Marine City ZIP Code List — Saint Clair County, MI

There is one unique ZIP code in Marine City, Michigan and it is 48039. Area code: 810.

ZIP codes

23.01

sq mi land

1.87

sq mi water

810

area code

Marine City, MI ZIP code map

About Marine City, MI

Marine City, Michigan, is a charming community located in Saint Clair County, known for its picturesque views and rich history. Nestled alongside the St. Clair River, this city boasts a vibrant waterfront and a tight-knit atmosphere that appeals to both residents and visitors. With a unique blend of small-town charm and modern amenities, Marine City offers a tranquil escape in the Great Lakes region.

Location & geography

Marine City is situated in the eastern part of Michigan, right at the edge of the St. Clair River, providing stunning waterfront views. It is surrounded by several nearby cities, including Port Huron, which is about 17 miles to the east, and Algonac, approximately 10 miles to the southwest. The terrain consists of a mix of land and water, with a total land area of 23.01 square miles and a water area of 1.87 square miles.

Community & economy

The character of Marine City is defined by its friendly residents and community-oriented events that foster a sense of belonging. The local economy features industries such as manufacturing and retail, alongside a strong focus on tourism, thanks to its scenic waterfront and historic sites. Daily life in Marine City reflects a balance of work and leisure, with outdoor activities and events that engage residents of all ages.

Transportation

Marine City is conveniently accessible via State Highway M-29, which runs through the city and connects it to other major routes. The nearest airport is the St. Clair County International Airport, located about 16 miles to the north in China Township. Public transit options are limited, so residents primarily rely on personal vehicles for transportation.

History

Marine City was founded in the early 19th century and quickly became a hub for shipping and trade due to its strategic location along the St. Clair River. Key industries during its early years included shipbuilding and timber, contributing to the city’s growth and development. One notable event in its history is the establishment of the Marine City Historical Society, which is dedicated to preserving the city's rich heritage.

Did you know?

A surprising fact about Marine City is its home to the historic Marine City Theatre, which has been a staple for local entertainment since 1942. Additionally, the city hosts an annual Art and Music Festival, which showcases local artists and musicians, drawing visitors from the surrounding regions.

ZIP codes for Marine City, MI (1)

ZIP code	City	County	Map
48039	Marine City	Saint Clair	View map

Demographics & statistics

7,486

Population

48.1

Median age

$70,969

Median household income

$34,469

Per capita income

$165,000

Median home value

$899

Median monthly rent

86.2%

Home ownership

9.3%

Poverty rate

5.9%

Unemployment

3,236

Housing units

17.6%

Bachelor's or higher

Age distribution

Male Female

184

Under 5

182

134

5–9

133

208

10–14

207

337

15–19

334

115

20–24

115

332

25–34

330

400

35–44

397

548

45–54

544

379

55–59

376

262

60–64

261

594

65–74

590

188

75–84

187

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,441	19.2%
18 and over	6,045	80.8%
65 and over	1,708	22.8%
Median age	48.1 years

Race & ethnicity

White 98.1%

Two or more races 1.1%

Hispanic or Latino 0.6%

American Indian / Alaska Native 0.1%

Other race 0.1%

Group	Count	%
White	7,388	98.1%
Two or more races	86	1.1%
Hispanic or Latino	48	0.6%
American Indian / Alaska Native	8	0.1%
Other race	4	0.1%

Household income

Under $10k 4.9%

$10k–$15k 3.4%

$15k–$25k 7.7%

$25k–$35k 6.8%

$35k–$50k 13.9%

$50k–$75k 16.9%

$75k–$100k 20.9%

$100k–$150k 13.3%

$150k–$200k 7.8%

$200k+ 4.5%

Range	% of households
Under $10k	4.9%
$10k–$15k	3.4%
$15k–$25k	7.7%
$25k–$35k	6.8%
$35k–$50k	13.9%
$50k–$75k	16.9%
$75k–$100k	20.9%
$100k–$150k	13.3%
$150k–$200k	7.8%
$200k+	4.5%
Median income	$70,969

Housing

Home values

Under $50k 8.0%

$50k–$100k 8.5%

$100k–$150k 26.3%

$150k–$200k 17.7%

$200k–$300k 24.2%

$300k–$500k 10.8%

$500k–$1M 4.2%

$1M+ 0.4%

Housing overview

Metric	Value
Median home value	$165,000
Median rent / month	$899
Owner occupied	86.2%
Renter occupied	13.8%
Vacant	10.9%
Single-family detached	81.5%
Large apartment buildings	1.0%
Mobile homes	4.1%
Median rooms	6.0
Avg household size (owned)	2.32

Year built

Era	%
2020 or later	0.3%
2010–2019	0.7%
2000–2009	7.0%
1990–1999	12.4%
1980–1989	8.6%
1970–1979	12.7%
1960–1969	5.9%
1950–1959	11.8%
1940–1949	7.7%
1939 or earlier	32.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	7.9%
2 bedrooms	20.4%
3 bedrooms	49.0%
4 bedrooms	17.1%
5+ bedrooms	4.9%

