Dyer, Indiana

1 ZIP code · Central time

ZIP codes (largest first)

46311 · 23,321
Population16,400
StateIndiana
CountyLake County
Time zoneCentral
Land area6.16 sq mi

Area codes in this area

574

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

Find the ZIP+4 for an address in Dyer

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.