What is the largest city in St. Louis County, MN?

Duluth is the largest city or town in St. Louis County, with about 87,093 residents.

How many ZIP codes are in St. Louis County?

St. Louis County includes 43 ZIP Code Tabulation Areas, including 55602, 55702, 55703, 55705, 55706.

What is the population of St. Louis County, MN?

About 200,123 people live in St. Louis County, based on American Community Survey 5-year estimates.

What counties border St. Louis County?

St. Louis County borders Itasca County, Douglas County, WI, Carlton County, Aitkin County, Koochiching County, Lake County.

St. Louis County, MN: Cities, ZIP Codes & Local Data

Population

200,123

Land area

6,248sq mi

People per sq mi

32

ZIP codes

43

St. Louis County at a glance

St. Louis County is 56% less dense than Minnesota as a whole.
By population, it ranks 6th among 87 counties in Minnesota.
The median household income is $70,069, 21% below the Minnesota median of $89,062.
A typical owner-occupied home is valued at $221,400 (33% below Minnesota) and median rent is $1,013 a month.
Its largest cities are Duluth (87,093), Hibbing (16,057) and Hermantown (10,218).

Local data for St. Louis County, MN

Counts from official public data

Housing and community stats

St. Louis County, MN, American Community Survey 2020-2024

Full profile

Median household income

$70,069

Poverty rate

13.2%

Median home value

$221,400

Prices +6.3% in a year

Median rent

$1,013/mo

Homeownership

71.2%

Bachelor's or higher

33.6%

Median age

41.2

Average commute

19.9 min

Largest reported origins and ancestries: German Americans (44,470), Norwegian Americans (24,397), Swedish Americans (19,525).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

5.4%

Aug 2026, +0.6 pts in a year

Average annual pay

$62,615

95,078 jobs, 2025

Income per person

$61,867

BEA, 2024

Federal spending

$2.68B

FY 2026, $13,363 per person

PPP loans

$440M

4,637 loans, 57,047 jobs reported

Campaign donations

$1.02M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

St. Louis County, MN, workers 16 and older. American Community Survey 5-year estimates

Drove alone74.1%
Carpooled7.6%
Public transit1.8%
Walked3.6%
Bicycle0.6%
Taxi, ride-hailing, motorcycle or other1.2%
Worked from home11.2%

Average one-way commute: 19.9 minutes for people who do not work from home.

Environment and hazard risk

St. Louis County, MN, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: cold wave

Storm events since 1996

2,085

Most often thunderstorm wind

Flood insurance policies

290

0.3% of homes, county

July high / Jan low

78° / -7°F

28.1 inches of rain a year

Hazards, floods and storm history Check a flood zone 84 historic places

Health statistics

Share of adults in St. Louis County, MN, CDC PLACES estimates

All 40 measures

Obesity

35.2%

U.S. 33.3% +1.9 pts

Diabetes

11.2%

U.S. 12.1% -0.9 pts

Smoking

15.2%

U.S. 12.8% +2.4 pts

Uninsured (18-64)

6.8%

U.S. 11.1% -4.3 pts

Cities, towns and ZIP codes in St. Louis County

Population shown

Frequently asked questions

What is the largest city in St. Louis County, MN?: Duluth is the largest city or town in St. Louis County, with about 87,093 residents.
How many ZIP codes are in St. Louis County?: St. Louis County includes 43 ZIP Code Tabulation Areas, including 55602, 55702, 55703, 55705, 55706.
What is the population of St. Louis County, MN?: About 200,123 people live in St. Louis County, based on American Community Survey 5-year estimates.
What counties border St. Louis County?: St. Louis County borders Itasca County, Douglas County, WI, Carlton County, Aitkin County, Koochiching County, Lake County.