| Country United States County Clinton Area code(s) 618 Elevation 142 m | State Illinois Time zone Central (CST) (UTC-6) GNIS feature ID 404717 Local time Thursday 8:06 PM | |
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| Weather 2°C, Wind NW at 14 km/h, 84% Humidity | ||
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.
Map of Boulder, IL 62231, USA
References
Boulder, Illinois Wikipedia(Text) CC BY-SA