St. Augustine, Illinois

No ZIP code carries the name of St. Augustine, Illinois, in Fulton County; the nearest ZIP codes are 61415 and 61474, in area code 309, with 861 as an overlay.

Nearest ZIP: 61415, 61474
Area codes: 309, 861
Counties: Fulton County, Knox County
State: Illinois
Time zone: Central Time
Coordinates: 40.7213, -90.4069

Nearest ZIP codes to St. Augustine

These are the ZIP codes nearest to St. Augustine, each listed with the post office it is named after.

ZIP code	Post office	County	Area codes
61415	Avon	Fulton County	309, 861
61474	Saint Augustine	Knox County	309, 861

Area codes for St. Augustine

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.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

St. Augustine is in the Central Time zone.

Towns near St. Augustine

Saint Augustine2.4 km (1.5 mi)
Avon8.1 km (5.0 mi)
Abingdon9 km (5.6 mi)
Berwick10.6 km (6.6 mi)
Prairie12.2 km (7.6 mi)
London Mills12.6 km (7.8 mi)
Prairie City12.8 km (8.0 mi)
Ellisville16.4 km (10 mi)

Local numbers in area code 309

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