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

The distance between Diamond Bar, CA and Placentia, CA is 19 km by road.

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

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

The fastest route from Diamond Bar, CA to Placentia, CA covers 19 km with a driving time of approximately 20 min.

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

Distance: 19 kmDrive time: 20 min

Driving from Diamond Bar, CA to Placentia, CA takes about 20 min via CA 57. The distance is 19 km. The straight-line distance is 14 km. Driving directions

Driving directions13 · 19 km

The return trip from Placentia, CA to Diamond Bar, CA covers roughly the same distance, 19 km.

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 Diamond Bar, CA to Placentia, CA?: The distance between Diamond Bar, CA and Placentia, CA is 19 km by road.
How long does it take to drive from Diamond Bar, CA to Placentia, CA?: The drive from Diamond Bar, CA to Placentia, CA takes approximately 20 min by car.
What is the best route from Diamond Bar, CA to Placentia, CA?: The fastest route from Diamond Bar, CA to Placentia, CA covers 19 km with a driving time of approximately 20 min.
Which direction is Placentia, CA from Diamond Bar, CA?: Placentia, CA lies roughly to the south of Diamond Bar, CA.