This is a private reference, not a records office. We cannot retrieve, certify, confirm, amend, or remove a record. Requests about an address or person belong with the office that keeps the record. For an emergency call 911; suspected stalking or harassment should be reported to local law enforcement.
Looking for a Specific Record?
For the most common Rancho Cucamonga research questions, use the matching route:
- Parcels and named streets: the Rancho Cucamonga street directory
- Older households and directory volumes: the Rancho Cucamonga city directory collections
- One person and identity checks: the Rancho Cucamonga resident lookup
- Records held by the offices: the Rancho Cucamonga resident records offices section
- A record not posted online: ask the named custodian under the California Public Records Act, Government Code §§7920.000–7931.000
San Bernardino Superior Court, Rancho Cucamonga District
8303 Haven Avenue
Rancho Cucamonga, CA
Public counter: Monday–Friday, 8 a.m.–4 p.m.
Public telephone: 8 a.m.–3 p.m.
Criminal division (909) 350-9764
Rancho Cucamonga City Clerk Services
Municipal records, document center, and CPRA routing
records@cityofrc.us
(909) 774-2023
For county recorded instruments, the San Bernardino County Assessor-Recorder-County Clerk lists the Hall of Records at 222 W. Hospitality Lane, First Floor, San Bernardino, CA 92415-0022, with (909) 387-8306. Appointments are strongly encouraged; confirm current hours and fees before travel. The Rancho Cucamonga Public Library reference desk can help with historical holdings at (909) 477-2720 or Library.Reference@cityofrc.us.