Ballwin, Missouri

4 ZIP codes · Central time

ZIP codes (largest first)

63021 · 55,66663011 · 35,92063022 (PO box)63024 (PO box)
Population31,279
StateMissouri
CountySt. Louis County
Time zoneCentral
Land area9.08 sq mi

Area codes in this area

636

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

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