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Michigan ZIP Codes
Alger County
Trenary, MI
49891
49891 ZIP Code — Trenary, MI
Alger County, Michigan
ZIP code 49891 is located in
Trenary ,
Michigan ,
within Alger County .
It covers approximately 72.80 square miles and serves a population of
619 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 906 .
About ZIP code 49891
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 $150,700. Owner-occupancy is high at 96%, well above the national average.
Median household income is $56,250. 67% 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. An above-average commute of 43 minutes suggests many residents work outside the immediate area.
College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (23%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 17% of civilians, above the national average of 7%.
Overall, ZIP code 49891 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
49891 ZIP code map
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Cities in ZIP code 49891
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
619
Population density
9 / sq mi
State FIPS
26
County FIPS
003
Geography
Land area
72.80 sq mi
Water area
0.31 sq mi
Latitude
46.2460
Longitude
-87.0222
Timezone
Eastern (ET)
Area code
906
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
47.5%
54.5%
42.6%
$50k – $100k
43.2%
33.2%
31.1%
$100k – $200k
9.3%
11.2%
20.6%
Over $200k
0.0%
1.2%
5.7%
Demographics & statistics
$56,250
Median household income
$150,700
Median home value
$1,375
Median monthly rent
16.7%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 146 23.6%
18 and over 473 76.4%
65 and over 147 23.7%
Median age 47.9 years
Race & ethnicity
American Indian / Alaska Native
0.6%
Group Count %
White 603 97.4%
Two or more races 12 1.9%
American Indian / Alaska Native 4 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
47.5%
54.5%
42.6%
$50k – $100k
43.2%
33.2%
31.1%
$100k – $200k
9.3%
11.2%
20.6%
Over $200k
0.0%
1.2%
5.7%
Range % of households
Under $10k 2.4%
$10k–$15k 2.4%
$15k–$25k 12.0%
$25k–$35k 15.3%
$35k–$50k 9.6%
$50k–$75k 26.3%
$75k–$100k 12.9%
$100k–$150k 11.0%
$150k–$200k 4.8%
$200k+ 3.3%
Median income $56,250
Housing
Housing overview
Metric Value
Median home value $150,700
Median rent / month $1,375
Owner occupied 96.2%
Renter occupied 3.8%
Vacant 46.1%
Single-family detached 90.5%
Large apartment buildings 0.0%
Mobile homes 9.3%
Median rooms 5.1
Avg household size (owned) 2.84
Year built
Era %
2020 or later 0.0%
2010–2019 1.8%
2000–2009 9.0%
1990–1999 15.7%
1980–1989 4.1%
1970–1979 12.1%
1960–1969 16.5%
1950–1959 13.4%
1940–1949 9.5%
1939 or earlier 17.8%
Bedrooms
Size % of units
No bedroom (studio) 5.9%
1 bedroom 9.8%
2 bedrooms 35.6%
3 bedrooms 36.9%
4 bedrooms 11.9%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 0.5%
1 vehicle 23.4%
2 vehicles 45.9%
3 or more 30.1%
Heating fuel
Fuel type %
Utility gas 27.8%
Propane / LP gas 34.4%
Fuel oil 3.8%
Wood 28.2%
Households & families
Household type Count %
Married-couple family 114 54.5%
Cohabiting couple 26 12.4%
Male householder, no spouse 24 11.5%
Female householder, no spouse 45 21.5%
Households with children under 18 51 24.4%
Households with seniors (65+) 121 57.9%
Average household size 2.96
Marital status
Status Male Female
Never married 24.7% 28.3%
Married 53.0% 42.0%
Separated 1.8% 5.6%
Widowed 7.8% 18.9%
Divorced 12.8% 5.2%
Education
Some college, no degree
22.6%
Graduate / professional
4.0%
Metric %
HS diploma or higher 95.3%
Bachelor's or higher 16.7%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 5 3.9%
Elementary school 65 50.8%
High school 37 28.9%
College / grad school 21 16.4%
Employment
Industry of employment
Education & healthcare
30.7%
Arts, food & hospitality
9.4%
Transportation & utilities
6.4%
Public administration
5.9%
Finance & real estate
4.5%
Professional & management
3.0%
Agriculture & mining
0.5%
Occupation
Category %
Management, business & arts 34.7%
Service 16.3%
Sales & office 19.3%
Natural resources & construction 9.4%
Production & transportation 20.3%
Employment type
Type %
Private sector 74.3%
Government 20.8%
Self-employed 5.0%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 63.4%
Carpool 27.2%
Public transit 0.0%
Walk 0.0%
Work from home 9.4%
Other means 0.0%
Avg commute (minutes) 43.2
Poverty
Married-couple families
2.6%
Female-led households
0.0%
Income support
Source % of households
Social Security 66.5%
Retirement income 42.6%
Supplemental Security 4.8%
Cash public assistance 2.9%
Food stamps / SNAP 13.4%
Health indicators
Condition %
Obesity 39.4%
High blood pressure 40.3%
High cholesterol 39.4%
Diabetes 13.6%
Heart disease 9.6%
Stroke 4.2%
Asthma 10.7%
Arthritis 36.0%
Kidney disease 3.7%
Pulmonary disease 10.5%
Cancer 8.8%
Behavior / access %
Smoking 22.9%
Binge drinking 17.0%
No physical activity 24.7%
Less than 7 hrs sleep 32.9%
Depression 21.4%
Fair or poor health 18.2%
Poor mental health 15.6%
Poor physical health 13.1%
No health insurance 10.8%
Visited doctor (checkup) 75.2%
Visited dentist 65.6%
Cholesterol screening 92.2%
Teeth loss 15.6%
Veterans & disability
Veterans Count %
Civilian veterans 81 17.1%
Disability %
Any disability 19.9%
Under 18 13.7%
18–64 years 15.6%
65 and over 35.4%
Health insurance coverage
Type %
Private insurance 57.7%
Public insurance 63.0%
No insurance 3.2%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 588 95.0%
Spanish 0 0.0%
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) 619 100.0%
Born in same state 619 100.0%
Born in different state 551 89.0%
Foreign born 0 0.0%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Italian 66 10.7%
French 46 7.4%
German 25 4%
Arab 20 3.2%
Ancestry Count %
English 17 2.7%
Irish 4 0.6%
Polish 3 0.5%
Technology access
Metric % of households
Computer access 33.8%
Internet access 85.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 49891
What city is ZIP code 49891 in?
ZIP code 49891 is primarily assigned to Trenary, Michigan.
What county is ZIP code 49891 in?
ZIP code 49891 falls within Alger County, Michigan.
Does ZIP code 49891 have a large retiree population?
67% of households in ZIP code 49891 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 49891 mostly owner-occupied?
96% of occupied units in ZIP code 49891 are owner-occupied, well above the national average.
Does ZIP code 49891 have a large veteran population?
17% of civilians in ZIP code 49891 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 49891?
The median home value in ZIP code 49891 is $150,700.
What timezone is ZIP code 49891 in?
ZIP code 49891 observes the EST timezone.
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