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Michigan ZIP Codes
Mackinac County
Saint Ignace, MI
49781
49781 ZIP Code — Saint Ignace, MI
Mackinac County, Michigan
ZIP code 49781 is located in
Saint Ignace ,
Michigan ,
within Mackinac County .
It covers approximately 81.52 square miles and serves a population of
3,628 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 906 .
About ZIP code 49781
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $142,700. Owner-occupancy sits near the national average at 71%.
Median household income is $59,907. Poverty affects 19% of residents, above the national average. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with retail trade as the leading industry. The average commute of 20 minutes is near the national average.
Educational attainment is near the national average, with 21% of residents holding a bachelor's degree or higher.
Health indicators show elevated rates of smoking (24%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 13% of civilians, above the national average of 7%.
Overall, ZIP code 49781 reflects a community defined by economic challenges above the national average, a strong veteran community, and a significant Social Security-dependent population.
49781 ZIP code map
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Cities in ZIP code 49781
Below are the cities the US Postal Service accepts for ZIP code 49781. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,628
Population density
45 / sq mi
State FIPS
26
County FIPS
097
Geography
Land area
81.52 sq mi
Water area
58.12 sq mi
Latitude
45.9976
Longitude
-84.6500
Timezone
Eastern (ET)
Area code
906
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.4%
50.8%
42.6%
$50k – $100k
33.7%
34.2%
31.1%
$100k – $200k
15.4%
12.1%
20.6%
Over $200k
1.5%
2.8%
5.7%
Demographics & statistics
$59,907
Median household income
$142,700
Median home value
21.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 508 14.0%
18 and over 3,120 86.0%
65 and over 905 24.9%
Median age 49.9 years
Race & ethnicity
American Indian / Alaska Native
23.7%
Black or African American
7.6%
Native Hawaiian / Pacific Islander
0.3%
Group Count %
White 1,987 53.5%
American Indian / Alaska Native 881 23.7%
Two or more races 368 9.9%
Black or African American 281 7.6%
Hispanic or Latino 83 2.2%
Asian 74 2%
Other race 26 0.7%
Native Hawaiian / Pacific Islander 11 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.4%
50.8%
42.6%
$50k – $100k
33.7%
34.2%
31.1%
$100k – $200k
15.4%
12.1%
20.6%
Over $200k
1.5%
2.8%
5.7%
Range % of households
Under $10k 3.3%
$10k–$15k 8.0%
$15k–$25k 9.9%
$25k–$35k 9.0%
$35k–$50k 11.2%
$50k–$75k 22.2%
$75k–$100k 11.9%
$100k–$150k 18.5%
$150k–$200k 3.4%
$200k+ 2.6%
Median income $59,907
Housing
Housing overview
Metric Value
Median home value $142,700
Median rent / month $674
Owner occupied 70.6%
Renter occupied 29.4%
Vacant 21.8%
Single-family detached 78.6%
Large apartment buildings 1.8%
Mobile homes 5.0%
Median rooms 5.7
Avg household size (owned) 2.11
Year built
Era %
2020 or later 0.1%
2010–2019 5.1%
2000–2009 10.5%
1990–1999 15.4%
1980–1989 13.4%
1970–1979 11.5%
1960–1969 9.7%
1950–1959 11.7%
1940–1949 7.9%
1939 or earlier 14.7%
Bedrooms
Size % of units
No bedroom (studio) 2.2%
1 bedroom 9.5%
2 bedrooms 27.8%
3 bedrooms 46.1%
4 bedrooms 9.0%
5+ bedrooms 5.4%
Vehicles per household
Vehicles % of households
No vehicle 10.5%
1 vehicle 38.4%
2 vehicles 38.9%
3 or more 12.2%
Heating fuel
Fuel type %
Utility gas 55.8%
Electricity 22.8%
Propane / LP gas 17.1%
Fuel oil 1.3%
Wood 1.4%
No fuel used 0.9%
Households & families
Household type Count %
Married-couple family 735 40.7%
Cohabiting couple 135 7.5%
Male householder, no spouse 331 18.3%
Female householder, no spouse 603 33.4%
