Collinsville, Illinois

1 ZIP code · Central time

ZIP codes (largest first)

62234 · 31,648
Population24,031
StateIllinois
CountyMadison County
Time zoneCentral
Land area15.41 sq mi

Area codes in this area

618730

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

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.