Rosalia is a town in Whitman County, Washington, home to about 513 people across 0.6 square miles. Its ZIP code is 99170.
Mostly Rosalia
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| Nearest major airport | Spokane International Airport (GEG)28 miles away |
|---|---|
| Nearest city of 250,000+ | Seattle, WA232 miles away |
Straight-line distances from the center of Rosalia; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Rosalia had 598 residents in the 2020 census, down 8% since 2000.
It’s the 473rd largest of 628 towns in Washington by population.
Whitman County grew from 25,360 residents in 1900 to 47,973 in 2020.
Whitman County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 24°F. About 18.4 inches of rain and melted snow fall in a typical year, with about 26 inches of snow.
Source: NOAA 1991–2020 climate normals, Rosalia, WA weather station (3 miles away).
11,417 jobs at 873 businesses in Whitman County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Rosalia.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Grocery stores
Libraries
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Rosalia School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Rosalia Elementary & Secondary SchoolRosalia | Pre-K–12 | 163 | Public | 2.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.