Gillespie is a city in Macoupin County, Illinois, United States, and part of the Metro East region of the St. Louis metropolitan area. The population was 3,168 at the 2020 census.
Downtown Gillespie
New Lake, west of Gillespie
Gillespie's city hall pavilion
Macoupin County, Illinois
Macoupin County is located in the U.S. state of Illinois. According to the 2020 census, it had a population of 44,967. The county seat is Carlinville.
Macoupin County Courthouse in Carlinville