ZIP code · College Place · Washington · United States
ZIP code 99324 — College Place
ZIP code 99324 serves College Place, Washington.
- Postal code
- 99324Single source Value from one source, not cross-checked.
- City
- College Place
- County
- Walla Walla FIPS 53071
- State
- Washington
- Country
- United States
- Coordinates
- 46.0471, -118.4093 — precision precise (locality)
View on OpenStreetMap - Population
- 10,171 (ZCTA, ACS 5-year)
- Population density
- 3,669 / sq mi
- Land area
- 2.8 sq mi (7.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $64,485
- Per-capita income
- $32,729
- Median age
- 31.9
- Households
- 3,347
- Housing units
- 3,601
- Median home value
- $338,600
- Median gross rent
- $1,121 / 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 99324 with another ZIP · ZIPs within 25 miles · distance from 99324
Map of ZIP code 99324
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Dec (avg low 27°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 42 | 48 | 57 | 65 | 73 | 80 | 90 | 90 | 80 | 66 | 50 | 41 |
| Avg low °F | 27 | 28 | 32 | 37 | 44 | 49 | 54 | 52 | 44 | 36 | 31 | 27 |
| Precip in | 1.7 | 1.4 | 1.7 | 1.5 | 1.8 | 1.1 | 0.4 | 0.4 | 0.7 | 1.3 | 1.7 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: WHITMAN MISSION (2.5 mi) · NOAA NCEI
Places in ZIP 99324
- 5 schools
- 1 colleges & universities
- 3 doctors & dentists
- 2 supermarkets
- 6 restaurants & cafés
- 7 parks
- 6 playgrounds
- 1 libraries
- 1 post offices
- 4 places of worship
- 6 banks
- 2 gas stations
- 1 EV charging stations
- 2 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