How far is it from Placentia, CA to Diamond Bar, CA?

The distance between Placentia, CA and Diamond Bar, CA is 13 mi by road.

How long does it take to drive from Placentia, CA to Diamond Bar, CA?

The drive from Placentia, CA to Diamond Bar, CA takes approximately 20 min by car.

The fastest route from Placentia, CA to Diamond Bar, CA covers 13 mi with a driving time of approximately 20 min.

Diamond Bar, CA lies roughly to the north of Placentia, CA.

Distance: 13 miDuration: 20 min

Driving from Placentia, CA to Diamond Bar, CA takes about 20 min via CA 57. The distance is 13 mi. The straight-line distance is 9 mi. Driving directions

Driving directions16 · 13 mi

The return trip from Diamond Bar, CA to Placentia, CA covers roughly the same distance, 13 mi.

No notable attractions were found along this route.

Distance and drive time are computed from OpenStreetMap road data with the OSRM routing engine. Updated 7 October 2026.

How far is it from Placentia, CA to Diamond Bar, CA?: The distance between Placentia, CA and Diamond Bar, CA is 13 mi by road.
How long does it take to drive from Placentia, CA to Diamond Bar, CA?: The drive from Placentia, CA to Diamond Bar, CA takes approximately 20 min by car.
What is the best route from Placentia, CA to Diamond Bar, CA?: The fastest route from Placentia, CA to Diamond Bar, CA covers 13 mi with a driving time of approximately 20 min.
Which direction is Diamond Bar, CA from Placentia, CA?: Diamond Bar, CA lies roughly to the north of Placentia, CA.