ZIP code · Pomeroy · Washington · United States
ZIP code 99347 — Pomeroy
ZIP code 99347 serves Pomeroy, Washington.
- Postal code
- 99347Single source Value from one source, not cross-checked.
- City
- Pomeroy
- County
- Garfield FIPS 53023
- State
- Washington
- Country
- United States
- Coordinates
- 46.4698, -117.5993 — precision precise (locality)
View on OpenStreetMap - Population
- 2,467 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 769.7 sq mi (1,993.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $61,741
- Per-capita income
- $34,730
- Median age
- 52.3
- Households
- 1,121
- Housing units
- 1,325
- Median home value
- $220,800
- Median gross rent
- $768 / 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
- 509Telephone 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 99347 with another ZIP · ZIPs within 25 miles · distance from 99347
Map of ZIP code 99347
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Dec (avg low 26°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 45 | 52 | 59 | 67 | 74 | 85 | 85 | 75 | 61 | 48 | 40 |
| Avg low °F | 27 | 28 | 33 | 37 | 44 | 49 | 53 | 53 | 45 | 37 | 32 | 26 |
| Precip in | 2.0 | 1.6 | 2.1 | 1.7 | 1.6 | 1.1 | 0.5 | 0.5 | 0.6 | 1.3 | 2.3 | 2.3 |
NOAA 1991–2020 climate normals from the nearest station: POMEROY (0.6 mi) · NOAA NCEI
Places in ZIP 99347
- 5 schools
- 1 hospitals & clinics
- 10 parks
- 1 playgrounds
- 1 gyms & sports centres
- 1 police & fire stations
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