County ZIP codes · Oklahoma · FIPS 40051

Grady County, OK ZIP Codes

Grady County, Oklahoma has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 14 residential and 1 for PO boxes or a single organization. 11 of the residential ones lie mainly in Grady County and 3 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $46,683 in 73017 (Cement) to $103,048 in 73089 (Tuttle) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

73017 · $47k73089 · $103k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $59,211 and $69,808.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 14 residential ZIP codes in Grady County

11 ZIP codes lie mainly in Grady County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Grady County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
73010	Blanchard	21,521	123	$90k	$272k	52%
73018	Chickasha	20,505	132	$57k	$141k	100%
73089	Tuttle	14,290	134	$103k	$291k	100%
73059	Minco	2,784	17	$73k	$169k	59%
73082	Rush Springs	2,714	17	$59k	$134k	97%
73067	Ninnekah	1,606	13	$64k	$129k	100%
73002	Alex	1,177	33	$70k	$106k	99%
73004	Amber	853	14	$83k	$163k	100%
73092	Verden	732	14	$52k	$136k	55%
73079	Pocasset	682	8	$96k	$183k	79%
73011	Bradley	607	10	$60k	$106k	100%

Partly in Grady County

Residential ZIP codes mainly in another county that reach at least 1% into Grady County, by their share here
						In this county
73017	Cement	1,351	17	$47k	$92k	47%
73055	Marlow	10,064	39	$66k	$165k	24%
73052	Lindsay	6,380	30	$62k	$170k	10%

Download the 15 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

9 ZIP codes of Grady County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Grady County and in the neighboring counties
ZIP	In Grady	Elsewhere
73010	52%	McClain County48%
73055	24%	Stephens County75%; Comanche County2%
73052	10%	Garvin County52%; McClain County38%
73059	59%	Caddo County28%; Canadian County13%
73082	97%	Comanche County3%
73017	47%	Caddo County48%; Comanche County4%
73002	99%
73092	55%	Caddo County45%
73079	79%	Caddo County21%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Grady County without a residential area (GeoNames postal codes)
ZIP	Postal name
73023	Chickasha

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Grady County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Grady County starts with 730.

Three-digit prefixes of Grady County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Grady County's
Prefix	Sectional center	Here	All codes
730	Oklahoma City, OK (SCF 730)	15	89

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.

Where are the ZIP codes of Grady County?