Hammond, Louisiana

4 ZIP codes · Central time

ZIP codes (largest first)

70403 · 30,17370401 · 21,22170402 · 1,85070404 (PO box)
Population21,539
StateLouisiana
CountyTangipahoa Parish
Time zoneCentral
Land area14.25 sq mi

Area codes in this area

504985

These are the area codes that most often serve Hammond (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 Hammond

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