ZIP code · Rochester · Washington · United States

ZIP code 98579 — Rochester

ZIP code 98579 serves Rochester, Washington.

Postal code
98579
Single source Value from one source, not cross-checked.
City
Rochester
County
Thurston FIPS 53067
State
Washington
Country
United States
Coordinates
46.8193, -123.0406 — precision precise (locality)
View on OpenStreetMap
Population
13,907 (ZCTA, ACS 5-year)
Population density
148 / sq mi
Land area
94.2 sq mi (244 km²) (ZCTA, ACS 5-year)
Median household income
$94,284
Per-capita income
$35,627
Median age
41.8
Households
4,841
Housing units
5,005
Median home value
$405,500
Median gross rent
$1,222 / month
Congressional districts
WA-3 (also WA-10) (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 (8.0 mi) · NOAA NCEI

Places in ZIP 98579

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