ZIP codes in Kay County
11 ZIPs touch Kay County, Oklahoma. The blue dashed line is the county border; orange ZIPs reach into it.
11
ZIP codes
6
cross the county line
47,737
people in these ZIPs
77
counties in OK
Most people
Kay County ZIP list
More counties in Oklahoma
- Harper County7
- Haskell County8
- Hughes County10
- Jackson County11
- Jefferson County9
- Johnston County13
- Kingfisher County12
- Kiowa County9
- Latimer County8
- Le Flore County23
- Lincoln County16
- Logan County15
Questions people actually ask
How many ZIP codes are in Kay County, Oklahoma?
11 ZIP codes reach into Kay County, including 1 PO Box or single-address ZIPs placed by the town they serve. 6 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Kay County has the most people?
74601 (Ponca City) has about 18,916 residents, the most of any ZIP touching Kay County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Kay County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Kay County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from