Even though you may live in Rosena Ranch, you still get services from San Bernardino County, the City of Rialto and the City of Fontana.
Here's a short list of useful phone numbers
Rosena Ranch
Rosena Ranch Clubhouse: (909) 355-0225
Seabreeze Management Company: (800) 232-7517
Lyons Security Service: (714) 932-3103
Schools
Paakuma K-8 School and field reservation: (909) 355-5137
San Bernardino Unified School District: (909) 388-6100
Police
San Bernardino Sheriff - Fontana Station: (909) 356-6767
San Bernardino Sheriff - Dispatch: (909) 829-7311
Rialto Police Department: (909) 820-2501
California Highway Patrol: (909) 383-4247
California Highway Patrol - Dispatch: (909) 428-5400
Fire
Fontana Fire Department: (909) 829-4441
Rialto Fire Department: (909) 820-2501
Services
Arrowhead Regional Medical Center Behavioral Health: (909) 580-1800
San Bernardino Animal Control: (909) 384-1304
Code Enforcement: (909) 384-5205
Graffiti Hotline: (877) 442-2283