Kupa is a village located on the right bank of the eponymous river, near Delnice, Primorje-Gorski Kotar County, Croatia; population 8 (2011).
On 7 November 2024, the villagers of Donji Loà ¾ac, RadoÃÂaj Brodski, Gusti Laz, Grbajel, Golik, Belo, ÃÂedanj and Kupa were informed that their tap water was not bacteriologically safe to drink.