Where Is The 309 Area Code Located? City Guide | State

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Where Is Area Code 309?

Updated: November 20th 2025

Major Cities In Area Code 309

Peoria

There is not anything that is particularly special about the region that is widely recognized as Peoria, Illinois. Consistently in the shadow of its much larger neighbor, Chicago, Peoria residents strive to gain recognition as a great place to live and vacation. The 309 area code is used for Peoria as well as approximately 189 other small cities in Illinois. Area code 309 was implemented in 1966 and has a long history in Illinois. Population growth is not extreme in the Peoria area code, which makes it unlikely that an overlay or split will be necessary anytime in the near future.

People traveling to Peoria will be met with genuine hospitality and tons of open space. The 309 area code is beautiful and has several parks and nature centers. Residents in area code 309 enjoy being outdoors when the weather allows, and frequently visit the Wildlife Prairie State Park as well as the Forest Park Nature Center. Hiking is a popular activity but the terrain makes it grueling. As a result, it is a good idea to explore Peoria’s great outdoors with a local unless you are an experienced outdoorsman.

Illinois Area Codes By Number

217 Area Code 224 Area Code 312 Area Code 331 Area Code 447 Area Code 464 Area Code 618 Area Code 630 Area Code 708 Area Code 730 Area Code 773 Area Code 779 Area Code 815 Area Code 847 Area Code 872 Area Code
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