Steptoe, WA ZIP code
The ZIP code for Steptoe, Washington is 99174. It is in Whitman County.
- Population in these ZIPs
- 69
- Avg. median income
- $50,200population-weighted
- Typical home value
- $254,500population-weighted
- Metro area
- Pullman, WA
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Steptoe, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 99174 | 69 | $50,179 | $254,500 |
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 Steptoe
Frequently asked questions
What is the ZIP code for Steptoe, WA?
The ZIP code for Steptoe, WA is 99174.
What county is Steptoe, Washington in?
Steptoe ZIP codes are in Whitman County.