ZIP code · Rosburg · Washington · United States

ZIP code 98643 — Rosburg

ZIP code 98643 serves Rosburg, Washington.

Postal code
98643
Single source Value from one source, not cross-checked.
City
Rosburg
County
Wahkiakum FIPS 53069
State
Washington
Country
United States
Coordinates
46.3071, -123.6571 — precision precise (locality)
View on OpenStreetMap
Population
514 (ZCTA, ACS 5-year)
Population density
15 / sq mi
Land area
34.2 sq mi (88.6 km²) (ZCTA, ACS 5-year)
Median household income
$57,181
Per-capita income
$30,248
Median age
39.2
Households
204
Housing units
268
Median home value
$232,400
Median gross rent
$1,571 / 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 code
360 (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 Aug (avg high 74°F), coldest Dec (avg low 33°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F495155596467727472635447
Avg low °F343335384447505146413633
Precip in17.811.612.58.74.73.61.21.94.310.717.118.3

NOAA 1991–2020 climate normals from the nearest station: NASELLE 2 ENE (6.5 mi) · NOAA NCEI

Places in ZIP 98643

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