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 — CITY/OK/DELAWARE

Delaware ZIP code, Oklahoma

The ZIP code for Delaware, OK is 74027, and its area code is 918.

USPS city name
1 ZIP code
Population
301
Area code
918

Delaware in numbers

About 301 people live in Delaware, in 116 households. The median household income is $40,000 a year, 38% below the Oklahoma median of $65,039 (US: $80,734). The median owner-occupied home is valued at $41,400 (79% below the Oklahoma median), and median gross rent is $640 a month. The median age is 44.1; 10.6% of adults 25 and over hold a bachelor's degree or higher (28.3% across Oklahoma); the average commute takes 27 minutes.

Population301Delaware301
Households116Delaware116
Median age44.1Delaware44.1Oklahoma37.0US 38.9
Median household income$40,000Delaware$40,000Oklahoma$65,039US $80,734
Median home value$41,400Delaware$41,400Oklahoma$199,800US $332,700
Median gross rent$640Delaware$640Oklahoma$1,014US $1,413
Bachelor's degree or higher10.6%Delaware10.6%Oklahoma28.3%US 35.7%
Mean commute27.1 minDelaware27.1 minOklahoma22.4 minUS 26.4 min
Population density764 / sq miDelaware764 / sq mi

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

ZIP codes addressed as Delaware

ZIP codes with the USPS city name Delaware
ZIP City Type Population Median income Median home
74027 Delaware , OK Standard 759 $48,375 $141,700

Map of Delaware ZIP codes

74027

The ZIP codes of Delaware, OK, 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.

Towns near Delaware

The nearest larger towns are Nowata (3,542 people, 5.5 mi), South Coffeyville (684 people, 15 mi) and Dewey (3,412 people, 16 mi).

Towns near Delaware
TownPopulationDistance
Nowata 3,542 5.5 mi
Dewey 3,412 16.1 mi
Bartlesville 37,878 17.2 mi
Coffeyville, KS 8,662 17.5 mi

More nearby: every ZIP code in Nowata County · Oklahoma ZIP codes

Cite this page

zipcodes.pro. “Delaware, OK ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ok/delaware

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