55803 ZIP Code — Duluth, MN

Saint Louis County, Minnesota

ZIP code 55803 is located in Duluth, Minnesota, within Saint Louis County. It covers approximately 295.45 square miles and serves a population of 17,734 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 218.

About ZIP code 55803

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $287,300. Owner-occupancy is high at 82%, well above the national average.

Median household income is $99,619. The poverty rate of 7% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.

Educational attainment is high — 47% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 55803 reflects a community defined by high homeownership and a significant Social Security-dependent population.

17,734

population

295.45

sq mi land

Standard

ZIP type

Central (CT)

timezone

55803 ZIP code map

Cities in ZIP code 55803

Below are the cities the US Postal Service accepts for ZIP code 55803. Using any city not on this list may result in mail delivery delays.

City	Status
Duluth	Acceptable
Duluth	Preferred

Nearby ZIP codes

55804 Duluth (10 mi) 55811 Duluth (12.7 mi) 55812 Duluth (14.2 mi) 55805 Duluth (14.8 mi) 55806 Duluth (17 mi) 55802 Duluth (18.2 mi) 55724 Cotton (18.5 mi) 55810 Duluth (19.4 mi) 55807 Duluth (19.7 mi)

Demographics updated 05/2026

Population
Total population	17,734
Population density	60 / sq mi
State FIPS	27
County FIPS	137

Geography
Land area	295.45 sq mi
Water area	31.10 sq mi
Latitude	47.0156
Longitude	-92.0883
Timezone	Central (CT)
Area code	218

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.7%	44.3%	33.6%
$50k – $100k	32.5%	31.0%	31.5%
$100k – $200k	33.9%	20.5%	26.5%
Over $200k	7.0%	4.1%	8.5%

Demographics & statistics

17,734

Population

People per sq mi

43.3

Median age

$99,619

Median household income

$48,300

Per capita income

$287,300

Median home value

$1,332

Median monthly rent

82.2%

Home ownership

7.2%

Poverty rate

4.1%

Unemployment

7,323

Housing units

46.8%

Bachelor's or higher

Age distribution

Male Female

426

Under 5

405

477

5–9

453

480

10–14

455

488

15–19

464

774

20–24

736

807

25–34

767

1,302

35–44

1,236

911

45–54

865

802

55–59

762

740

60–64

702

1,139

65–74

1,081

516

75–84

491

233

85+

222

← Male

Female →

Age summary

Group	Count	%
Under 18	3,338	18.8%
18 and over	14,396	81.2%
65 and over	3,682	20.8%
Median age	43.3 years

Race & ethnicity

White 95.2%

Two or more races 2.8%

Asian 0.7%

Hispanic or Latino 0.7%

American Indian / Alaska Native 0.3%

Black or African American 0.2%

Other race 0.1%

Group	Count	%
White	17,002	95.2%
Two or more races	494	2.8%
Asian	132	0.7%
Hispanic or Latino	122	0.7%
American Indian / Alaska Native	48	0.3%
Black or African American	44	0.2%
Other race	14	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.7%	44.3%	33.6%
$50k – $100k	32.5%	31.0%	31.5%
$100k – $200k	33.9%	20.5%	26.5%
Over $200k	7.0%	4.1%	8.5%

Under $10k 3.7%

$10k–$15k 2.3%

$15k–$25k 3.9%

$25k–$35k 5.2%

$35k–$50k 8.0%

$50k–$75k 13.4%

$75k–$100k 13.7%

$100k–$150k 26.9%

$150k–$200k 13.0%

$200k+ 9.9%

Range	% of households
Under $10k	3.7%
$10k–$15k	2.3%
$15k–$25k	3.9%
$25k–$35k	5.2%
$35k–$50k	8.0%
$50k–$75k	13.4%
$75k–$100k	13.7%
$100k–$150k	26.9%
$150k–$200k	13.0%
$200k+	9.9%
Median income	$99,619

Housing

Home values

Under $50k 1.6%

$50k–$100k 3.7%

$100k–$150k 6.1%

$150k–$200k 9.5%

$200k–$300k 33.8%

$300k–$500k 31.9%

$500k–$1M 13.0%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$287,300
Median rent / month	$1,332
Owner occupied	82.2%
Renter occupied	17.8%
Vacant	12.8%
Single-family detached	88.7%
Large apartment buildings	7.2%
Mobile homes	2.0%
Median rooms	6.0
Avg household size (owned)	2.41

Year built

Era	%
2020 or later	0.0%
2010–2019	7.7%
2000–2009	8.7%
1990–1999	10.4%
1980–1989	7.9%
1970–1979	11.6%
1960–1969	10.8%
1950–1959	14.8%
1940–1949	7.1%
1939 or earlier	21.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.8%
1 bedroom	7.9%
2 bedrooms	25.7%
3 bedrooms	42.7%
4 bedrooms	17.5%
5+ bedrooms	4.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.0%
1 vehicle	23.7%
2 vehicles	44.1%
3 or more	29.2%

