Marion, Illinois

1 ZIP code · Central time

ZIP codes (largest first)

62959 · 27,793
Population16,836
StateIllinois
CountyWilliamson County
Time zoneCentral
Land area14.4 sq mi

Area codes in this area

618730

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

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

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