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Michigan ZIP Codes
Muskegon County
Casnovia, MI
49318
49318 ZIP Code — Casnovia, MI
Muskegon County, Michigan
ZIP code 49318 is located in
Casnovia ,
Michigan ,
within Muskegon County .
It covers approximately 20.06 square miles and serves a population of
1,326 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 616 .
About ZIP code 49318
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 $210,100. Owner-occupancy is high at 87%, well above the national average.
Median household income is $70,865. 39% 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 28 minutes is near the national average.
College attainment at 18% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (22%) compared to national benchmarks.
Overall, ZIP code 49318 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.
49318 ZIP code map
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Cities in ZIP code 49318
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
1,326
Population density
66 / sq mi
State FIPS
26
County FIPS
121
Geography
Land area
20.06 sq mi
Water area
0.17 sq mi
Latitude
43.2147
Longitude
-85.8254
Timezone
Eastern (ET)
Area code
616
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
41.8%
46.4%
42.6%
$50k – $100k
37.7%
34.3%
31.1%
$100k – $200k
16.8%
16.3%
20.6%
Over $200k
3.7%
3.0%
5.7%
Demographics & statistics
$70,865
Median household income
$210,100
Median home value
$1,108
Median monthly rent
17.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 309 23.3%
18 and over 1,017 76.7%
65 and over 248 18.7%
Median age 38.7 years
Race & ethnicity
Black or African American
1.5%
American Indian / Alaska Native
1.4%
Group Count %
White 1,154 82.4%
Two or more races 76 5.4%
Hispanic or Latino 75 5.4%
Asian 41 2.9%
Black or African American 21 1.5%
American Indian / Alaska Native 20 1.4%
Other race 14 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
41.8%
46.4%
42.6%
$50k – $100k
37.7%
34.3%
31.1%
$100k – $200k
16.8%
16.3%
20.6%
Over $200k
3.7%
3.0%
5.7%
Range % of households
Under $10k 4.0%
$10k–$15k 6.9%
$15k–$25k 0.8%
$25k–$35k 7.6%
$35k–$50k 10.5%
$50k–$75k 23.7%
$75k–$100k 19.7%
$100k–$150k 10.5%
$150k–$200k 8.4%
$200k+ 7.8%
Median income $70,865
Housing
Housing overview
Metric Value
Median home value $210,100
Median rent / month $1,108
Owner occupied 86.6%
Renter occupied 13.4%
Vacant 5.2%
Single-family detached 93.0%
Large apartment buildings 0.0%
Mobile homes 5.8%
Median rooms 6.2
Avg household size (owned) 2.52
Year built
Era %
2020 or later 0.0%
2010–2019 1.0%
2000–2009 12.2%
1990–1999 10.2%
1980–1989 5.0%
1970–1979 18.1%
1960–1969 10.6%
1950–1959 8.2%
1940–1949 9.8%
1939 or earlier 25.1%
Bedrooms
Size % of units
No bedroom (studio) 0.2%
1 bedroom 1.6%
2 bedrooms 13.9%
3 bedrooms 59.0%
4 bedrooms 21.3%
5+ bedrooms 4.0%
Vehicles per household
Vehicles % of households
No vehicle 2.3%
1 vehicle 26.1%
2 vehicles 39.7%
3 or more 31.9%
Heating fuel
Fuel type %
Utility gas 41.4%
Electricity 3.2%
Propane / LP gas 29.2%
Fuel oil 11.6%
Wood 12.8%
Households & families
Household type Count %
Married-couple family 283 59.5%
Cohabiting couple 24 5.0%
Male householder, no spouse 106 22.3%
Female householder, no spouse 63 13.2%
Households with children under 18 145 30.5%
Households with seniors (65+) 176 37.0%
Average household size 2.66
Marital status
Status Male Female
Never married 31.7% 19.2%
Married 52.1% 62.7%
Separated 0.9% 0.0%
Widowed 1.9% 12.9%
Divorced 13.4% 5.2%
