ZIP code · Whitmore Lake · Michigan · United States

ZIP code 48189 — Whitmore Lake

ZIP code 48189 serves Whitmore Lake, Michigan.

Postal code
48189
Single source Value from one source, not cross-checked.
City
Whitmore Lake
County
Washtenaw FIPS 26161
State
Michigan
Country
United States
Coordinates
42.4289, -83.7828 — precision precise (locality)
View on OpenStreetMap
Population
13,748 (ZCTA, ACS 5-year)
Population density
402 / sq mi
Land area
34.2 sq mi (88.5 km²) (ZCTA, ACS 5-year)
Median household income
$82,433
Per-capita income
$48,875
Median age
42.5
Households
5,989
Housing units
6,196
Median home value
$286,200
Median gross rent
$1,228 / month
Congressional districts
MI-6 (also MI-7) (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
734
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 82°F), coldest Feb (avg low 14°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F303444576977827974604735
Avg low °F151424344554595850403022
Precip in2.42.12.43.03.63.73.43.33.12.82.52.1

NOAA 1991–2020 climate normals from the nearest station: WHITMORE LAKE 1NW (0.4 mi) · NOAA NCEI

Places in ZIP 48189

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