What is covered
A city name does not establish utility, school district, police-contract or parcel jurisdiction. San Francisco is one consolidated city-county entity.
Source & saved evidence
Diamond Bar identity and county; PDF page 23
City of Diamond Bar (County of Los Angeles)
Agent source review: October 13, 2026 · Snapshot f3717bec86950c07
Source-reported contacts
Telephone
Source & saved evidence
City of Diamond Bar — Telephone; PDF page 23
(909) 839-7010
Agent source review: October 13, 2026 · Snapshot f3717bec86950c07
Address
21810 Copley Dr.
View address on map (opens in a new tab)
Source & saved evidence
City of Diamond Bar — Address; PDF page 23
21810 Copley Dr.
Agent source review: October 13, 2026 · Snapshot f3717bec86950c07
Hours as listed
Mon-Thu 7:30 am-5:30 pm Fri 7:30 am-4:30 pm
Source & saved evidence
City of Diamond Bar — Office Hours; PDF page 23
Mon-Thu 7:30 am-5:30 pm Fri 7:30 am-4:30 pm
Agent source review: October 13, 2026 · Snapshot f3717bec86950c07
Reviewed office guides
No detailed office guide has been linked to this entry yet. Fees, forms, eligibility and current availability remain unreviewed.