ZIP code · Mesa · Arizona · United States

ZIP code 85204 — Mesa

ZIP code 85204 serves Mesa, Arizona.

Postal code
85204
Single source Value from one source, not cross-checked.
City
Mesa
County
Maricopa FIPS 04013
State
Arizona
Country
United States
Coordinates
33.3992, -111.7896 — precision precise (locality)
View on OpenStreetMap
Population
65,018 (ZCTA, ACS 5-year)
Population density
6,563 / sq mi
Land area
9.9 sq mi (25.7 km²) (ZCTA, ACS 5-year)
Median household income
$69,474
Per-capita income
$31,230
Median age
33.4
Households
23,056
Housing units
24,536
Median home value
$296,000
Median gross rent
$1,426 / month
Congressional district
AZ-4 (119th Congress)
USDA hardiness zone
9b (25 to 30 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Phoenix (UTC−7, no DST)
Area codes
480, 602, 623 (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 106°F), coldest Dec (avg low 38°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F7174808795104106105101917969
Avg low °F394146515967767569564538
Precip in1.01.11.00.20.20.11.01.30.70.60.70.9

NOAA 1991–2020 climate normals from the nearest station: TEMPE ASU (7.8 mi) · NOAA NCEI

Places in ZIP 85204

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