ZIP code · Olympia · Washington · United States

ZIP code 98504 — Olympia

ZIP code 98504 serves Olympia, Washington.

Postal code: 98504
Single source Value from one source, not cross-checked.
City: Olympia
County: Thurston
State: Washington
Country: United States
Coordinates: 47.0379, -122.9007 — precision precise (locality)
View on OpenStreetMap
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.

Tools: compare 98504 with another ZIP · ZIPs within 25 miles · distance from 98504

Climate — monthly normals

Warmest month Aug (avg high 78°F), coldest Feb (avg low 32°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	46	49	54	59	66	71	78	78	72	60	51	45
Avg low °F	33	32	35	38	43	47	51	51	46	41	36	33
Precip in	7.8	5.1	5.7	3.7	2.3	1.5	0.5	1.0	2.0	5.1	8.2	7.8

NOAA 1991–2020 climate normals from the nearest station: OLYMPIA AP (4.5 mi) · NOAA NCEI

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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page