Households with children under 18 414 22.9%
Households with seniors (65+) 639 35.4%
Average household size 1.95
Marital status
Status Male Female
Never married 33.7% 25.7%
Married 50.1% 48.6%
Separated 0.0% 0.7%
Widowed 3.8% 11.1%
Divorced 12.4% 14.0%
Education
Some college, no degree
21.6%
Graduate / professional
8.3%
Metric %
HS diploma or higher 92.4%
Bachelor's or higher 21.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 37 7.5%
Kindergarten 35 7.1%
Elementary school 159 32.2%
High school 156 31.6%
College / grad school 107 21.7%
Employment
Industry of employment
Arts, food & hospitality
16.7%
Public administration
14.5%
Education & healthcare
14.0%
Finance & real estate
5.9%
Professional & management
5.1%
Transportation & utilities
4.7%
Agriculture & mining
1.6%
Occupation
Category %
Management, business & arts 33.4%
Service 27.2%
Sales & office 21.9%
Natural resources & construction 8.4%
Production & transportation 9.1%
Employment type
Type %
Private sector 73.9%
Government 20.0%
Self-employed 6.1%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 71.7%
Carpool 4.7%
Public transit 13.6%
Walk 3.0%
Work from home 4.6%
Other means 2.5%
Avg commute (minutes) 20.4
Poverty
Married-couple families
2.9%
Female-led households
31.9%
Income support
Source % of households
Social Security 41.7%
Retirement income 32.8%
Supplemental Security 5.8%
Cash public assistance 1.4%
Food stamps / SNAP 16.3%
Health indicators
Condition %
Obesity 39.7%
High blood pressure 37.6%
High cholesterol 36.0%
Diabetes 14.3%
Heart disease 8.6%
Stroke 4.3%
Asthma 12.4%
Arthritis 34.1%
Kidney disease 3.7%
Pulmonary disease 10.0%
Cancer 7.7%
Behavior / access %
Smoking 24.1%
Binge drinking 17.8%
No physical activity 25.1%
Less than 7 hrs sleep 34.0%
Depression 23.0%
Fair or poor health 19.1%
Poor mental health 17.5%
Poor physical health 13.8%
No health insurance 9.8%
Visited doctor (checkup) 75.7%
Visited dentist 65.4%
Cholesterol screening 91.7%
Teeth loss 16.3%
Veterans & disability
Veterans Count %
Civilian veterans 402 13.0%
Disability %
Any disability 20.9%
Under 18 14.7%
18–64 years 16.5%
65 and over 35.8%
Health insurance coverage
Type %
Private insurance 61.6%
Public insurance 51.0%
No insurance 10.8%
Uninsured under 19 4.9%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,502 96.5%
Spanish 74 2.1%
Other Indo-European 3 0.1%
Asian & Pacific Islander 24 0.7%
Other languages 15 0.4%
Place of birth & citizenship
Origin Count %
Native born (US) 3,317 91.4%
Born in same state 3,314 91.3%
Born in different state 3,052 84.1%
Foreign born 3 0.1%
Naturalized citizen 311 8.6%
Not a US citizen 67 21.5%
Ancestry
Ancestry Count %
French 404 11.1%
Italian 372 10.3%
German 108 3%
Arab 75 2.1%
English 64 1.8%
Ancestry Count %
Polish 55 1.5%
Dutch 31 0.9%
Irish 15 0.4%
Norwegian 4 0.1%
Technology access
Metric % of households
Computer access 49.7%
Internet access 92.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 49781
What city is ZIP code 49781 in?
ZIP code 49781 is primarily assigned to Saint Ignace, Michigan.
What county is ZIP code 49781 in?
ZIP code 49781 falls within Mackinac County, Michigan.
What is the poverty rate in ZIP code 49781?
19% of residents in ZIP code 49781 live below the poverty line, above the national average.
Does ZIP code 49781 have a large retiree population?
42% of households in ZIP code 49781 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 49781 have a large veteran population?
13% of civilians in ZIP code 49781 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 49781?
The median home value in ZIP code 49781 is $142,700.
What timezone is ZIP code 49781 in?
ZIP code 49781 observes the EST timezone.
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