Flanagan, IL 61740 Post Office Location: 203 S Main Street; Flanagan, IL Year Post Office built: Town(s) Served: Anchor Acceptable City Names: Flanagan Not Acceptable City Names:Nebraska Township Sectional Service Facility: Bloomington County(ies): Livingston, Woodford Info on Flanagan: The Village of Flanagan is a small village west of Pontiac. This is located along Illinois 116. |