ZIP code · Mount Pleasant · Michigan · United States

ZIP code 48858 — Mount Pleasant

ZIP code 48858 serves Mount Pleasant, Michigan.

Postal code
48858
Single source Value from one source, not cross-checked.
City
Mount Pleasant
County
Isabella FIPS 26073
State
Michigan
Country
United States
Coordinates
43.6013, -84.7736 — precision precise (locality)
View on OpenStreetMap
Population
42,732 (ZCTA, ACS 5-year)
Population density
245 / sq mi
Land area
174.4 sq mi (451.7 km²) (ZCTA, ACS 5-year)
Median household income
$48,794
Per-capita income
$29,878
Median age
27.3
Households
17,426
Housing units
19,396
Median home value
$168,000
Median gross rent
$862 / month
Congressional district
MI-2 (119th Congress)
USDA hardiness zone
6a (-10 to -5 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Detroit (UTC−5 / UTC−4 DST)
Area code
989
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 84°F), coldest Jan (avg low 16°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303243566980848274604635
Avg low °F161724344657615951413122
Precip in2.11.71.93.63.73.93.23.82.83.52.82.4

NOAA 1991–2020 climate normals from the nearest station: CENTRAL MICHIGAN UNIV (1.1 mi) · NOAA NCEI

Places in ZIP 48858

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