ZIP code 99170: Rosalia, WA
99170 is a ZIP code in Rosalia, Washington, mainly in Whitman County, part of the Pullman, WA micro area. About 926 people live here.
- Population
- 926
- Median household income
- $58,750
- Typical home value
- $316,900+2.8% in 12 months
- Median rent
- $825gross, per month
- Median age
- 50.5
- Homeowners
- 83.9%of occupied homes
Shaded: ZIP code 99170's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 99170 details
| City | Rosalia |
|---|---|
| State | Washington |
| County | Whitman County (also partly Spokane County) |
| Metro area | Pullman, WA |
| Time zone | Pacific Time (UTC−8), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 173.1 sq mi, plus 0.3 sq mi of water |
| Population density | 5 people per sq mi |
| Bachelor's degree or higher | 17.8% of adults 25+ |
| Average commute | 30.9 minutes |
| Center coordinates | 47.25296, -117.39722 |
ZIP codes near 99170
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 99149 | Malden, WA | 3.8 mi | 100 |
| 99039 | Waverly, WA | 9.8 mi | 166 |
| 99158 | Oakesdale, WA | 11.1 mi | 561 |
| 99176 | Thornton, WA | 11.1 mi | 163 |
| 99031 | Spangle, WA | 11.6 mi | 1,251 |
| 99018 | Latah, WA | 11.8 mi | 272 |
| 99012 | Fairfield, WA | 13.1 mi | 1,167 |
| 99033 | Tekoa, WA | 14.1 mi | 832 |
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
Buying a home in 99170?
A typical home in ZIP code 99170 is worth about $316,900 (Zillow Home Value Index). The median household here earns $58,750 a year. See what buying here would cost per month, with Washington average taxes and insurance filled in.
Monthly payment for a $316,900 homeWhat can a $58,750 income afford?Rental property numbers
About ZIP code 99170
What city is ZIP code 99170?
ZIP code 99170 is in Rosalia, WA, in Whitman County.
What county is ZIP code 99170 in?
99170 is mainly in Whitman County, Washington, and partly in Spokane County.
What is the population of ZIP code 99170?
About 926 people live in ZIP code 99170, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 99170 in?
99170 is in Pacific Time (UTC−8). It observes daylight saving time.