · Medford: $52k73761 · Nash: $75k73766 · Pond Creek: $58k73771 · Wakita: $40k74636 · Deer Creek: –74640 · Hunter: $88k74643 · Lamont: $69k74646 · Nardin: $91k7375974643737717376173703737667375874640746367464673703 · Enid: $73k73758 · Manchester: $90k73759 · Medford: $52k73761 · Nash: $75k73766 · Pond Creek: $58k73771 · Wakita: $40k74636 · Deer Creek: –74640 · Hunter: $88k74643 · Lamont: $69k74646 · Nardin: $91k7375974643737717376173703737667464074636
The residential ZIP codes of Grant County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 10 residential ZIP codes in Grant County

7 ZIP codes lie mainly in Grant County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Grant County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
73759 Medford 1,335 4 $52k $104k 100%
73766 Pond Creek 997 8 $58k $142k 100%
74643 Lamont 512 4 $69k $80k 93%
73771 Wakita 420 3 $40k $59k 100%
73761 Nash 370 3 $75k $93k 90%
73758 Manchester 257 2 $90k $69k 59%
74636 Deer Creek 189 4 – $214k 100%

Partly in Grant County

Residential ZIP codes mainly in another county that reach at least 1% into Grant County, by their share here
In this county
74640 Hunter 327 3 $88k $160k 26%
74646 Nardin 289 5 $91k – 23%
73703 Enid 30,556 268 $73k $196k 4%

Download the 10 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Grant County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Grant County and in the neighboring counties
ZIPIn GrantElsewhere
737034%Garfield County97%
7464393%Kay County7%
7376190%Garfield County10%
7464026%Garfield County74%
7464623%Kay County77%
7375859%Alfalfa County41%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Grant County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Grant County's ZIP codes use 2 prefixes: 737 and 746.

Three-digit prefixes of Grant County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Grant County's
PrefixSectional centerHereAll codes
737Oklahoma City, OK (SCF 730)651
746Tulsa, OK (SCF 740)419

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.