ZIP code · Richland · Washington · United States
ZIP code 99354 — Richland
ZIP code 99354 serves Richland, Washington.
- Postal code
- 99354Single source Value from one source, not cross-checked.
- City
- Richland
- County
- Benton FIPS 53005
- State
- Washington
- Country
- United States
- Coordinates
- 46.3257, -119.3067 — precision precise (locality)
View on OpenStreetMap - Population
- 25,577 (ZCTA, ACS 5-year)
- Population density
- 1,069 / sq mi
- Land area
- 23.9 sq mi (62 km²) (ZCTA, ACS 5-year)
- Median household income
- $88,601
- Per-capita income
- $43,468
- Median age
- 34
- Households
- 10,274
- Housing units
- 10,807
- Median home value
- $355,400
- Median gross rent
- $1,299 / month
- Congressional district
- WA-4 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °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 99354 with another ZIP · ZIPs within 25 miles · distance from 99354
Map of ZIP code 99354
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Dec (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 48 | 57 | 65 | 74 | 80 | 89 | 88 | 79 | 64 | 49 | 40 |
| Avg low °F | 29 | 30 | 35 | 41 | 48 | 54 | 60 | 59 | 51 | 42 | 34 | 28 |
| Precip in | 1.0 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.2 | 0.1 | 0.3 | 0.5 | 0.9 | 1.1 |
NOAA 1991–2020 climate normals from the nearest station: RICHLAND (2.3 mi) · NOAA NCEI
Places in ZIP 99354
- 10 schools
- 1 colleges & universities
- 1 hospitals & clinics
- 2 doctors & dentists
- 2 pharmacies
- 3 supermarkets
- 34 restaurants & cafés
- 2 bars & pubs
- 32 parks
- 34 playgrounds
- 3 gyms & sports centres
- 1 libraries
- 1 post offices
- 15 places of worship
- 1 banks
- 9 gas stations
- 4 EV charging stations
- 5 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