Area Code 309 — Illinois

Q: What time zone is area code 309?

Area code 309 is in the Central Time zone (Central Time).

Active General Purpose Code Overlay United States

Area code 309 is located in Illinois and operates on Central Time . The largest city served is Peoria .

Coverage Area

Area code 309 — Illinois

Area Code Details

Area Code: 309
State / Province: Illinois (IL)
Country: United States
Time Zone: Central Time Central Time
Local Time Now: —
Status: Active
Code Type: General Purpose Code
In Service Since: January 1, 1957
Assigned: January 1, 1957
Population Served: ~313,039 est.
Overlay Complex: 309/861

Cities Served

Largest City Peoria

Peoria Bloomington Rock Island Pekin Macomb Kewanee Monmouth Havana Farmington Lexington Washburn Dunlap South Pekin Cameron Deer Creek Low Point Castleton Summum Colfax Mossville

History & Relationships

New codes split from 309

861 Illinois

Overlay complex — shares geography with

861 Illinois

Rate Centers & Exchanges

26 rate centers identified within area code 309

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Other Area Codes in Illinois

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Nearby Area Codes

Frequently Asked Questions About Area Code 309

What state is area code 309?

Area code 309 is located in Illinois, United States.

Where is area code 309 from?

Area code 309 originates from Illinois. It operates in the Central Time zone.

What time zone is area code 309?

Area code 309 falls within the Central Time zone (Central Time).

What cities are in area code 309?

Area code 309 serves cities including Peoria, Bloomington, Rock Island, Pekin, Macomb, Kewanee, Monmouth, Havana, and more.

Is a call from area code 309 a scam?

Area code 309 is a legitimate general purpose code area code serving Illinois. Like any area code, individual numbers using 309 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.