55751 ZIP Code — Iron, MN

Saint Louis County, Minnesota

ZIP code 55751 is located in Iron, Minnesota, within Saint Louis County. It covers approximately 60.21 square miles and serves a population of 1,343 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 218.

About ZIP code 55751

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $175,200. Owner-occupancy is high at 94%, well above the national average.

Median household income is $75,461. The poverty rate of 7% is below the national average. 48% 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 24 minutes is near the national average.

College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 55751 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

1,343

population

60.21

sq mi land

Standard

ZIP type

Central (CT)

timezone

55751 ZIP code map

Cities in ZIP code 55751

Below are the cities the US Postal Service accepts for ZIP code 55751. Using any city not on this list may result in mail delivery delays.

City	Status
Iron	Acceptable
Iron	Preferred

Nearby ZIP codes

55768 Mountain Iron (6.4 mi) 55738 Forbes (8.2 mi) 55734 Eveleth (9.9 mi) 55746 Hibbing (10.6 mi) 55741 Gilbert (12.4 mi) 55719 Chisholm (15.3 mi) 55792 Virginia (16.5 mi) 55724 Cotton (19.4 mi)

Demographics updated 05/2026

Population
Total population	1,343
Population density	22 / sq mi
State FIPS	27
County FIPS	137

Geography
Land area	60.21 sq mi
Water area	0.71 sq mi
Latitude	47.4027
Longitude	-92.6540
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	31.5%	44.3%	33.6%
$50k – $100k	42.4%	31.0%	31.5%
$100k – $200k	24.9%	20.5%	26.5%
Over $200k	1.2%	4.1%	8.5%

Demographics & statistics

1,343

Population

People per sq mi

54.0

Median age

$75,461

Median household income

$36,397

Per capita income

$175,200

Median home value

$788

Median monthly rent

94.3%

Home ownership

6.7%

Poverty rate

2.4%

Unemployment

665

Housing units

14.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

144

65–74

131

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	283	21.1%
18 and over	1,060	78.9%
65 and over	396	29.5%
Median age	54.0 years

Race & ethnicity

White 95.6%

Two or more races 2.9%

Hispanic or Latino 1%

Black or African American 0.4%

Other race 0.1%

American Indian / Alaska Native 0.1%

Group	Count	%
White	1,296	95.6%
Two or more races	39	2.9%
Hispanic or Latino	13	1%
Black or African American	5	0.4%
Other race	2	0.1%
American Indian / Alaska Native	1	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	31.5%	44.3%	33.6%
$50k – $100k	42.4%	31.0%	31.5%
$100k – $200k	24.9%	20.5%	26.5%
Over $200k	1.2%	4.1%	8.5%

Under $10k 3.5%

$10k–$15k 2.5%

$15k–$25k 3.0%

$25k–$35k 7.4%

$35k–$50k 11.1%

$50k–$75k 21.9%

$75k–$100k 18.4%

$100k–$150k 22.8%

$150k–$200k 6.5%

$200k+ 2.8%

Range	% of households
Under $10k	3.5%
$10k–$15k	2.5%
$15k–$25k	3.0%
$25k–$35k	7.4%
$35k–$50k	11.1%
$50k–$75k	21.9%
$75k–$100k	18.4%
$100k–$150k	22.8%
$150k–$200k	6.5%
$200k+	2.8%
Median income	$75,461

Housing

Home values

Under $50k 9.6%

$50k–$100k 13.0%

$100k–$150k 20.8%

$150k–$200k 17.9%

$200k–$300k 27.7%

$300k–$500k 9.6%

$500k–$1M 1.4%

Housing overview

Metric	Value
Median home value	$175,200
Median rent / month	$788
Owner occupied	94.3%
Renter occupied	5.7%
Vacant	14.6%
Single-family detached	83.0%
Large apartment buildings	0.0%
Mobile homes	16.9%
Median rooms	5.5
Avg household size (owned)	2.22

Year built

Era	%
2020 or later	0.9%
2010–2019	4.4%
2000–2009	11.9%
1990–1999	7.9%
1980–1989	13.9%
1970–1979	22.7%
1960–1969	4.7%
1950–1959	14.2%
1940–1949	5.3%
1939 or earlier	14.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	2.1%
2 bedrooms	26.2%
3 bedrooms	52.4%
4 bedrooms	16.0%
5+ bedrooms	2.4%

Vehicles per household

Vehicles	% of households
No vehicle	2.3%
1 vehicle	15.9%
2 vehicles	44.6%
3 or more	37.2%

Heating fuel

Fuel type	%
Utility gas	1.7%
Electricity	13.1%
Propane / LP gas	50.1%
Fuel oil	18.1%
Wood	13.4%

