 The gmina covers an area of , and as of 2006 its total population is 7,124.Gmina Kotlin contains the villages and settlements of Kotlin, Kurcew, Magnuszewice, Orpiszewek, Parzew, Racendów, Sławoszew, Twardów, Wilcza, Wola Książęca, Wysogotówek and Wyszki.Gmina Kotlin is bordered by the gminas of Czermin, Dobrzyca, Jarocin, Pleszew and Żerków.