St. Clair County, Michigan
21 ZIP codes · 721.5 sq mi of land · FIPS 26147
| Population | 160,221 |
|---|---|
| State | Michigan |
| FIPS code | 26147 |
| Time zone | Eastern |
| Land area | 721.5 sq mi |
| Center (lat, long) | 42.9288, -82.6689 |
Area codes in this area
These are the area codes that most often serve St. Clair County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Port Huron · 28,620AlgonacAllentonAvocaCapacEmmettFair HavenGoodellsHarsens IslandJeddoMarine CityMarysvilleMemphisNorth StreetEast ChinaFort GratiotColumbusCascoSmiths CreekSaint ClairYale
ZIP codes in St. Clair County
48001 Algonac48002 Allenton48006 Avoca48014 Capac48022 Emmett48023 Fair Haven48027 Goodells48028 Harsens Island48032 Jeddo48039 Marine City48040 Marysville48041 Memphis48049 North Street48054 East China48059 Fort Gratiot48060 Port Huron48063 Columbus48064 Casco48074 Smiths Creek48079 Saint Clair48097 Yale
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.