Duluth, MN-WI Metro Area

The Duluth, MN-WI metro area is made up of 3 counties in Minnesota and Wisconsin: St. Louis, Douglas, and Carlton, largest first. About 281,219 people lived there on July 1, 2025 (Census estimate), 0.2% more than in April 2020.

Carlton County, outlyingSt. Louis County, centralDouglas County, centralDuluth
Central Outlying 3 counties in Minnesota and Wisconsin
Population, July 2025
281,219 0.2% more than in April 2020
Type
Metropolitan statistical area
Counties
3: 2 central, 1 outlying
Land area
8,414 sq mi (21,791 km²)
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
States
Minnesota, Wisconsin
Combined statistical area
Duluth-Grand Rapids, MN-WI
CBSA code
20260

Counties in the Duluth, MN-WI metro area, largest first

CountyRolePopulation, July 2025Share of the area
St. Louis CountyMinnesotaCentral200,51871.3%
Douglas CountyWisconsinCentral43,99015.6%
Carlton CountyMinnesotaOutlying36,71113.1%

A central county holds the area’s core, an urban area of at least 50,000 people. An outlying county is in the area because of commuting: at least a quarter of its workers have jobs in the central counties, or at least a quarter of the people working there live in them. A county belongs to one metro or micro area at most, and it counts whole, countryside included.

Principal city

  1. Duluth87,093 people

OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.

Part of the Duluth-Grand Rapids, MN-WI combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other area in this one is

  1. Grand Rapids, MN Micro Area45,404 people

Bordering metro and micro areas, nearest first

Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.

  1. Grand Rapids, MN Micro Area73 mi northwest

Before using this answer on a form

A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.

Find the metro area where you are now, find your county, or see every metro and micro area by population.

See this area on Census.gov ↗