Mesa is a city in Franklin County, Washington, home to about 502 people across 1.7 square miles. It has no ZIP code of its own: it’s part of 99330 and 99343.
Homes sold for a median of $270 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Part is in Mesa
Mostly Basin City; part is in Mesa
Each card is that ZIP code’s whole market, including any part outside Mesa. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Spokane International Airport (GEG)104 miles away |
|---|---|
| Closer regional airport | Tri Cities Airport (PSC)21 miles away |
| Nearest city of 250,000+ | Seattle, WA168 miles away |
Straight-line distances from the center of Mesa; 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.
Mesa had 385 residents in the 2020 census, down 9% since 2000.
It’s the 474th largest of 628 towns in Washington by population.
Franklin County grew from 486 residents in 1900 to 96,749 in 2020.
Franklin 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 27°F. About 10.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Eltopia 8 Wsw, WA weather station (12 miles away).
24,069 jobs at 1,968 businesses in Franklin County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Mesa’s ZIP codes.
Nearest hospitals
Providers with an office here
| Mental health providers | 1 |
|---|---|
| Physical and occupational therapists | 1 |
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 North Franklin School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Basin City ElemMesa | K–6 | 330 | Public | 2.0 mi |
| Mesa ElemMesa | K–6 | 220 | Public | 6.3 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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Shares ZIP codes with Basin City.
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.