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Minnesota ZIP Codes
Nicollet County
Mankato, MN
56003
56003 ZIP Code — Mankato, MN
Nicollet County, Minnesota
ZIP code 56003 is located in
Mankato ,
Minnesota ,
within Nicollet County .
It covers approximately 43.99 square miles and serves a population of
15,360 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 507 .
About ZIP code 56003
The housing stock consists of a mix of housing types. Most homes were built in the 2000s, giving the area an established character. Median home value is $242,300. Owner-occupancy is high at 77%, well above the national average.
The gap between median ($77,290) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 16 minutes is near the national average.
Educational attainment is near the national average, with 43% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 56003
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Nearby ZIP codes
Demographics
updated 08/2026
Population
Total population
15,360
Population density
349 / sq mi
State FIPS
27
County FIPS
103
Geography
Land area
43.99 sq mi
Water area
0.38 sq mi
Latitude
44.2120
Longitude
-94.0670
Timezone
Central (CT)
Area code
507
Economics
updated 08/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.1%
36.6%
33.6%
$50k – $100k
30.8%
32.0%
31.5%
$100k – $200k
26.6%
23.9%
26.5%
Over $200k
8.6%
7.5%
8.5%
Demographics & statistics
$77,290
Median household income
$242,300
Median home value
43.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 3,851 25.1%
18 and over 11,509 74.9%
65 and over 2,560 16.7%
Median age 38.1 years
Race & ethnicity
Black or African American
1.7%
Group Count %
White 13,741 87.2%
Two or more races 999 6.3%
Hispanic or Latino 397 2.5%
Black or African American 261 1.7%
Asian 243 1.5%
Other race 111 0.7%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.1%
36.6%
33.6%
$50k – $100k
30.8%
32.0%
31.5%
$100k – $200k
26.6%
23.9%
26.5%
Over $200k
8.6%
7.5%
8.5%
Range % of households
Under $10k 2.5%
$10k–$15k 3.6%
$15k–$25k 4.3%
$25k–$35k 8.1%
$35k–$50k 12.5%
$50k–$75k 16.9%
$75k–$100k 14.9%
$100k–$150k 19.5%
$150k–$200k 7.9%
$200k+ 9.9%
Median income $77,290
Housing
Housing overview
Metric Value
Median home value $242,300
Median rent / month $888
Owner occupied 76.5%
Renter occupied 23.5%
Vacant 2.7%
Single-family detached 65.5%
Large apartment buildings 6.6%
Mobile homes 6.4%
Median rooms 6.6
Avg household size (owned) 2.61
Year built
Era %
2020 or later 0.4%
2010–2019 7.0%
2000–2009 17.2%
1990–1999 11.9%
1980–1989 15.3%
1970–1979 13.7%
1960–1969 9.5%
1950–1959 10.2%
1940–1949 3.9%
1939 or earlier 10.8%
Bedrooms
Size % of units
No bedroom (studio) 2.5%
1 bedroom 8.0%
2 bedrooms 25.8%
3 bedrooms 30.1%
4 bedrooms 26.2%
5+ bedrooms 7.4%
Vehicles per household
Vehicles % of households
No vehicle 5.4%
1 vehicle 31.1%
2 vehicles 43.1%
3 or more 20.4%
Heating fuel
Fuel type %
Utility gas 73.2%
Electricity 18.4%
Propane / LP gas 5.3%
Fuel oil 0.8%
Wood 0.4%
No fuel used 0.5%
Households & families
Household type Count %
Married-couple family 2,941 46.1%
Cohabiting couple 501 7.8%
Male householder, no spouse 1,050 16.4%
Female householder, no spouse 1,893 29.6%
Households with children under 18 2,039 31.9%
Households with seniors (65+) 1,799 28.2%
Average household size 2.38
Marital status
Status Male Female
Never married 34.1% 28.4%
Married 51.1% 50.6%
Separated 2.3% 0.1%
Widowed 2.7% 8.5%
Divorced 9.7% 12.4%
Education
Some college, no degree
18.3%
Graduate / professional
12.8%
Metric %
HS diploma or higher 97.6%
Bachelor's or higher 43.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 310 8.5%
Kindergarten 241 6.6%
Elementary school 1,740 47.5%
High school 631 17.2%
College / grad school 739 20.2%
Employment
Industry of employment
Education & healthcare
31.9%
Professional & management
5.8%
Finance & real estate
5.0%
Transportation & utilities
4.5%
Arts, food & hospitality
4.5%
Public administration
1.8%
Agriculture & mining
1.3%
Occupation
Category %
Management, business & arts 44.8%
Service 11.6%
Sales & office 24.0%
Natural resources & construction 5.7%
Production & transportation 13.8%
Employment type
Type %
Private sector 81.4%
Government 14.2%
Self-employed 4.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 77.4%
Carpool 6.3%
Public transit 0.4%
Walk 2.5%
Work from home 8.5%
Other means 5.0%
Avg commute (minutes) 16.3
Poverty
Married-couple families
0.4%
Female-led households
19.9%
Income support
Source % of households
Social Security 28.2%
Retirement income 22.1%
Supplemental Security 1.3%
Cash public assistance 2.2%
Food stamps / SNAP 4.9%
Health indicators
Condition %
Obesity 32.0%
High blood pressure 25.5%
High cholesterol 26.7%
Diabetes 7.5%
Heart disease 5.0%
Stroke 2.3%
Asthma 8.7%
Arthritis 19.9%
Kidney disease 2.3%
Pulmonary disease 4.4%
Cancer 6.3%
Behavior / access %
Smoking 15.6%
Binge drinking 21.3%
No physical activity 18.2%
Less than 7 hrs sleep 26.3%
Depression 20.8%
Fair or poor health 9.6%
Poor mental health 13.2%
Poor physical health 7.9%
No health insurance 9.3%
Visited doctor (checkup) 71.5%
Visited dentist 69.5%
Cholesterol screening 88.9%
Teeth loss 8.8%
Veterans & disability
Veterans Count %
Civilian veterans 716 6.2%
Disability %
Any disability 10.1%
Under 18 4.9%
18–64 years 7.2%
65 and over 28.3%
Health insurance coverage
Type %
Private insurance 83.1%
Public insurance 30.5%
No insurance 3.8%
Uninsured under 19 4.9%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 14,372 93.6%
Spanish 108 0.8%
Other Indo-European 38 0.3%
Asian & Pacific Islander 47 0.3%
Other languages 6 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 14,934 97.2%
Born in same state 14,863 96.8%
Born in different state 11,894 77.4%
Foreign born 71 0.5%
Naturalized citizen 426 2.8%
Not a US citizen 239 56.1%
Ancestry
Ancestry Count %
Polish 2,367 15.4%
Italian 1,423 9.3%
French 831 5.4%
Arab 595 3.9%
Ancestry Count %
English 233 1.5%
Dutch 164 1.1%
German 37 0.2%
Technology access
Metric % of households
Computer access 41.6%
Internet access 93.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 56003
What city is ZIP code 56003 in?
ZIP code 56003 is primarily assigned to Mankato, Minnesota.
What county is ZIP code 56003 in?
ZIP code 56003 falls within Nicollet County, Minnesota.
What is the population of ZIP code 56003?
ZIP code 56003 has an estimated population of 15,360 residents, with a density of 349 people per square mile.
What is the typical home value in ZIP code 56003?
The median home value in ZIP code 56003 is $242,300.
What is the median household income in ZIP code 56003?
The median household income in ZIP code 56003 is $77,290, above the national median of ~$75,000.
What timezone is ZIP code 56003 in?
ZIP code 56003 observes the CST timezone.
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