Sponsored Topics. Cazenovia is a village in Richland and Sauk Counties in the U.S. state of Wisconsin. The population was 326 at the 2000 census. Cazenovia is located at 43°31′24″N 90°11′49″W / 43.52333°N 90.19694°W / 43.52333; -90.19694 (43.523400, -90.196894).