Creve Coeur, Illinois Area Code

Creve Coeur, IL is officially utilizing two area codes which are area codes 309 and 861.

In addition to Creve Coeur, IL area code information read more about area codes 309 and 861 details and Illinois area codes.

Creve Coeur, IL is located in Tazewell County and observes the Central Time Zone.
View our Times by Area Code tool.