Zip Area Code

McLean County, Illinois

McLean County, Illinois, has 26 towns and 31 ZIP codes, in area code 309, with 861 as an overlay.

Towns in McLean County, A to Z

TownZIP codesArea codes
Anchor61720309, 861
Arrowsmith61722309, 861
Bellflower61724309, 861
Bloomington61701, 61702, 61704, 61705, 61709, 61710 and more309, 861
Chenoa61726309, 861
Colfax61728309, 861
Cooksville61730309, 861
Cropsey61731309, 861
Danvers61732309, 861
Downs61736309, 861
Ellsworth61737309, 861
Gridley61744309, 861
Heyworth61745309, 861
Hudson61748309, 861
Kappanearest61748309, 861
Le Roy61752309, 861
Lexington61753309, 861
Mc Lean61754309, 861
McLeannearest61754309, 861
Merna61758309, 861
Normal61761, 61790309, 861
Saybrook61770309, 861
Shirley61772309, 861
Stanford61774309, 861
Towanda61776309, 861
Twin Grovenearest61705309, 861

ZIP codes in McLean County

Area codes in McLean County

  • Area code 309

    In service since 1957. Shares its area with 861. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 861

    In service since February 24, 2023. Shares its area with 309. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.