Delaware County, OK ZIP codes
Delaware County ZIP codes by town
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.
Map of Delaware County ZIP codes
The ZIP codes of Delaware 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.
Delaware County in numbers
About 41,279 people live in Delaware County, in 17,161 households, the 25th most populous of Oklahoma's 77 counties. The median household income is $56,676 a year, 13% below the Oklahoma median of $65,039 (US: $80,734). The median owner-occupied home is valued at $175,300 (12% below the Oklahoma median), and median gross rent is $913 a month. The median age is 46.9; 19.9% of adults 25 and over hold a bachelor's degree or higher (28.3% across Oklahoma); the average commute takes 29 minutes.
| Population | 41,279 |
|---|---|
| Households | 17,161 |
| Median age | 46.9 |
| Median household income | $56,676 |
| Median home value | $175,300 |
| Median gross rent | $913 |
| Bachelor's degree or higher | 19.9% |
| Mean commute | 28.6 min |
| Population density | 56 / 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 Delaware County
| Town | ZIP codes | Population |
|---|---|---|
| Grove | 2 | 7,176 |
| Jay | 1 | 2,731 |
| Eucha | 1 | 2,039 |
| Colcord | 1 | 910 |
| Afton | 1 | 762 |
| Kansas | 1 | 748 |
| Oaks | 1 | 295 |
| Twin Oaks | 1 | 278 |
| Rose | 1 | 225 |
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 Delaware County.
Not sure you are in Delaware County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Delaware County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
74331 | Afton , OK | Standard | 7,058 | $61,272 | $204,500 |
74338 | Colcord , OK | Standard | 5,069 | $57,768 | $120,500 |
74342 | Eucha , OK | Standard | 2,039 | $57,321 | $160,500 |
74344 | Grove , OK | Standard | 14,876 | $58,125 | $221,400 |
74345 | Grove , OK | No street area | — | — | — |
74346 | Jay , OK | Standard | 8,266 | $49,556 | $129,700 |
74347 | Kansas , OK | Standard | 2,757 | $47,526 | $104,200 |
74359 | Oaks , OK | Standard | 309 | $45,625 | $59,000 |
74364 | Rose , OK | Standard | 1,931 | $63,542 | $171,300 |
74368 | Twin Oaks , OK | Standard | 60 | $91,875 | $325,000 |
Cite this page
zipcodes.pro. “Delaware County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ok/county/delaware
Underlying data is public domain or openly licensed — sources, vintages and licences.