Car Accidents in San Diego County

San Diego County’s 3.3 million residents live in 18 cities and extensive unincorporated areas between the Pacific, the Mexican border and the mountains. The I-5 and I-805 run north-south through the coastal and central corridors; the I-15 connects downtown to Escondido and the Temecula Valley; the I-8 runs east to El Cajon and the mountains; the SR-78 carries North County traffic between Oceanside and Escondido; and the SR-94, SR-52, SR-56, SR-125 and SR-163 fill in the network. The San Ysidro and Otay Mesa ports of entry are the busiest land border crossings in the Western Hemisphere, adding cross-border and commercial traffic to the South Bay freeways.

The region’s mild climate makes it one of the state’s most active for motorcyclists and cyclists year-round, and the City of San Diego and several North County cities have adopted Vision Zero programs in response to pedestrian and cyclist deaths. Nine cities contract with the San Diego County Sheriff’s Office. This page covers the county-wide picture and links to the city pages.

Cities in San Diego County

Detailed pages for the county’s largest cities, each covering the local police agency, the freeways and arterials where collisions cluster, nearby hospitals and the courthouse that hears injury cases.

Other San Diego County communities

Who investigates and where claims are filed

Freeway collisions are investigated by CHP’s Border Division: the San Diego area office covers the central freeways; Oceanside covers North County coastal I-5 and SR-76/78; El Cajon covers the I-8 and East County; and the CHP’s South Bay operations cover the I-5, I-805 and SR-905 near the border.

Independent police departments serve San Diego, Chula Vista, Oceanside, Carlsbad, Escondido, El Cajon, National City, La Mesa and Coronado. Encinitas, Vista, San Marcos, Poway, Santee, Lemon Grove, Imperial Beach, Del Mar and Solana Beach contract with the San Diego County Sheriff’s Office, and reports come from the station serving the city. Communities such as La Jolla, Pacific Beach, Mira Mesa and Rancho Bernardo are within the City of San Diego and are served by SDPD divisions.

Injury lawsuits are filed in the Superior Court of California, County of San Diego. Civil cases are heard at the Hall of Justice downtown, with the North County Regional Center in Vista, the East County Regional Center in El Cajon and the South County Regional Center in Chula Vista handling cases from their regions. Government claims against the City of San Diego go to the City Clerk’s Risk Management; against the county, to the Clerk of the Board; against MTS or NCTD, to the transit agency.

Trauma and hospital care

San Diego County’s trauma system includes UC San Diego Health Hillcrest (Level I), Scripps Mercy Hospital (Level I), Scripps Memorial La Jolla (Level II), Sharp Memorial (Level II) and Palomar Medical Center in Escondido (Level II). Rady Children’s Hospital is the pediatric Level I center. Sharp Rehabilitation and the UCSD rehabilitation programs handle spinal cord and brain injury rehabilitation.

Collision patterns in San Diego County

Motorcycle collisions

Year-round riding weather, the I-15 and I-805 commute corridors and mountain routes like SR-79, SR-94 and Sunrise Highway make San Diego one of California’s highest-volume motorcycle crash counties. See motorcycle accidents and San Diego motorcycle collisions.

Cycling collisions

The Coast Highway 101 corridor through Encinitas and Carlsbad, the Pacific Beach and Mission Bay paths, and the downtown bike network produce steady cyclist injury counts. See bicycle accidents and San Diego bicycle collisions.

Border and commercial traffic

The I-5 and I-805 approaching San Ysidro and the SR-905 and SR-125 serving Otay Mesa carry cross-border commuters and commercial trucks; Mexican-plated vehicles raise insurance complications. See uninsured motorist accidents and truck accidents.

Military and base traffic

Camp Pendleton, Naval Base San Diego, MCAS Miramar and Naval Base Coronado generate commute traffic on the I-5 in Oceanside and the SR-163/I-15 corridor; crashes involving service members raise federal insurance and Tricare lien issues.

Serious injury

High-speed freeway, motorcycle and pedestrian collisions produce a large share of the county’s spinal cord injuries. See spinal cord injuries and San Diego spinal cord injury claims.

Local claim guides in San Diego County

San Diego County questions

My crash was in La Jolla or Pacific Beach. Which department?

Both are communities within the City of San Diego, so SDPD investigates and the report is requested from SDPD. Encinitas, Vista and San Marcos, by contrast, are separate cities policed by the Sheriff.

The other driver had Mexican insurance and plates. What now?

Mexican auto policies generally do not cover driving in the United States unless a U.S. rider was purchased. Treat the driver as potentially uninsured, open a UM claim with your insurer, and preserve all identifying information. Some Mexican insurers do offer U.S. coverage, so check the policy.

Where is a San Diego County injury lawsuit filed?

In the Superior Court of California, County of San Diego—at the Hall of Justice downtown for the central region, or the Vista, El Cajon or Chula Vista regional centers depending on where the crash occurred.

Sources and official resources

• California Highway Patrol — find an office
• California Courts Self-Help Guide
• Government Code § 911.2 (six-month claim deadline against public entities)
• California Office of Traffic Safety — crash rankings by city
• Insurance Code § 11580.2 (uninsured and underinsured motorist coverage)

Links go to official government, court and public-health sources. Laws change; verify current text before relying on it.