Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/OK/COUNTY/CUSTER

Custer County, OK ZIP codes

Custer County, OK has 6 ZIP codes, in 6 towns: 73096, 73601, 73669, 73620, 73639 and 73625. 2 more cross into it from neighbouring counties: 73647 and 73650.

The county seat is Arapaho.

ZIP codes
6
Partly in it
2 more
Towns
6
County seat
Arapaho
County FIPS
40039
Population
28,259
Median household income
$59,738
Land area
989 sq mi
Area code
580
Metro area
Weatherford

Custer County ZIP codes by town

Arapaho (county seat)
73620

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Custer County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Custer County.

Map of Custer County ZIP codes

The ZIP codes of Custer County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Custer County in numbers

About 28,259 people live in Custer County, in 11,044 households, the 33rd most populous of Oklahoma's 77 counties. The median household income is $59,738 a year, 8% below the Oklahoma median of $65,039 (US: $80,734). The median owner-occupied home is valued at $181,500 (9% below the Oklahoma median), and median gross rent is $824 a month. The median age is 32.8; 31.7% of adults 25 and over hold a bachelor's degree or higher (28.3% across Oklahoma); the average commute takes 19 minutes.

Population28,259Custer28,259
Households11,044Custer11,044
Median age32.8Custer32.8Oklahoma37.0US 38.9
Median household income$59,738Custer$59,738Oklahoma$65,039US $80,734
Median home value$181,500Custer$181,500Oklahoma$199,800US $332,700
Median gross rent$824Custer$824Oklahoma$1,014US $1,413
Bachelor's degree or higher31.7%Custer31.7%Oklahoma28.3%US 35.7%
Mean commute19.0 minCuster19.0 minOklahoma22.4 minUS 26.4 min
Population density29 / sq miCuster29 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Custer County

Largest towns in Custer County
TownZIP codesPopulation
Weatherford 1 12,004
Clinton 1 8,388
Thomas 1 1,170
Arapaho 1 715
Custer City 1 566
Butler 1 250

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Custer County.

Not sure you are in Custer County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Custer County, with figures

ZIP codes in Custer County
ZIP City Type Population Median income Median home
73096 Weatherford , OK Standard 14,364 $59,138 $248,600
73601 Clinton , OK Standard 9,597 $59,630 $129,300
73620 Arapaho , OK Standard 1,378 $53,194 $157,400
73625 Butler , OK Standard 384 $72,083 $112,500
73639 Custer City , OK Standard 817 $73,269 $97,800
73669 Thomas , OK Standard 1,539 $69,821 $151,100

Cite this page

zipcodes.pro. “Custer County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ok/county/custer

Underlying data is public domain or openly licensed — sources, vintages and licences.