PlainZIP

Marine City, MI · standard

ZIP Code 48039

St. Clair County, Michigan - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

7,807
131/sq mi
$82,755
Median income
$181,300
Median home value
20.8%
Bachelor's or higher

The verdict

Marine City pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 35%
household income, US ZIPs
38th pct
home value, US ZIPs
131
people per sq mi
87%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 48039 against every reporting US ZIP.

ZIP code 48039 is a mid-sized community (a standard USPS delivery area) in Marine City, St. Clair County, Michigan, home to 7,807 residents across 59.6 square miles, a density of 131 people per square mile, in the Detroit time zone.

ZIP 48039 lands in the middle-income range, with a median household income of $82,755 (13% above the Michigan average), while per-capita income is $41,912. 6.5% of residents live below the poverty line, and the unemployment rate reads 5.6%. Median home value sits at $181,300 (17% below the state average), median rent at $947 a month, and owner-occupancy at 87.0%.

Educational attainment sits below the national norm: 20.8% of adults hold a bachelor's degree or higher, the median age is 47.6, and the average commute is 32 minutes. Beyond these figures, 5 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing St. Clair County, letting you compare 48039 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 48039

Top 5 sectors by establishment count in Marine City, MI

Which industries have the most business establishments in ZIP 48039.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 48039, Marine City, MI · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

7,807

Population

59.6

Area (sq mi)

131

People / sq mi

Detroit

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 48039?

47.6

Median Age

50.8%

Male

49.2%

Female

1.3%

Foreign-Born

White 95.7%
African American 0.0%
Asian 0.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.2%
Hispanic or Latino 0.9%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$82,755

Median Household Income

+13% vs state

$41,912

Per Capita Income

6.5%

Poverty Rate

5.6%

Unemployment Rate

31.8 min

Mean Commute Time

How ZIP 48039 ranks nationally

Marine City, MI household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$82,755 Top 35% higher than 65% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 56.8%
Bachelor's Degree or Higher 20.8%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,656

Total Housing Units

3,266

Occupied Units

390

Vacant Units

2.28

Avg Household Size

Occupancy Type

Owner 87.0%
Renter 13.0%

$181,300

Median Home Value

-17% vs state

$947

Median Rent

1957

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+1.9%

YoY Change (2024)

162

HPI Index (2000 = 100)

+62%

Total Change Since 2000

Home values in ZIP 48039 have increased 1.9% over the past year (2024). Since 2000, this ZIP has seen +62% cumulative appreciation.

Year Annual Change HPI Index
2020 -0.2% 117
2021 +12.3% 132
2022 +8.1% 143
2023 +11.5% 159
2024 +1.9% 162

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 164 business establishments in ZIP 48039, employing approximately 1,541 people with a combined annual payroll of $76,606,000.

164

Businesses

1,541

Employees

$76.6M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Construction 27 16.5%
Manufacturing 23 14.0%
Retail trade 23 14.0%
Accommodation and food services 17 10.4%
Health care and social assistance 16 9.8%
Other services (except public administration) 12 7.3%
Professional, scientific, and technical services 11 6.7%
Administrative and support and waste management and remediation services 11 6.7%
Transportation and warehousing 5 3.0%
Finance and insurance 5 3.0%
Wholesale trade 4 2.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 48039 vs 48054 →

ZIP 48039 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 48039 ranks #2 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 48039 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 48039 ranks #4 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
48054 East China, MI 7,339 5.1 mi
48001 Algonac, MI 11,986 4.3 mi
48023 Fair Haven, MI 5,178 5.5 mi
48028 Harsens Island, MI 1,190 8.2 mi
48064 Casco, MI 4,107 7.9 mi

More ZIP Codes in St. Clair County

48060 standard
Port Huron, MI
Pop: 40,831
48059 standard
Fort Gratiot, MI
Pop: 15,123
48079 standard
Saint Clair, MI
Pop: 12,304
48001 standard
Algonac, MI
Pop: 11,986
48040 standard
Marysville, MI
Pop: 9,956
48074 standard
Smiths Creek, MI
Pop: 9,356

Related Areas

St. Clair County Marine City, MI Michigan

Frequently Asked Questions

What county is ZIP code 48039 in? ▼
ZIP code 48039 (Marine City) is located in St. Clair County, Michigan. St. Clair County contains multiple ZIP codes, see the full list at /counties/st-clair-mi.
What is the population of ZIP code 48039? ▼
ZIP code 48039 in Marine City, MI has a population of 7,807 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 48039? ▼
The median household income in ZIP 48039 is $82,755, which is 8% above the national average of $76,288.
What is the average home value in ZIP 48039? ▼
The median home value in ZIP 48039 is $181,300, which is 35% below the national average of $278,155.
What is the demographic makeup of ZIP 48039? ▼
The largest racial group in ZIP 48039 is White at 95.7%. Hispanic or Latino residents make up 0.9% of the population.
How many businesses are in ZIP code 48039? ▼
ZIP code 48039 has 164 business establishments employing approximately 1,541 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 48039? ▼
The top industries by establishment count in ZIP 48039 are: Construction (27), Manufacturing (23), Retail trade (23). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 48039? ▼
According to the FHFA House Price Index, home values in ZIP 48039 increased by 1.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 62%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 48039? ▼
In ZIP code 48039, 56.8% of residents aged 25+ have a high school diploma or higher, and 20.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 48039? ▼
The mean commute time for workers in ZIP code 48039 is 31.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 48039? ▼
In ZIP code 48039, approximately 87.0% of occupied housing units are owner-occupied and 13.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 48039? ▼
The poverty rate in ZIP code 48039 is 6.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.