Households & families

Household type	Count	%
Married-couple family	356	59.6%
Cohabiting couple	61	10.2%
Male householder, no spouse	112	18.8%
Female householder, no spouse	68	11.4%
Households with children under 18	152	25.5%
Households with seniors (65+)	266	44.6%
Average household size	2.25

Marital status

Status	Male	Female
Never married	18.7%	13.0%
Married	62.1%	67.5%
Separated	0.0%	0.6%
Widowed	1.9%	8.6%
Divorced	17.3%	10.3%

Education

Less than 9th grade 0.7%

Some HS, no diploma 2.9%

HS graduate 34.9%

Some college, no degree 30.5%

Associate's degree 16.4%

Bachelor's degree 10.3%

Graduate / professional 4.2%

Metric	%
HS diploma or higher	96.4%
Bachelor's or higher	14.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	19	9.0%
Kindergarten	16	7.5%
Elementary school	98	46.2%
High school	55	25.9%
College / grad school	24	11.3%

Employment

Industry of employment

Education & healthcare 24.6%

Transportation & utilities 12.0%

Agriculture & mining 11.3%

Retail trade 10.0%

Manufacturing 8.8%

Arts, food & hospitality 6.7%

Construction 5.6%

Public administration 4.4%

Finance & real estate 4.2%

Other services 4.0%

Wholesale trade 3.7%

Professional & management 3.5%

Information 1.1%

Occupation

Category	%
Management, business & arts	26.6%
Service	15.1%
Sales & office	14.6%
Natural resources & construction	21.0%
Production & transportation	22.7%

Employment type

Type	%
Private sector	76.8%
Government	20.2%
Self-employed	3.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	89.5%
Carpool	5.3%
Public transit	0.0%
Walk	0.5%
Work from home	4.3%
Other means	0.4%
Avg commute (minutes)	23.5

Poverty

All people 6.7%

Under 18 years 4.3%

18 and over 7.4%

Married-couple families 2.8%

Female-led households 11.8%

Income support

Source	% of households
Social Security	47.6%
Retirement income	37.4%
Supplemental Security	4.0%
Cash public assistance	2.5%
Food stamps / SNAP	3.2%

Health indicators

Condition	%
Obesity	32.3%
High blood pressure	30.9%
High cholesterol	32.2%
Diabetes	9.0%
Heart disease	6.1%
Stroke	2.8%
Asthma	9.1%
Arthritis	26.3%
Kidney disease	2.7%
Pulmonary disease	5.6%
Cancer	7.1%

Behavior / access	%
Smoking	19.9%
Binge drinking	21.7%
No physical activity	18.7%
Less than 7 hrs sleep	31.3%
Depression	23.6%
Fair or poor health	11.2%
Poor mental health	13.2%
Poor physical health	9.5%
No health insurance	9.0%
Visited doctor (checkup)	68.9%
Visited dentist	67.2%
Cholesterol screening	91.3%
Teeth loss	9.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	104	9.8%

Disability	%
Any disability	13.8%
Under 18	1.4%
18–64 years	9.5%
65 and over	30.1%

Health insurance coverage

Type	%
Private insurance	82.4%
Public insurance	45.9%
No insurance	2.9%
Uninsured under 19	3.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,251	93.1%
Spanish	3	0.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,339	99.7%
Born in same state	1,335	99.4%
Born in different state	1,125	83.8%
Foreign born	4	0.3%
Naturalized citizen	4	0.3%
Not a US citizen	4	100.0%

Ancestry

Ancestry	Count	%
Polish	210	15.6%
Italian	75	5.6%
French	62	4.6%
Arab	17	1.3%

Ancestry	Count	%
German	11	0.8%
English	8	0.6%
Dutch	7	0.5%
Irish	1	0.1%

Technology access

Metric	% of households
Computer access	44.5%
Internet access	89.4%

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

Frequently asked questions about ZIP code 55751

What city is ZIP code 55751 in?

ZIP code 55751 is primarily assigned to Iron, Minnesota.

What county is ZIP code 55751 in?

ZIP code 55751 falls within Saint Louis County, Minnesota.

Does ZIP code 55751 have an older population?

30% of residents in ZIP code 55751 are 65 or older, above the national average of ~17%.

Is ZIP code 55751 mostly owner-occupied?

94% of occupied units in ZIP code 55751 are owner-occupied, well above the national average.

Does ZIP code 55751 have a large retiree population?

48% of households in ZIP code 55751 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 55751?

15% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What timezone is ZIP code 55751 in?

ZIP code 55751 observes the CST timezone.