ILLINOIS · AREA CODE GUIDE
309 area code location: Peoria and Bloomington, Illinois
- Local date and time
- Central Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 309 area code map
A printable area code 309 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
309 area code at a glance
- State
- Illinois
- Primary cities
- Peoria, Bloomington, and Moline
- Established
- Population
- Largest community: Peoria, 110,920 (2025)Not an area-code population.
- Prefixes in service
- 780 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
New code planned: No, as of 22 September 2026.
- : 861 added as an overlay on 309
Time zone
- Central Time
- Standard time UTC−06:00
- Daylight saving time UTC−05:00
Counties and cities covered
309 numbers are issued across 171 communities. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): McLean County, Fulton County, Woodford County, Knox County, Tazewell County, Henry County, Mercer County, Peoria County, McDonough County, Mason County, Rock Island County, Marshall County, Warren County, Henderson County, Stark County, Bureau County, Whiteside County, De Witt County, Hancock County, Logan County, and Schuyler County.
- Peoria
- Bloomington
- Moline
- Rock Island
- Pekin
- Galesburg
- East Moline
- Morton
- Washington
- Macomb
- Canton
- Kewanee
- Monmouth
- Geneseo
- Chillicothe
- Eureka
- Metamora
- Aledo
- Le Roy
- Germantown Hills
- Heyworth
- Abingdon
- Knoxville
- Havana
- El Paso
146 more communities
- Bushnell
- Galva
- Farmington
- Henry
- Tremont
- Lexington
- Elmwood
- Cambridge
- Lewistown
- Roanoke
- Minonk
- Mackinaw
- Lacon
- Farmer City
- Hampton
- Hudson
- Princeville
- Orion
- Port Byron
- Dunlap
- Delavan
- Erie
- Manito
- North Pekin
- Gridley
- Wyoming
- Hanna City
- Downs
- Toulon
- Cuba
- Colchester
- Oquawka
- Danvers
- Washburn
- Colfax
- South Pekin
- Goodfield
- Atkinson
- Astoria
- Annawan
- Roseville
- Glasford
- Albany
- Viola
- Hopedale
- Brimfield
- Stronghurst
- Alexis
- McLean
- Woodhull
- Wataga
- Sherrard
- Matherville
- Oneida
- Avon
- Bradford
- Cordova
- Alpha
- Kirkwood
- Deer Creek
- Saybrook
- Yates City
- Green Valley
- New Boston
- Carlock
- Stanford
- Vermont
- Williamsfield
- Keithsburg
- Blandinsville
- Andover
- Congerville
- Reynolds
- Spring Bay
- Buda
- San Jose
- Altona
- Towanda
- Ipava
- Plymouth
- Hillsdale
- Fairview
- Benson
- Neponset
- Prairie City
- Industry
- Varna
- Joy
- Sparland
- Good Hope
- London Mills
- Secor
- Bellflower
- Table Grove
- Elmira
- Easton
- Biggsville
- Arrowsmith
- Little York
- Bath
- Kilbourne
- Victoria
- Forest City
- Maquon
- Seaton
- Bardolph
- Rio
- Mineral
- Cropsey
- Smithfield
- Ellsworth
- North Henderson
- La Fayette
- Cooksville
- Littleton
- Bishop Hill
- La Rose
- Raritan
- Marietta
- Ellisville
- Topeka
- Gulfport
- Adair
- Cameron
- Camp Grove
- Castleton
- Edelstein
- Edgington
- Eliza
- Fiatt
- Gilson
- Green River
- Groveland
- Illinois City
- Low Point
- Minier Armington
- Mossville
- New Windsor
- Osco
- Preemption
- Smithshire
- Summum
- Sunnyland
- Swan Creek
- Talbott
- Trivoli
Notable places in 309
| Place | Where | What it is |
|---|---|---|
| Illinois State University | 4.4 km from Bloomington | University, 22,892 12-month enrollment (2023–24) |
| Bradley University | 6.0 km from Peoria | University, 5,603 12-month enrollment (2023–24) |
| Peoria International Airport | 8.3 km from North Pekin | Commercial airport, 343,114 enplanements (2024) |
| Western Illinois University | 0.4 km from Macomb | University, 8,213 12-month enrollment (2023–24) |
| Quad Cities International Airport | 3.9 km from Moline | Commercial airport, 326,888 enplanements (2024) |
| Central Illinois Regional Airport | 4.6 km from Bloomington | Commercial airport, 161,971 enplanements (2024) |
| Fort Armstrong | 5.5 km from Rock Island | Fortification |
| Peoria Air National Guard Base | 8.0 km from North Pekin | Military base |
| Peoria Zoo | 5.4 km from Peoria | Zoo |
| Wharton Field House | 1.8 km from Moline | Arena |
Also serving this area
Questions about 309
Where is the 309 area code?
309 is in Illinois. Its numbers are issued in Peoria, Bloomington, Moline, and 168 other communities.
What time zone is area code 309 in?
309 is in Central Time. Daylight saving time is observed.
Does 309 have an overlay?
Yes. 861 was added as an overlay on 309 on 24 February 2023.
What cities are in the 309 area code?
Peoria, Bloomington, Moline, Rock Island, and Pekin, and 166 other communities.
What state is area code 309 in?
Area code 309 is in Illinois.
What counties are covered by area code 309?
Area code 309 covers communities in McLean County, Fulton County, Woodford County, Knox County, Tazewell County, Henry County, Mercer County, Peoria County, McDonough County, Mason County, Rock Island County, Marshall County, Warren County, Henderson County, Stark County, Bureau County, Whiteside County, De Witt County, Hancock County, Logan County, and Schuyler County.
Is 309 a toll-free area code?
No. 309 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 309, answered by an AI agent
A local number for Peoria, Bloomington, and Moline, Illinois, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.