Hennessey, OK ZIP code
The ZIP code for Hennessey, Oklahoma is 73742. It is in Kingfisher County.
- Population in these ZIPs
- 3,906
- Avg. median income
- $70,500population-weighted
- Typical home value
- $187,200population-weighted
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Hennessey, OK ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 73742 | 3,906 | $70,538 | $187,200 |
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 Hennessey
Frequently asked questions
What is the ZIP code for Hennessey, OK?
The ZIP code for Hennessey, OK is 73742.
What county is Hennessey, Oklahoma in?
Hennessey ZIP codes are in Kingfisher County.