- Frankfort City
- Colfax Town
- Forest Twp
- Kirklin Town
- Michagantown Town
- Mulberry Town
- Rossville Town
- HISTORIC SITES
- Charles H. and Emma Condon, House
- Christian Ridge Historic District
- Clinton County Courthouse
- Frankfort Commercial Historic District
- John Young House
Photo: Houses on East Clinton Avenue, ca. 1885 & 1910, Christian Ridge Historic District, Frankfort, IN. The Historic District was listed on the National Register of Historic Places in 2003. Photographed by User:Nyttend (own work), 2012, [cc0-by-1.0 (creativecommons.org/publicdomain/zero/1.0/deed.en], via Wikimedia Commons, accessed December, 2014.
Clinton County administrative offices are located at 125 Courthouse Square, Frankfort, IN 46041; phone: 765-659-6309.
Clinton County was established in 1930. The first meeting to elect officers was held at the house of Matthew Bunnell on May 3rd of that year. Elected officers were: William Douglas, probate judge; Samuel Maxwell, clerk; Beal Dorsey, recorder; John Pence, treasurer; Solomon Young, sheriff; I.D. Armstrong, surveyor; and John Douglas, Joseph Hill & Mordecai McKinsey, commissioners. 
- History of Clinton County, Indiana, 1886, Inter-State Publishing Company, Chicago.