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Chickasha, OK ZIP codes

Chickasha, Oklahoma has 2 ZIP codes, including 1 PO Box ZIP. They are in Grady County.

Population in these ZIPs
20,505
Avg. median income
$56,500population-weighted
Typical home value
$157,600population-weighted
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ZIP codes within 10 miles

Chickasha, OK ZIP codes list

Chickasha, OK ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
73018Grady County20,505$56,484$157,600
73023 PO BoxGrady County———

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Chickasha

Frequently asked questions

What is the ZIP code for Chickasha, OK?

Chickasha, OK has 2 ZIP codes: 73018 and 73023.

What county is Chickasha, Oklahoma in?

Chickasha ZIP codes are in Grady County.

Which Chickasha ZIP codes are PO Boxes?

73023 is a PO Box or single-organization ZIP code; it has no residential delivery area.