St. Augustine or Saint Augustine It is part of the Galesburg Micropolitan Statistical Area.
Geography
St. Augustine is located in the southwest corner of Knox County. The southern boundary of the village follows the Fulton county line. Illinois Route 41 passes through the center of the village, leading north to Abingdon and to Galesburg, the county seat. To the south IL 41 leads to Bushnell. Illinois Route 116 follows the northern border of the village, leading east to London Mills and west to Roseville.
According to the 2021 census gazetteer files, St. Augustine has a total area of , all land.
Demographics
As of the 2020 census