ZIP code · Arlington · Washington · United States

ZIP code 98223 — Arlington

ZIP code 98223 serves Arlington, Washington.

Postal code
98223
Single source Value from one source, not cross-checked.
City
Arlington
County
Snohomish FIPS 53061
State
Washington
Country
United States
Coordinates
48.1829, -122.1121 — precision precise (locality)
View on OpenStreetMap
Population
46,225 (ZCTA, ACS 5-year)
Population density
146 / sq mi
Land area
316.2 sq mi (818.8 km²) (ZCTA, ACS 5-year)
Median household income
$96,478
Per-capita income
$45,432
Median age
40.5
Households
16,964
Housing units
18,224
Median home value
$556,900
Median gross rent
$1,780 / month
Congressional districts
WA-8 (also WA-1, WA-2) (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 Aug (avg high 78°F), coldest Dec (avg low 28°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F475154606771777872615246
Avg low °F292832354145484742373128
Precip in5.94.45.04.33.42.71.11.32.54.97.26.2

NOAA 1991–2020 climate normals from the nearest station: ARLINGTON (1.4 mi) · NOAA NCEI

Places in ZIP 98223

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