Benton City, WA ZIP code
The ZIP code for Benton City, Washington is 99320. It is in Benton County.
- Population in these ZIPs
- 9,879
- Avg. median income
- $90,100population-weighted
- Typical home value
- $434,700population-weighted
- Metro area
- Kennewick-Richland, WA
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Benton City, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 99320 | 9,879 | $90,102 | $434,700 |
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 Benton City
Frequently asked questions
What is the ZIP code for Benton City, WA?
The ZIP code for Benton City, WA is 99320.
What county is Benton City, Washington in?
Benton City ZIP codes are in Benton County.