Some of the cities, towns, and places in Macoupin County are Anderson, Atwater, Barr, Benld, Bird, Brighton, Brushy Mound, Bunker Hill, Cahokia, Carlinville, Chesterfield, Dorchester, Eagarville, East Gillespie, Gillespie, Girard, Hagaman, Hettick, Hillyard, Honey Point, Lake Ka-ho, McVey, Medora, Modesto, Mount Clare, Mount Olive, Nilwood, North Otter, North Palmyra, Palmyra, Piasa, Plainview, Polk, Reader, Royal Lakes, Sawyerville, Scottville, Shaws Point, Shipman, South Otter, South Palmyra, Standard City, Staunton, Virden, Western Mound, White City, Wilsonville, Womac, Woodburn
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.The primary industry is agriculture, consisting of crops of corn (maize), soybeans, and some wheat.