ZIP code · Mesa · Washington · United States
ZIP code 99343 — Mesa
ZIP code 99343 serves Mesa, Washington.
- Postal code
- 99343Single source Value from one source, not cross-checked.
- City
- Mesa
- County
- Franklin FIPS 53021
- State
- Washington
- Country
- United States
- Coordinates
- 46.5782, -119.1373 — precision precise (locality)
View on OpenStreetMap - Population
- 3,236 (ZCTA, ACS 5-year)
- Population density
- 18 / sq mi
- Land area
- 180.9 sq mi (468.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $72,400
- Per-capita income
- $29,329
- Median age
- 23.7
- Households
- 778
- Housing units
- 778
- Median home value
- $244,500
- Median gross rent
- $1,090 / month
- Congressional district
- WA-5 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 509 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 99343 with another ZIP · ZIPs within 25 miles · distance from 99343
Map of ZIP code 99343
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Dec (avg low 27°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 47 | 57 | 64 | 73 | 79 | 86 | 85 | 77 | 63 | 48 | 39 |
| Avg low °F | 27 | 29 | 33 | 39 | 46 | 51 | 57 | 57 | 49 | 40 | 32 | 27 |
| Precip in | 1.4 | 1.0 | 0.7 | 0.8 | 0.9 | 0.8 | 0.3 | 0.2 | 0.4 | 0.9 | 1.1 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: ELTOPIA 8 WSW (12.4 mi) · NOAA NCEI
Places in ZIP 99343
- 2 schools
- 1 supermarkets
- 4 parks
- 4 playgrounds
- 1 libraries
- 1 post offices
- 2 places of worship
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page