Copperas Cove is a city located in central Texas at the southern corner of Coryell County with smaller portions in Lampasas and Bell counties. …Copperas Cove is a city located in central Texas at the southern corner of Coryell County with smaller portions in Lampasas and Bell counties. Founded in 1879 as a small ranching and farming community, today the city is the largest in Coryell County, with 36,670 at 2020. The city's economy is closely linked to nearby Fort Cavazos, making it part of the Killeen-Temple-Fort Hood Metropolitan Statistical Area.