Murray is a home rule-class city in Calloway County, Kentucky, United States. It is the seat of Calloway County and the 19th-largest city in K…Murray is a home rule-class city in Calloway County, Kentucky, United States. It is the seat of Calloway County and the 19th-largest city in Kentucky. The city's population was 17,307 during the 2020 U.S. census, and its micropolitan area's population is 37,191. Murray is a college town and is the home of Murray State University.