Illinois
(309) Area Code 309 — Peoria, Illinois
309 Area Code – Peoria, Illinois: Location, Time Zone & History
Build trust, look local, and grow your business with a phone number in area code 309. Instant activation, flexible forwarding, and clear pricing.
Map of Area Code 309
Available Phone Numbers
Choose from popular and easy-to-remember local numbers. Instant purchase and activation.
History & Cultural Notes
Formed sometime after September 1956, when the northern part of the 217 numbering plan area around Peoria and Bloomington-Normal was combined with a portion of the 815 territory, area code 309 (later joined by the 861 overlay in 2023) covers a stretch of west-central Illinois whose economy rests on manufacturing and finance rather than a single dominant sector.
Peoria has long been associated with Caterpillar Inc., whose headquarters there gave rise to the American phrase "Will it play in Peoria?"—a reference to the city's role as a bellwether test market for new consumer products. Bloomington-Normal, meanwhile, is home to State Farm Insurance and Illinois State University, giving the region a second economic anchor built on financial services and higher education.
- Heavy equipment manufacturing
- Insurance
- Agriculture
- Higher education and research
- Health care
Beyond Peoria and Bloomington-Normal, the numbering plan area also reaches Moline, Rock Island, Galesburg, and Macomb, tying together a set of Illinois River valley communities whose economies range from agricultural processing to advanced manufacturing and health services.