Vehicles per household

Vehicles	% of households
No vehicle	2.8%
1 vehicle	29.6%
2 vehicles	45.2%
3 or more	22.4%

Heating fuel

Fuel type	%
Utility gas	81.3%
Electricity	6.4%
Propane / LP gas	7.4%
Fuel oil	0.5%
Wood	3.0%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	1,692	51.5%
Cohabiting couple	144	4.4%
Male householder, no spouse	752	22.9%
Female householder, no spouse	699	21.3%
Households with children under 18	798	24.3%
Households with seniors (65+)	1,293	39.3%
Average household size	2.28

Marital status

Status	Male	Female
Never married	27.0%	23.2%
Married	53.3%	54.3%
Separated	0.4%	0.9%
Widowed	2.1%	10.7%
Divorced	17.3%	10.9%

Education

Less than 9th grade 1.7%

Some HS, no diploma 4.6%

HS graduate 42.6%

Some college, no degree 23.6%

Associate's degree 9.8%

Bachelor's degree 10.1%

Graduate / professional 7.5%

Metric	%
HS diploma or higher	93.6%
Bachelor's or higher	17.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	49	3.2%
Kindergarten	42	2.8%
Elementary school	610	40.0%
High school	548	35.9%
College / grad school	276	18.1%

Employment

Industry of employment

Manufacturing 25.4%

Education & healthcare 13.7%

Retail trade 9.9%

Construction 9.2%

Professional & management 9.1%

Transportation & utilities 7.2%

Other services 6.9%

Arts, food & hospitality 5.6%

Finance & real estate 3.6%

Public administration 3.6%

Information 3.3%

Wholesale trade 1.9%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	23.9%
Service	13.6%
Sales & office	22.6%
Natural resources & construction	16.2%
Production & transportation	23.8%

Employment type

Type	%
Private sector	81.8%
Government	11.5%
Self-employed	6.4%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	75.6%
Carpool	13.5%
Public transit	0.0%
Walk	3.7%
Other means	0.5%
Avg commute (minutes)	32.7

Poverty

All people 9.3%

Under 18 years 12.1%

18 and over 8.6%

Married-couple families 3.8%

Female-led households 25.6%

Income support

Source	% of households
Social Security	40.8%
Retirement income	31.4%
Supplemental Security	3.8%
Cash public assistance	2.0%
Food stamps / SNAP	11.1%

Health indicators

Condition	%
High blood pressure	33.6%
High cholesterol	34.8%
Heart disease	6.9%
Stroke	3.2%
Asthma	11.1%
Arthritis	30.6%
Kidney disease	2.9%
Pulmonary disease	8.2%
Cancer	6.9%

Behavior / access	%
Binge drinking	19.9%
No physical activity	20.9%
Less than 7 hrs sleep	32.7%
Fair or poor health	14.5%
Poor mental health	16.6%
Poor physical health	11.3%
No health insurance	9.3%
Visited doctor (checkup)	73.6%
Visited dentist	70.4%
Cholesterol screening	91.0%
Teeth loss	12.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	655	10.9%

Disability	%
Any disability	18.8%
Under 18	5.2%
18–64 years	15.6%
65 and over	38.4%

Health insurance coverage

Type	%
Private insurance	74.0%
Public insurance	43.9%
Uninsured under 19	3.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,120	95.1%
Spanish	4	0.1%
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)	7,418	99.1%
Born in same state	7,381	98.6%
Born in different state	6,568	87.7%
Foreign born	37	0.5%
Naturalized citizen	68	0.9%
Not a US citizen	31	45.6%

Ancestry

Ancestry	Count	%
Italian	1,162	15.5%
French	611	8.2%
Arab	347	4.6%
Irish	140	1.9%

Ancestry	Count	%
German	132	1.8%
English	81	1.1%
Norwegian	13	0.2%
Dutch	8	0.1%

Technology access

Metric	% of households
Computer access	43.9%
Internet access	92.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Marine City, MI?

Marine City, MI has one ZIP code: 48039.

What is the main ZIP code for Marine City, MI?

The primary ZIP code for Marine City, MI is 48039. The city uses area code 810 for phone service.

What county is Marine City, MI in?

Marine City is located in Saint Clair County, Michigan.

How many ZIP codes are in Marine City, MI?

Marine City, MI has 1 ZIP code.

What is the ZIP code for downtown Marine City along the Saint Clair River waterfront?

Downtown Marine City, located along the scenic Saint Clair River waterfront, is served by ZIP code 48039.

What ZIP code should I use for mailing to businesses in Marine City's historic downtown district?

All mailing addresses in Marine City's historic downtown district use ZIP code 48039, which covers the entire city.