Knox County, Illinois

Knox County, Illinois, has 20 towns and 17 ZIP codes, in area code 309, with 861 as an overlay.

Towns in Knox County, A to Z

Town	ZIP codes	Area codes
Abingdon	61410	309, 861
Altona	61414	309, 861
Dahinda	61428	309, 861
East Galesburg	61430	309, 861
Galesburg	61401, 61402	309, 861
Gilson	61436	309, 861
Henderson	61439	309, 861
Knoxville	61448	309, 861
Maquon	61458	309, 861
Nekoma	nearest61414, 61419, 61490	309, 861
Oak Run	nearest61428	309, 861
Oneida	61467	309, 861
Rio	61472	309, 861
Saint Augustine	61474	309, 861
St. Augustine	nearest61415, 61474	309, 861
Victoria	61485	309, 861
Wataga	61488	309, 861
Williamsfield	61489	309, 861
Yates	nearest61529, 61572	309, 861
Yates City	61572	309, 861

ZIP codes in Knox County

61401Galesburg309, 861
61402Galesburg309, 861
61410Abingdon309, 861
61414Altona309, 861
61428Dahinda309, 861
61430East Galesburg309, 861
61436Gilson309, 861
61439Henderson309, 861
61448Knoxville309, 861
61458Maquon309, 861
61467Oneida309, 861
61472Rio309, 861
61474Saint Augustine309, 861
61485Victoria309, 861
61488Wataga309, 861
61489Williamsfield309, 861
61572Yates City309, 861

Area codes in Knox 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.

Local numbers in area code 309

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