ZIP code · Chelsea · Michigan · United States

ZIP code 48118 — Chelsea

ZIP code 48118 serves Chelsea, Michigan.

Postal code
48118
Single source Value from one source, not cross-checked.
City
Chelsea
County
Washtenaw FIPS 26161
State
Michigan
Country
United States
Coordinates
42.3207, -84.0334 — precision precise (locality)
View on OpenStreetMap
Population
13,088 (ZCTA, ACS 5-year)
Population density
152 / sq mi
Land area
86.2 sq mi (223.4 km²) (ZCTA, ACS 5-year)
Median household income
$87,934
Per-capita income
$54,143
Median age
48.8
Households
5,611
Housing units
5,864
Median home value
$348,500
Median gross rent
$1,576 / month
Congressional district
MI-6 (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 Jan (avg low 16°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F313444587079828074614736
Avg low °F161725374857615951403123
Precip in2.42.02.23.03.83.63.53.62.73.12.62.1

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

Places in ZIP 48118

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