US ZIP Code
48028

Harsens Island, MI

St. Clair County  ·  Michigan

● Active
👥 1,058 Population ↑ 6% since 2019
💰 $106,765 Median HH Income
▲ 40% above avg ↑ 100% since 2019
🎂 63.4 Median Age ↓ 4% since 2019
🏠 $339,100 Median Home Value
▲ 22% above avg ↑ 17% since 2019
🎓 46.4% College Grads
▲ 20% above avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code48028
CityHarsens Island
StateMichigan (MI)
CountySt. Clair County
Area Code810
Elevation576 ft
Latitude42.580209
Longitude-82.61662
TimezoneDetroit (DST)
FIPS26147
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 56.3% (596) Female 43.7% (462) ♀

Race & Ethnicity

White: 99.3%Other: 0.7%Race
White99.3%
Other0.7%

Age Breakdown

Under 5
2%
5–17
1%
18–24
6%
25–44
7%
45–64
37%
65+
19%

Key Indicators

Median Age63.4 yrs ↓ 4% since 2019
Avg Household Size1.88
Below Poverty4.8% ▼ 52% below avg
College Grads46.4% ▲ 20% above avg
Unemployment0.0% ▼ 100% below avg
HS Graduate215 (22.4%)
Some College45 (4.7%)
Associates254 (26.5%)
Bachelors136 (14.2%)
Graduate Degree309 (32.2%)

Education

HS Grad: 22.4%Some College: 4.7%Associates: 26.5%Bachelors: 14.2%Graduate: 32.2%Edu
HS Grad22.4%
Some College4.7%
Associates26.5%
Bachelors14.2%
Graduate32.2%
Housing & Income

Housing Tenure

Owner: 96.6%Renter: 3.4%Tenure
Owner96.6%
Renter3.4%

Home Value Distribution

$100k–150k
7%
$150k–200k
11%
$200k–300k
25%
$300k–500k
32%
Over $500k
24%

Financials

Median HH Income$106,765 ▲ 40% above avg ↑ 100% since 2019
Median Home Value$339,100 ▲ 22% above avg ↑ 17% since 2019
Home/Income Ratio3.2x (nat avg ~3.5x)
Total Units1,538
Vacant Units976
Avg HH Size1.88

Income Distribution

Under $25k
6%
$25k–50k
11%
$50k–75k
8%
$75k–100k
17%
$100k–150k
22%
$150k–200k
16%
Over $200k
20%
Employment & Commute

How People Get to Work

Drove Alone
80%
Public Transit
6%
Walked
2%
Work From Home
13%

Commute Time

Under 15 min
17%
15–30 min
10%
30–45 min
19%
Over 45 min
53%
Housing Stock

Year Built

Before 1940
7%
1940s–1950s
10%
1960s–1970s
9%
1980s–1990s
15%
2000+
60%

Summary

Total Units1,538
Vacant976
Owner Occupied96.6%
Renter Occupied3.4%
Avg HH Size1.88
Frequently Asked Questions
ZIP code 48028 is in Harsens Island, MI, in St. Clair County.
ZIP code 48028 is located in Michigan (MI).
ZIP code 48028 is in St. Clair County, MI.
ZIP 48028 observes the Detroit timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 48028 is 1,058 people (ACS 2023).
The median household income in ZIP code 48028 is $106,765 (ACS 2023).
The median home value in ZIP 48028 is $339,100 (ACS 2023).
About ZIP Code 48028

ZIP code 48028 is located in Harsens Island, Michigan, within St. Clair County. With a population of 1,058, this is a sparsely populated ZIP code with an older community — the median age is 63.4 years. Economically, 48028 is a upper-middle-income ZIP code: the median household income of $106,765 is above the national average.

Real estate in ZIP code 48028 represents a mid-range housing market. The median home value of $339,100 is above the national average. Homeownership is strong here — 96.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 17% since 2019.

The population of 48028 is primarily White (99.34%). Residents are well-educated — 46.4% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 4.8%. Household income has grown by 100% since 2019.

About 12% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 76%.

Overall, ZIP code 48028 in Harsens Island, MI is characterized as upper-middle-income, well-educated, an older community, and predominantly owner-occupied. With 1,058 residents, a median household income of $106,765, and a median home value of $339,100, it offers a clear picture of life in this part of Michigan.