Boulder, Illinois

Boulder, Illinois
Boulder, Illinois is located in Illinois
Boulder, Illinois
Boulder, Illinois
Boulder, Illinois is located in the United States
Boulder, Illinois
Boulder, Illinois
Coordinates: 38°41′48″N 89°13′32″W / 38.69667°N 89.22556°W / 38.69667; -89.22556
CountryUnited States
StateIllinois
CountyClinton
Elevation466 ft (142 m)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
Area code618
GNIS feature ID404717[1]

Boulder is an unincorporated community in Clinton County, Illinois, United States. Boulder is located on the eastern shore of Carlyle Lake; a railroad line crosses the lake from Boulder to Keyesport.

References