New Boston is a city in Mercer County, Illinois, United States on the Mississippi River. The population was 613 at the 2020 census, down from 683 in 2010.
New Boston along IL 17 in April 2017
Mercer County is a county in Illinois. According to the 2020 census, it had a population of 15,699. Its county seat is Aledo.
Mercer County Courthouse