Heating fuel

Fuel type	%
Utility gas	45.3%
Electricity	15.4%
Propane / LP gas	27.7%
Fuel oil	6.6%
Wood	3.6%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	4,240	56.1%
Cohabiting couple	649	8.6%
Male householder, no spouse	1,360	18.0%
Female householder, no spouse	1,309	17.3%
Households with children under 18	1,789	23.7%
Households with seniors (65+)	2,564	33.9%
Average household size	2.33

Marital status

Status	Male	Female
Never married	30.7%	22.3%
Married	56.3%	59.0%
Separated	0.6%	0.5%
Widowed	1.7%	7.8%
Divorced	10.6%	10.5%

Education

Less than 9th grade 0.6%

Some HS, no diploma 2.3%

HS graduate 17.8%

Some college, no degree 20.2%

Associate's degree 12.3%

Bachelor's degree 26.3%

Graduate / professional 20.4%

Metric	%
HS diploma or higher	97.1%
Bachelor's or higher	46.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	223	5.4%
Kindergarten	219	5.3%
Elementary school	1,465	35.5%
High school	725	17.6%
College / grad school	1,493	36.2%

Employment

Industry of employment

Education & healthcare 32.5%

Retail trade 9.8%

Professional & management 9.4%

Construction 9.1%

Manufacturing 7.9%

Arts, food & hospitality 7.1%

Public administration 6.5%

Finance & real estate 5.0%

Transportation & utilities 4.8%

Other services 4.0%

Wholesale trade 1.8%

Agriculture & mining 1.4%

Information 0.7%

Occupation

Category	%
Management, business & arts	49.8%
Service	14.1%
Sales & office	17.3%
Natural resources & construction	9.6%
Production & transportation	9.2%

Employment type

Type	%
Private sector	78.3%
Government	17.3%
Self-employed	4.1%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	77.6%
Carpool	8.1%
Public transit	0.7%
Walk	2.8%
Work from home	8.5%
Other means	2.3%
Avg commute (minutes)	23.3

Poverty

All people 7.2%

Under 18 years 0.8%

18 and over 8.6%

Married-couple families 1.5%

Female-led households 0.8%

Income support

Source	% of households
Social Security	35.3%
Retirement income	28.3%
Supplemental Security	2.6%
Cash public assistance	1.7%
Food stamps / SNAP	2.3%

Health indicators

Condition	%
Obesity	30.4%
High blood pressure	28.9%
High cholesterol	31.0%
Diabetes	8.3%
Heart disease	5.7%
Stroke	2.6%
Asthma	9.1%
Arthritis	24.7%
Kidney disease	2.6%
Pulmonary disease	5.1%
Cancer	6.9%

Behavior / access	%
Smoking	17.0%
Binge drinking	21.7%
No physical activity	17.5%
Less than 7 hrs sleep	29.9%
Depression	23.4%
Fair or poor health	10.3%
Poor mental health	13.1%
Poor physical health	8.7%
No health insurance	8.3%
Visited doctor (checkup)	69.0%
Visited dentist	68.9%
Cholesterol screening	90.3%
Teeth loss	9.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,183	8.3%

Disability	%
Any disability	10.2%
Under 18	3.2%
18–64 years	7.0%
65 and over	25.9%

Health insurance coverage

Type	%
Private insurance	86.5%
Public insurance	30.3%
No insurance	2.9%
Uninsured under 19	1.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	16,903	95.3%
Spanish	56	0.3%
Other Indo-European	20	0.1%
Asian & Pacific Islander	2	0.0%
Other languages	34	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	17,387	98.0%
Born in same state	17,299	97.5%
Born in different state	13,206	74.5%
Foreign born	88	0.5%
Naturalized citizen	347	2.0%
Not a US citizen	240	69.2%

Ancestry

Ancestry	Count	%
Polish	2,854	16.1%
Italian	1,768	10%
French	1,107	6.2%
Arab	712	4%
Dutch	290	1.6%

Ancestry	Count	%
German	249	1.4%
English	212	1.2%
Irish	22	0.1%
Norwegian	14	0.1%

Technology access

Metric	% of households
Computer access	42.6%
Internet access	92.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 55803

What city is ZIP code 55803 in?

ZIP code 55803 is primarily assigned to Duluth, Minnesota.

What county is ZIP code 55803 in?

ZIP code 55803 falls within Saint Louis County, Minnesota.

Is ZIP code 55803 mostly owner-occupied?

82% of occupied units in ZIP code 55803 are owner-occupied, well above the national average.

How educated is the population of ZIP code 55803?

47% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 55803 have a large retiree population?

35% of households in ZIP code 55803 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 55803?

ZIP code 55803 has an estimated population of 17,734 residents, with a density of 60 people per square mile.

What timezone is ZIP code 55803 in?

ZIP code 55803 observes the CST timezone.