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 High-density area
- $82,755
- Median income Near-median income area
- $181,300
- Median home value Near-median home value
- 20.8%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 48039 (Marine City, MI) rose +1.9% from 2023 to 2024. The all-transactions index moved from 159.1 in 2023 to 162.1 in 2024 (2000 = 100).
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 average Michigan ZIP), while per-capita income is $41,912. The poverty rate is 6.5%, with unemployment at 5.6%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $181,300 (17% below the average Michigan ZIP), and median rent is $947; owner occupancy is 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. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in St. Clair County, so 48039 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
27 establishments
- Manufacturing
Manufacturing
23 establishments
- Retail trade
Retail trade
23 establishments
- Accommodation and food services
Accommodation and food services
17 establishments
- Health care and social assistance
Health care and social assistance
16 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, 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
Who lives in ZIP 48039?
47.6
Median Age
50.8%
Male
49.2%
Female
1.3%
Foreign-Born
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 ZIP avg
$41,912
Per Capita Income
6.5%
Poverty Rate
5.6%
Unemployment Rate
31.8 min
Mean Commute Time
How ZIP 48039 ranks among Michigan ZIPs
Marine City, MI household income vs. every Michigan ZIP code
Median household income among 962 reporting Michigan ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$82,755 Top 27% higher than 73% of 962 Michigan ZIPs
Each bar is a $20K-wide band; taller bars hold more Michigan 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
3,656housing units
3,656
Total Housing Units
3,266
Occupied Units
390
Vacant Units
2.28
Avg Household Size
Occupancy Type
$181,300
Median Home Value
-17% vs state ZIP avg
$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.
- 48001
Algonac (48001)
11,986 residents
- 48039
Marine City (48039)
7,807 residents
- 48054
East China (48054)
7,339 residents
- 48023
Fair Haven (48023)
5,178 residents
- 48064 4,107
Casco (48064)
4,107 residents
- 48028 1,190
Harsens Island (48028)
1,190 residents
What this shows Among its immediate neighbors, ZIP 48039 ranks #2 by population - useful context the national average alone can't give.
ZIP 48039 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 48028
Harsens Island (48028)
$109,730 median income
- 48064
Casco (48064)
$87,538 median income
- 48054
East China (48054)
$83,241 median income
- 48039
Marine City (48039)
$82,755 median income
- 48023
Fair Haven (48023)
$70,469 median income
- 48001
Algonac (48001)
$69,160 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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 48039, both outside MI so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (7,807 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in St. Clair County
Related Areas
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.
Related
Take this with you
What to do with ZIP 48039's numbers, next.
- See how ZIP 48039 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Marine City, MI ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.