Franktown is an unincorporated community and census-designated place (CDP) in Douglas County, Colorado, in the United States. The population was 395 at the 2010 census.
Franktown is named for Hon. J. Frank Gardner, an early resident.Franktown was the first county seat of Douglas County, serving in this role from 1861 until 1863.Pike's Peak Grange No. 163 in Franktown is listed on the National Register of Historic Places.