Podumci is located in the municipality Unešić, in Šibenik-Knin County at an elevation of 324 meters above sea level and it covers the area of 14.25 km² (5.50 sq. miles). According to the 2011 census report, there were 91 inhabitants. It is predominantly populated by Croats (99%), but also. Nearby places: Ostrogašica, Ljubostinje, Mirlović Zagora, Unešić, Danilo Kraljice, Donje Planjane, Koprno, Gornje Planjane, Sedramić and Cera.