[2] The county was founded in November 1822 and named for Colonel Richard Callaway, one of the founders of Boonesborough.

[3] Calloway County comprises the Murray, KY Micropolitan Statistical Area.

A fire at the courthouse in 1906 caused the almost complete destruction of the county records.

29.70% of all households were made up of individuals, and 11.40% had someone living alone who was 65 years of age or older.

The relatively large 18-to-24 population is mostly due to the presence of Murray State University.