ZIP code · Mcchord Afb · Washington · United States

ZIP code 98438 — Mcchord Afb

ZIP code 98438 serves Mcchord Afb, Washington.

Postal code
98438
Single source Value from one source, not cross-checked.
City
Mcchord Afb
County
Pierce FIPS 53053
State
Washington
Country
United States
Coordinates
47.2258, -122.4690 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
568 (ZCTA, ACS 5-year)
Population density
591 / sq mi
Land area
1 sq mi (2.5 km²) (ZCTA, ACS 5-year)
Median household income
$21,023
Per-capita income
$27,255
Median age
22.2
Households
25
Housing units
25
Congressional district
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 code
253 (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 77°F), coldest Dec (avg low 37°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F485055606771777771615247
Avg low °F373740444953575753474137
Precip in6.04.04.43.42.01.40.60.81.64.16.56.0

NOAA 1991–2020 climate normals from the nearest station: TACOMA #1 (3.0 mi) · NOAA NCEI

Places in ZIP 98438

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