CA · County

Costa Mesa Car Accidents & Crashes

Costa Mesa County has recorded 3,248 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: 3,248 accident.

3,248

Total Crashes

All time records

18

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 500 incidents with location data · click a marker to view details

Crash Records

Costa Mesa Incidents

3248 accident

Traffic collision, head-on on SR-55 NORTHBOUND

SR-55 NORTHBOUND 4 days, 9 hours ago

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

Moderate Accident

I-405 SOUTHBOUND TO SR-73 SOUTHBOUND 5 days, 13 hours ago

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

Moderate Accident

I-405 S/B 6 days, 13 hours ago

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

Moderate Accident

I-405 S/B 1 week ago

Injury crash — 1 injured on I-405 SOUTHBOUND

Moderate Accident

I-405 SOUTHBOUND 1 week, 1 day ago

Traffic collision on I-405 NORTHBOUND TO HARBOR BLVD.

I-405 NORTHBOUND TO HARBOR BLVD. 1 week, 3 days ago

Traffic collision — hit and run on I-405 SOUTHBOUND

I-405 SOUTHBOUND 1 week, 3 days ago

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

Moderate Accident

SR-55 SOUTHBOUND 1 week, 5 days ago

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

I-405 S/B FROM FAIRVIEW RD. 1 week, 6 days ago

Traffic collision, rear-end on SR-55 NORTHBOUND

SR-55 NORTHBOUND 2 weeks ago

Traffic collision, rear-end on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 2 weeks, 2 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, 3 days ago

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

Moderate Accident

SR-55 SOUTHBOUND 2 weeks, 3 days ago

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

Moderate Accident

I-405 SOUTHBOUND 2 weeks, 4 days ago

Traffic collision on I-405 SOUTHBOUND

I-405 SOUTHBOUND 2 weeks, 4 days ago

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

Moderate Accident

IRVINE AV 2 weeks, 4 days ago

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

Moderate Accident

SR-55 NORTHBOUND 2 weeks, 4 days ago

Injury crash — 1 injured on SR-55 NORTHBOUND

Moderate Accident

SR-55 NORTHBOUND 2 weeks, 4 days ago

Traffic collision, rear-end on SR-73 SOUTHBOUND

SR-73 SOUTHBOUND 2 weeks, 4 days ago

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

Moderate Accident

VICTORIA ST 2 weeks, 5 days ago

Injury crash — 1 injured — bicycle involved on FAIRVIEW RD

Moderate Accident

FAIRVIEW RD 2 weeks, 5 days ago

Traffic collision, rear-end on BRISTOL STREET

BRISTOL STREET 2 weeks, 5 days ago

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

I-405 S/B 2 weeks, 6 days ago

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

I-405 N/B 2 weeks, 6 days ago

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

Moderate Accident

HARBOR BL 2 weeks, 6 days ago

Injury crash — 2 injured, broadside on HARBOR BL

Moderate Accident

HARBOR BL 3 weeks, 1 day ago

Traffic collision on NEWPORT BL

NEWPORT BL 3 weeks, 1 day ago

Traffic collision on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 3 weeks, 2 days ago

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

Moderate Accident

17TH ST 3 weeks, 2 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, 3 days ago

Traffic collision, rear-end on SR-73 NORTHBOUND

SR-73 NORTHBOUND 3 weeks, 4 days ago

Traffic collision, head-on — hit and run on SUNFLOWER AV

SUNFLOWER AV 3 weeks, 4 days ago

Traffic collision, rear-end on SR-55 SOUTHBOUND TO 22ND STREET

SR-55 SOUTHBOUND TO 22ND STREET 3 weeks, 5 days ago

Traffic collision on I-405 S/B

I-405 S/B 3 weeks, 5 days ago

Injury crash — 1 injured, rear-end — hit and run on SR-73 NORTHBOUND

Moderate Accident

SR-73 NORTHBOUND 3 weeks, 6 days ago

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

Moderate Accident

SR-55 NORTHBOUND 3 weeks, 6 days ago

Injury crash — 1 injured on HARBOR BL

Moderate Accident

HARBOR BL 3 weeks, 6 days ago

Traffic collision on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 4 weeks ago

Injury crash — 1 injured, head-on on WILSON ST

Moderate Accident

WILSON ST 4 weeks, 1 day ago

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

Moderate Accident

I-405 NORTHBOUND 4 weeks, 1 day ago

Traffic collision on NEWPORT BL

NEWPORT BL 4 weeks, 1 day ago

Traffic collision on HARBOR BL

HARBOR BL 1 month ago

Injury crash — 1 injured, rear-end on 18TH ST

Moderate Accident

18TH ST 1 month ago

Traffic collision, overturned vehicle — hit and run on SR-73 N/B TO I-405 N/B

SR-73 N/B TO I-405 N/B 1 month ago

Injury crash — 1 injured, rear-end on NEWPORT BL NB

Moderate Accident

NEWPORT BL NB 1 month ago

Traffic collision, rear-end on SR-55 NORTHBOUND

SR-55 NORTHBOUND 1 month ago

Traffic collision on WILSON ST

WILSON ST 1 month ago

Traffic collision, rear-end on SR-55 SOUTHBOUND

SR-55 SOUTHBOUND 1 month ago

Traffic collision, rear-end on HARBOR BL

HARBOR BL 1 month ago

Traffic collision, rear-end — hit and run on BRISTOL ST

BRISTOL ST 1 month ago