The stabbing took place at the Angel Peak RV Park.
Steven Guiterez was stabbed nine times at 7:30 a.m., and the suspect fled the scene, Beth Utley, a sheriff's office spokeswoman, said.
The victim survived but additional information about the person's condition was not available.
Utley said detectives have arrested a 16-year-old boy. The investigation is ongoing and additional information, including the suspect's identity, has not yet been released.
The park is at 6181 U.S. 64 in Bloomfield.