Niantic is a village in Macon County, Illinois, United States. Its population was 612 at the 2020 census, down from 707 in 2010. It is included in the Decatur, Illinois Metropolitan Statistical Area.
Welcome sign
Niantic Village Hall and water tower
Niantic water tower
Niantic Fire Station
Macon County is a county located in the U.S. state of Illinois. According to the 2020 United States Census, it had a population of 103,998. Its county seat and most populous city is Decatur.
Wabash Railroad Station and Railway Express Agency in Decatur
Plaque honoring 2,486 Macon County soldiers that fought in the War of the Rebellion, 1861-65