Firefighters say the home, located on the 54400 block of Village View Drive, was fully engulfed in flames around 2:28 a.m.
According to authorities, the ranger went into the burning home, woke up his neighbor, and pulled him out of the house, saving his life.
A total of 25 personnel, including Cal Fire crews responded to the blaze. Firefighters say they lost water pressure at one point, but were able to contain the fire before it could spread.
No injuries were reported.