Education
Some college, no degree
19.1%
Graduate / professional
4.9%
Metric %
HS diploma or higher 92.3%
Bachelor's or higher 17.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 11 4.7%
Kindergarten 26 11.1%
Elementary school 150 64.1%
High school 21 9.0%
College / grad school 26 11.1%
Employment
Industry of employment
Education & healthcare
22.9%
Professional & management
6.0%
Arts, food & hospitality
3.1%
Public administration
3.1%
Finance & real estate
2.4%
Agriculture & mining
2.2%
Transportation & utilities
1.5%
Occupation
Category %
Management, business & arts 35.5%
Service 7.5%
Sales & office 20.0%
Natural resources & construction 13.5%
Production & transportation 23.5%
Employment type
Type %
Private sector 82.8%
Government 12.8%
Self-employed 4.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 83.1%
Carpool 9.8%
Public transit 0.0%
Walk 0.9%
Work from home 4.7%
Other means 1.6%
Avg commute (minutes) 28.4
Poverty
Married-couple families
6.4%
Female-led households
10.7%
Income support
Source % of households
Social Security 38.9%
Retirement income 30.0%
Supplemental Security 9.0%
Cash public assistance 3.8%
Food stamps / SNAP 5.0%
Health indicators
Condition %
Obesity 37.1%
High blood pressure 32.3%
High cholesterol 34.4%
Diabetes 10.4%
Heart disease 6.1%
Stroke 2.8%
Asthma 10.9%
Arthritis 28.4%
Kidney disease 2.7%
Pulmonary disease 7.6%
Cancer 6.2%
Behavior / access %
Smoking 21.6%
Binge drinking 20.7%
No physical activity 20.8%
Less than 7 hrs sleep 32.0%
Depression 22.9%
Fair or poor health 14.3%
Poor mental health 16.8%
Poor physical health 11.0%
No health insurance 10.3%
Visited doctor (checkup) 72.5%
Visited dentist 66.9%
Cholesterol screening 90.7%
Teeth loss 12.3%
Veterans & disability
Veterans Count %
Civilian veterans 45 4.4%
Disability %
Any disability 17.4%
Under 18 4.2%
18–64 years 16.9%
65 and over 35.5%
Health insurance coverage
Type %
Private insurance 75.7%
Public insurance 35.8%
No insurance 2.6%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,223 92.2%
Spanish 19 1.6%
Other Indo-European 19 1.6%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 1,268 95.6%
Born in same state 1,264 95.3%
Born in different state 1,173 88.5%
Foreign born 4 0.3%
Naturalized citizen 58 4.4%
Not a US citizen 15 25.9%
Ancestry
Ancestry Count %
French 115 8.7%
Italian 110 8.3%
English 95 7.2%
Arab 48 3.6%
Norwegian 6 0.5%
Ancestry Count %
Dutch 6 0.5%
German 3 0.2%
Polish 2 0.2%
Irish 1 0.1%
Technology access
Metric % of households
Computer access 35.9%
Internet access 91.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 49318
What city is ZIP code 49318 in?
ZIP code 49318 is primarily assigned to Casnovia, Michigan.
What county is ZIP code 49318 in?
ZIP code 49318 falls within Muskegon County, Michigan.
Is ZIP code 49318 mostly owner-occupied?
87% of occupied units in ZIP code 49318 are owner-occupied, well above the national average.
Does ZIP code 49318 have a large retiree population?
39% of households in ZIP code 49318 receive Social Security income, suggesting a significant retiree or disability population.
What is the population of ZIP code 49318?
ZIP code 49318 has an estimated population of 1,326 residents, with a density of 66 people per square mile.
What is the typical home value in ZIP code 49318?
The median home value in ZIP code 49318 is $210,100.
What timezone is ZIP code 49318 in?
ZIP code 49318 observes the EST timezone.
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