ZIP code · Centralia · Washington · United States

ZIP code 98531 — Centralia

ZIP code 98531 serves Centralia, Washington.

Postal code
98531
Single source Value from one source, not cross-checked.
City
Centralia
County
Lewis FIPS 53041
State
Washington
Country
United States
Coordinates
46.7246, -122.9671 — precision precise (locality)
View on OpenStreetMap
Population
27,356 (ZCTA, ACS 5-year)
Population density
212 / sq mi
Land area
129.2 sq mi (334.5 km²) (ZCTA, ACS 5-year)
Median household income
$61,963
Per-capita income
$30,234
Median age
38.4
Households
10,580
Housing units
11,070
Median home value
$285,700
Median gross rent
$1,068 / month
Congressional district
WA-3 (119th Congress)
USDA hardiness zone
8b (15 to 20 °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 codes
360, 564
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.

Climate — monthly normals

Warmest month Aug (avg high 78°F), coldest Feb (avg low 34°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F465054606771787873615145
Avg low °F343436394449535348433734
Precip in5.84.24.43.22.41.50.50.81.64.06.56.4

NOAA 1991–2020 climate normals from the nearest station: CENTRALIA (0.7 mi) · NOAA NCEI

Places in ZIP 98531

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