US ZIP Code
48039

Marine City, MI

St. Clair County  ·  Michigan

● Active
👥 7,466 Population
💰 $76,304 Median HH Income
≈ Avg ↑ 51% since 2019
🎂 46.8 Median Age ↑ 2% since 2019
🏠 $170,800 Median Home Value
▼ 39% below avg ↑ 15% since 2019
🎓 31.0% College Grads
▼ 20% below avg
📊 5.6% Unemployment
▲ 14% above avg ↑ 7% since 2019
ZIP Code Details
ZIP Code48039
CityMarine City
StateMichigan (MI)
CountySt. Clair County
Area Code810
Elevation593 ft
Latitude42.692907
Longitude-82.546478
TimezoneDetroit (DST)
FIPS26147
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.9% (3,723) Female 50.1% (3,743) ♀

Race & Ethnicity

White: 96%Hispanic: 1.2%Asian: 0.2%Other: 1.5%Race
White96.0%
Hispanic1.2%
Asian0.2%
Other1.5%

Age Breakdown

Under 5
4%
5–17
15%
18–24
7%
25–44
20%
45–64
30%
65+
11%

Key Indicators

Median Age46.8 yrs ↑ 2% since 2019
Avg Household Size2.28
Below Poverty6.4% ▼ 36% below avg
College Grads31.0% ▼ 20% below avg
Unemployment5.6% ▲ 14% above avg
No HS Diploma62 (1.2%)
HS Graduate1,931 (37.6%)
Some College826 (16.1%)
Associates724 (14.1%)
Bachelors523 (10.2%)
Graduate Degree1,072 (20.9%)

Education

No HS: 1.2%HS Grad: 37.6%Some College: 16.1%Associates: 14.1%Bachelors: 10.2%Graduate: 20.9%Edu
No HS1.2%
HS Grad37.6%
Some College16.1%
Associates14.1%
Bachelors10.2%
Graduate20.9%
Housing & Income

Housing Tenure

Owner: 89.2%Renter: 10.8%Tenure
Owner89.2%
Renter10.8%

Home Value Distribution

Under $50k
8%
$50k–100k
6%
$100k–150k
27%
$150k–200k
17%
$200k–300k
25%
$300k–500k
12%
Over $500k
5%

Financials

Median HH Income$76,304 ≈ Avg ↑ 51% since 2019
Median Home Value$170,800 ▼ 39% below avg ↑ 15% since 2019
Home/Income Ratio2.2x (nat avg ~3.5x)
Median Rent$879/mo ↑ 5% since 2019
Total Units3,701
Vacant Units421
Avg HH Size2.28

Income Distribution

Under $25k
15%
$25k–50k
17%
$50k–75k
15%
$75k–100k
21%
$100k–150k
16%
$150k–200k
11%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
87%
Walked
5%
Work From Home
8%

Commute Time

Under 15 min
30%
15–30 min
23%
30–45 min
19%
Over 45 min
28%
Housing Stock

Year Built

Before 1940
6%
1940s–1950s
9%
1960s–1970s
14%
1980s–1990s
11%
2000+
60%

Summary

Total Units3,701
Vacant421
Owner Occupied89.2%
Renter Occupied10.8%
Avg HH Size2.28
Frequently Asked Questions
ZIP code 48039 is in Marine City, MI, in St. Clair County.
ZIP code 48039 is located in Michigan (MI).
ZIP code 48039 is in St. Clair County, MI.
ZIP 48039 observes the Detroit timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 48039 is 7,466 people (ACS 2023).
The median household income in ZIP code 48039 is $76,304 (ACS 2023).
The median home value in ZIP 48039 is $170,800 (ACS 2023).
About ZIP Code 48039

ZIP code 48039 is located in Marine City, Michigan, within St. Clair County. With a population of 7,466, this is a lightly populated ZIP code with a mature community — the median age is 46.8 years. Economically, 48039 is a middle-income ZIP code: the median household income of $76,304 is near the national average.

Real estate in ZIP code 48039 represents an affordable housing market. The median home value of $170,800 is below the national average. Renters can expect to pay around $879 per month in median rent. Homeownership is strong here — 89.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 15% since 2019.

The population of 48039 is primarily White (96.00%). Residents are moderately educated — 31.0% hold a bachelor's degree or higher, which is below the national average. Poverty affects a relatively small share of residents at 6.4%. Household income has grown by 51% since 2019.

The unemployment rate in 48039 stands at 5.6%, which is near the national average. As in most parts of the country, driving alone is the dominant commute mode at 77%.

Overall, ZIP code 48039 in Marine City, MI is characterized as middle-income, moderately educated, a mature community, and predominantly owner-occupied. With 7,466 residents, a median household income of $76,304, and a median home value of $170,800, it offers a clear picture of life in this part of Michigan.