Zip Code 99174 — Steptoe, WA
99174 is a ZIP Code associated with Steptoe, WA, located within Whitman. 99174 ranks #19 out of 20 ZIP codes in Whitman County by population (and #576 out of 605 in WA). The area supports an estimated population of 69 residents across Data Pending housing units, with a population density of 976.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (47.007190, -117.356820)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 99174 |
| Primary City | Steptoe |
| State / Province | WA |
| County | Whitman |
| Total Population | 69 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 976.3 people/sq mi |
| Timezone | America/Los_Angeles |
How 99174 Compares
| Metric | ZIP 99174 | Whitman County | WA State Average |
|---|
| Population | 69 | 47,284 (Total) | 7,816,021 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 976.3 /sq mi | -- | -- |
| County Pop Rank | #19 of 20 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →