CA · County

Costa Mesa Car Accidents & Crashes

Costa Mesa County has recorded 3,273 traffic crashes since 2024, including 18 fatal incidents. In the last 24 hours, 0 new crashes were reported. Crash volume is highest on I-405 SOUTHBOUND and HARBOR BL.

Data is sourced from the California Crash Records System (CCRS), maintained by the California Highway Patrol and updated daily, and the CA 511 live incident feed, refreshed every 15 minutes. CCRS records include party details, injury severity, vehicle information, and precise geographic coordinates. Last updated July 23, 2026.

Breakdown by type: 55 accident.

55

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 54 incidents with location data · click a marker to view details

Crash Records

Costa Mesa Incidents 55 results

55 accident

Traffic collision, head-on on SR-55 NORTHBOUND

SR-55 NORTHBOUND 1 week ago

Injury crash — 1 injured on I-405 SOUTHBOUND TO SR-73 SOUTHBOUND

Moderate Accident

I-405 SOUTHBOUND TO SR-73 SOUTHBOUND 1 week, 1 day ago

Traffic collision, rear-end on SR-55 NORTHBOUND TO MACARTHUR BLVD

SR-55 NORTHBOUND TO MACARTHUR BLVD 1 week, 2 days ago

Injury crash — 1 injured, rear-end on I-405 S/B

Moderate Accident

I-405 S/B 1 week, 2 days ago

Injury crash — 3 injured, rear-end on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 1 week, 2 days ago

Injury crash — 2 injured, rear-end on I-405 S/B

Moderate Accident

I-405 S/B 1 week, 3 days ago

Injury crash — 1 injured on I-405 SOUTHBOUND

Moderate Accident

I-405 SOUTHBOUND 1 week, 4 days ago

Injury crash — 4 injured on SR-73 NORTHBOUND

SR-73 NORTHBOUND 1 week, 5 days ago

Traffic collision on I-405 NORTHBOUND TO HARBOR BLVD.

I-405 NORTHBOUND TO HARBOR BLVD. 1 week, 6 days ago

Traffic collision — hit and run on I-405 SOUTHBOUND

I-405 SOUTHBOUND 1 week, 6 days ago

Injury crash — 1 injured, rear-end on BRISTOL ST

Moderate Accident

BRISTOL ST 2 weeks ago

Injury crash — 1 injured — pedestrian involved on POMONA AV

Moderate Accident

POMONA AV 2 weeks ago

Injury crash — 1 injured, broadside — bicycle involved on HAMILTON ST

Moderate Accident

HAMILTON ST 2 weeks, 1 day ago

Injury crash — 1 injured, rear-end on SR-55 SOUTHBOUND

Moderate Accident

SR-55 SOUTHBOUND 2 weeks, 1 day ago

Traffic collision on 19TH ST

19TH ST 2 weeks, 2 days ago

Traffic collision, rear-end on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 2 weeks, 2 days ago

Traffic collision, rear-end on I-405 S/B FROM FAIRVIEW RD.

I-405 S/B FROM FAIRVIEW RD. 2 weeks, 2 days ago

Injury crash — 1 injured, rear-end on JOANN ST

Moderate Accident

JOANN ST 2 weeks, 3 days ago

Traffic collision, rear-end on SR-55 NORTHBOUND

SR-55 NORTHBOUND 2 weeks, 3 days ago

Injury crash — 1 injured, rear-end on HARBOR BL

Moderate Accident

HARBOR BL 2 weeks, 3 days ago

Traffic collision, rear-end on MACE AV

MACE AV 2 weeks, 5 days ago

Traffic collision, rear-end — hit and run on PAULARINO AV

PAULARINO AV 2 weeks, 5 days ago

Traffic collision, rear-end on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 2 weeks, 5 days ago

Injury crash — 1 injured, rear-end on I-405 NORTHBOUND TO SR-55 SOUTHBOUND

Moderate Accident

I-405 NORTHBOUND TO SR-55 SOUTHBOUND 2 weeks, 6 days ago

Injury crash — 1 injured, rear-end on SR-55 SOUTHBOUND

Moderate Accident

SR-55 SOUTHBOUND 2 weeks, 6 days ago

Traffic collision on MERRIMAC WY

MERRIMAC WY 3 weeks ago

Traffic collision — hit and run on FAIRVIEW RD

FAIRVIEW RD 3 weeks ago

Injury crash — 1 injured, rear-end on I-405 SOUTHBOUND

Moderate Accident

I-405 SOUTHBOUND 3 weeks ago

Traffic collision on I-405 SOUTHBOUND

I-405 SOUTHBOUND 3 weeks ago

Injury crash — 1 injured, broadside — bicycle involved on IRVINE AV

Moderate Accident

IRVINE AV 3 weeks ago

Injury crash — 2 injured, rear-end — hit and run on SR-55 NORTHBOUND

Moderate Accident

SR-55 NORTHBOUND 3 weeks ago

Injury crash — 1 injured on SR-55 NORTHBOUND

Moderate Accident

SR-55 NORTHBOUND 3 weeks ago

Injury crash — 1 injured, rear-end on HARBOR BL

Moderate Accident

HARBOR BL 3 weeks ago

Traffic collision, rear-end on SR-73 SOUTHBOUND

SR-73 SOUTHBOUND 3 weeks ago

Traffic collision, broadside — hit and run, bicycle involved on HAMILTON ST

HAMILTON ST 3 weeks, 1 day ago

Injury crash — 1 injured, rear-end on VICTORIA ST

Moderate Accident

VICTORIA ST 3 weeks, 1 day ago

Injury crash — 1 injured — bicycle involved on FAIRVIEW RD

Moderate Accident

FAIRVIEW RD 3 weeks, 1 day ago

Traffic collision, rear-end on BRISTOL STREET

BRISTOL STREET 3 weeks, 1 day ago

Traffic collision, rear-end on I-405 S/B

I-405 S/B 3 weeks, 2 days ago

Traffic collision, rear-end on I-405 N/B

I-405 N/B 3 weeks, 2 days ago

Injury crash — 2 injured, broadside — bicycle involved on HARBOR BL

Moderate Accident

HARBOR BL 3 weeks, 2 days ago

Traffic collision — hit and run on KILLYBROOKE LN

KILLYBROOKE LN 3 weeks, 4 days ago

Traffic collision, broadside on HARBOR BL

HARBOR BL 3 weeks, 4 days ago

Injury crash — 2 injured, broadside on HARBOR BL

Moderate Accident

HARBOR BL 3 weeks, 4 days ago

Traffic collision on NEWPORT BL

NEWPORT BL 3 weeks, 4 days ago

Traffic collision on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 3 weeks, 5 days ago

Traffic collision, broadside on 17TH ST

17TH ST 3 weeks, 5 days ago

Traffic collision, broadside on FAIR DR

FAIR DR 3 weeks, 5 days ago

Injury crash — 1 injured, rear-end on 17TH ST

Moderate Accident

17TH ST 3 weeks, 5 days ago

Traffic collision, rear-end on SR-55 N/B FROM NEWPORT AVE N/B

SR-55 N/B FROM NEWPORT AVE N/B 3 weeks, 6 days ago