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County ZIP codes · Oklahoma · FIPS 40039

Custer County, OK ZIP Codes

Custer County, Oklahoma has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Custer County and 7 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $53,180 in 73644 (Elk City) to $69,821 in 73669 (Thomas) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Custer County?

73048 · Hydro: $58k73096 · Weatherford: $59k73601 · Clinton: $60k73620 · Arapaho: $53k73625 · Butler: $72k73626 · Canute: $69k73639 · Custer City: $73k73644 · Elk City: $53k73646 · Fay: $73k73647 · Foss: $83k73650 · Hammon: $71k73654 · Leedey: $79k73669 · Thomas: $70k7365473048736447365073639736477362673669736017309673646736257362073048 · Hydro: $58k73096 · Weatherford: $59k73601 · Clinton: $60k73620 · Arapaho: $53k73625 · Butler: $72k73626 · Canute: $69k73639 · Custer City: $73k73644 · Elk City: $53k73646 · Fay: $73k73647 · Foss: $83k73650 · Hammon: $71k73654 · Leedey: $79k73669 · Thomas: $70k7365473048736447365073639736477362673669736017309673646736257362073048 · Hydro: $58k73096 · Weatherford: $59k73601 · Clinton: $60k73620 · Arapaho: $53k73625 · Butler: $72k73626 · Canute: $69k73639 · Custer City: $73k73644 · Elk City: $53k73646 · Fay: $73k73647 · Foss: $83k73650 · Hammon: $71k73654 · Leedey: $79k73669 · Thomas: $70k736547304873644736507363973647736697360173096736467362573620
The residential ZIP codes of Custer 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).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $53,194 and $59,630.

They carry 13 postal town names.

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

All 13 residential ZIP codes in Custer County

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

Residential ZIP codes mainly in Custer County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
73096 Weatherford 14,364 74 $59k $249k 70%
73601 Clinton 9,597 70 $60k $129k 74%
73669 Thomas 1,539 11 $70k $151k 76%
73620 Arapaho 1,378 13 $53k $157k 100%
73639 Custer City 817 5 $73k $98k 100%
73625 Butler 384 3 $72k $113k 100%

Partly in Custer County

Residential ZIP codes mainly in another county that reach at least 1% into Custer County, by their share here
In this county
73647 Foss 699 5 $83k $167k 40%
73626 Canute 1,110 10 $69k $155k 40%
73650 Hammon 893 4 $71k $129k 31%
73654 Leedey 661 2 $79k $136k 14%
73646 Fay 400 3 $73k $130k 9%
73048 Hydro 2,149 11 $58k $175k 7%
73644 Elk City 14,043 76 $53k $155k 2%

Download the 13 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?

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

Share of each ZIP code's land in Custer County and in the neighboring counties
ZIPIn CusterElsewhere
7309670%Washita County 29%; Blaine County 1%
736442%Beckham County 80%; Washita County 15%; Roger Mills County 3%
7360174%Washita County 26%
730487%Caddo County 72%; Blaine County 21%
7366976%Dewey County 18%; Blaine County 6%
7362640%Washita County 60%
7365031%Roger Mills County 69%
7364740%Washita County 60%
7365414%Roger Mills County 50%; Dewey County 36%
736469%Blaine County 61%; Dewey County 29%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Custer County's ZIP codes use 2 prefixes: 730 and 736.

Three-digit prefixes of Custer 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 Custer County's
PrefixSectional centerHereAll codes
730 Oklahoma City, OK (SCF 730) 2 89
736 Oklahoma City, OK (SCF 730) 11 34

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