Crews were called to the area of Eagle Nest RV Resort on the outskirts of Porterville for reports of a fire Monday afternoon.
The fire started near Poplar Avenue and Road 265.
Officials said the flames jumped the north side of the river and burned 25 acres before crews were able to get it under control.
At one point, about 30 homes in the area were threatened, leading to evacuations in east Porterville.
Even though the fire is out, smoke may linger over the area on Tuesday.