ZIP code · Holly · Michigan · United States

ZIP code 48442 — Holly

ZIP code 48442 serves Holly, Michigan.

Postal code
48442
Single source Value from one source, not cross-checked.
City
Holly
County
Oakland FIPS 26125
State
Michigan
Country
United States
Coordinates
42.7905, -83.6127 — precision precise (locality)
View on OpenStreetMap
Population
22,720 (ZCTA, ACS 5-year)
Population density
265 / sq mi
Land area
85.9 sq mi (222.4 km²) (ZCTA, ACS 5-year)
Median household income
$80,281
Per-capita income
$43,223
Median age
43
Households
9,352
Housing units
9,722
Median home value
$252,500
Median gross rent
$1,243 / month
Congressional districts
MI-9 (also MI-8, 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 codes
248, 947
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 80°F), coldest Jan (avg low 13°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F293242556776807871584533
Avg low °F131423334453575549392920
Precip in2.61.82.33.33.93.53.63.13.53.02.62.3

NOAA 1991–2020 climate normals from the nearest station: WHITE LAKE 4E (9.6 mi) · NOAA NCEI

Places in ZIP 48442

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