ZIP code · Brinnon · Washington · United States

ZIP code 98320 — Brinnon

ZIP code 98320 serves Brinnon, Washington.

Postal code
98320
Single source Value from one source, not cross-checked.
City
Brinnon
County
Jefferson FIPS 53031
State
Washington
Country
United States
Coordinates
47.6776, -122.9375 — precision precise (locality)
View on OpenStreetMap
Population
1,313 (ZCTA, ACS 5-year)
Population density
10 / sq mi
Land area
136.8 sq mi (354.4 km²) (ZCTA, ACS 5-year)
Median household income
$53,000
Per-capita income
$34,646
Median age
59.6
Households
610
Housing units
1,320
Median home value
$265,500
Median gross rent
$1,222 / month
Congressional district
WA-6 (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 (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.

Climate — monthly normals

Warmest month Jul (avg high 77°F), coldest Dec (avg low 32°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F464954606770777772615044
Avg low °F323235384448525147413532

NOAA 1991–2020 climate normals from the nearest station: QUILCENE 2 SW (9.1 mi) · NOAA NCEI

Places in ZIP 98320

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