Find the last 4 digits (ZIP+4) for an address in 48028

ZIP 48028, Harsens Island, MI is filled in. Just type the street address.

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ZIP Code 48028 – Harsens Island, MI

Harsens Island, Michigan · St. Clair County · Eastern time

ZIP code48028
CityHarsens Island
StateMichigan
CountySt. Clair County
Population1,272
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area17.77 sq mi
Center (lat, long)42.5802, -82.6166

Area codes in this area

313679

These are the area codes that most often serve ZIP 48028 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

48001 Algonac · 4.4 mi48039 Marine City · 8.6 mi48023 Fair Haven · 8.8 mi48045 Harrison Township · 10.2 mi48047 New Baltimore · 10.3 mi48064 Casco · 13 mi48051 New Baltimore · 13.1 mi48046 Mount Clemens · 13.3 mi

About ZIP 48028

ZIP code 48028 is assigned to Harsens Island, Michigan. It lies in St. Clair County. Its Census area covers about 17.77 square miles of land. The closest neighboring ZIP is 48001 (Algonac), about 4.4 miles away.

Every address in 48028 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources