ZIP code · Duluth · Minnesota · United States

ZIP code 55804 — Duluth

ZIP code 55804 serves Duluth, Minnesota.

Postal code
55804
Single source Value from one source, not cross-checked.
City
Duluth
County
St. Louis FIPS 27137
State
Minnesota
Country
United States
Coordinates
46.8551, -92.0074 — precision precise (locality)
View on OpenStreetMap
Population
16,018 (ZCTA, ACS 5-year)
Population density
170 / sq mi
Land area
94.1 sq mi (243.6 km²) (ZCTA, ACS 5-year)
Median household income
$108,231
Per-capita income
$55,395
Median age
41.8
Households
6,254
Housing units
6,720
Median home value
$286,800
Median gross rent
$1,346 / month
Congressional district
MN-8 (119th Congress)
USDA hardiness zone
4b (-25 to -20 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Chicago (UTC−6 / UTC−5 DST)
Area code
218
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 75°F), coldest Jan (avg low 4°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F212635455666757466523927
Avg low °F4819314149586051392613

NOAA 1991–2020 climate normals from the nearest station: DULUTH HARBOR STN (7.1 mi) · NOAA NCEI

Places in ZIP 55804

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