ZIP Code 48039
standardSource:
Marine City · St. Clair County · Michigan
- Population
- 7,807
- Median income
- $82,755
- Median home value
- $181,300
- Bachelor's or higher
- 20.8%
- Land area
- 59.6 sq mi
131/sq mi
▲ 8% vs US
higher than 65% of US ZIPs
▼ 35% vs US
higher than 38% of US ZIPs
Median age 47.6
Detroit
ZIP code 48039 in Marine City, Michigan has a population of 7,807. The median household income is $82,755, which is 8% above the national average. Median home value is $181,300, 35% below the US average. 20.8% of residents hold a bachelor's degree or higher.
ZIP code 48039 is classified by USPS as a standard delivery area and covers roughly 59.6 square miles in Marine City, St. Clair County, Michigan. The area is home to 7,807 residents, producing a population density of 131 people per square mile, and falls within the Detroit time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 48039 against Michigan and the nation.
On the economic side, the median household income for ZIP 48039 sits at $82,755 (13% above the Michigan average), while per-capita income is $41,912. The poverty rate stands at 6.5% and the unemployment rate at 5.6%. On housing, the median home value is $181,300 (17% below the state average) with median rent at $947 per month, and 87.0% of occupied units are owner-occupied, a direct signal of whether 48039 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 20.8% of adults hold a bachelor's degree or higher, the median age is 47.6, and the average commute is 32 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Clair County, so you can benchmark 48039 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 48039
Top 5 sectors by establishment count
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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
$41,912
Per Capita Income
6.5%
Poverty Rate
5.6%
Unemployment Rate
31.8 min
Mean Commute Time
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?
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
$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 →
More ZIP Codes in St. Clair County
Related Areas
Frequently Asked Questions
What county is ZIP code 48039 in? ▼
What is the population of ZIP code 48039? ▼
What is the median household income in ZIP 48039? ▼
What is the average home value in ZIP 48039? ▼
What is the demographic makeup of ZIP 48039? ▼
How many businesses are in ZIP code 48039? ▼
What are the main industries in ZIP code 48039? ▼
How have home values changed in ZIP code 48039? ▼
What is the education level in ZIP code 48039? ▼
What is the average commute time in ZIP 48039? ▼
What percentage of residents own vs. rent in ZIP 48039? ▼
What is the poverty rate in ZIP code 48039? ▼
ZIP Code Research Guides
Official Data Resources for Marine City, MI
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.