ZIP codes in Grady County
15 ZIPs touch Grady County, Oklahoma. The blue dashed line is the county border; orange ZIPs reach into it.
15
ZIP codes
9
cross the county line
85,266
people in these ZIPs
77
counties in OK
Most people
Grady County ZIP list
More counties in Oklahoma
- Custer County13
- Delaware County14
- Dewey County12
- Ellis County7
- Garfield County24
- Garvin County13
- Grant County10
- Greer County4
- Harmon County6
- Harper County7
- Haskell County8
- Hughes County10
Questions people actually ask
How many ZIP codes are in Grady County, Oklahoma?
15 ZIP codes reach into Grady County, including 1 PO Box or single-address ZIPs placed by the town they serve. 9 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Grady County has the most people?
73010 (Blanchard) has about 21,521 residents, the most of any ZIP touching Grady County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Grady 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 Grady 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