ZIP code · Mount Morris · Michigan · United States

ZIP code 48458 — Mount Morris

ZIP code 48458 serves Mount Morris, Michigan.

Postal code
48458
Single source Value from one source, not cross-checked.
City
Mount Morris
County
Genesee FIPS 26049
State
Michigan
Country
United States
Coordinates
43.1160, -83.6895 — precision precise (locality)
View on OpenStreetMap
Population
19,411 (ZCTA, ACS 5-year)
Population density
543 / sq mi
Land area
35.7 sq mi (92.6 km²) (ZCTA, ACS 5-year)
Median household income
$43,496
Per-capita income
$26,406
Median age
39.2
Households
8,037
Housing units
9,136
Median home value
$87,100
Median gross rent
$896 / month
Congressional district
MI-8 (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
810 (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 84°F), coldest Feb (avg low 14°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F313444577079848174614836
Avg low °F151423324454585648392921
Precip in2.41.92.33.33.83.43.53.23.03.02.62.1

NOAA 1991–2020 climate normals from the nearest station: BURTON 4N (6.0 mi) · NOAA NCEI

Places in ZIP 48458

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