Zelin Mrzlovodički is located in the municipality Lokve, in Primorje-Gorski Kotar County at an elevation of 825 meters above sea level and it covers the area of 4.13 km² (1.59 sq. miles). According to the 2011 census report, there were 16 inhabitants. It is entirely populated by Croats. Nearby places: Zelin Crnoluški, Mrzla Vodica, Vela Voda, Lazac Lokvarski, Leska, Bela Vodica, Crni Lug, Homer, Malo Selo and Lokve.