Sun setting over the ocean with a long wooden pier in the distance
Photo: Cynthia Bluford Mejia / Unsplash

Orange County’s 3.2 million residents are spread across 34 cities connected by some of the most heavily used freeways in the country. The I-5 and I-405 merge at the El Toro Y in Irvine; the SR-91 carries Inland Empire commuters through Anaheim and Fullerton; the SR-55 links the coast to the inland cities; and the SR-73, SR-133, SR-241 and SR-261 toll roads carry south-county traffic at speeds that make collisions severe. On the surface streets, Beach Boulevard (SR-39), Harbor Boulevard, Pacific Coast Highway and the long arterials of Santa Ana and Anaheim account for a large share of the county’s pedestrian and intersection collisions.

The county’s cities differ sharply in who polices them, how reports are obtained and what kinds of crashes predominate. Thirteen cities contract with the Orange County Sheriff’s Department rather than running their own police departments, which changes where you request a report. This page explains the county-wide picture and links to detailed pages for the largest cities.

Cities in Orange 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 Orange County communities

Tustin

Tustin sits at the I-5/SR-55 interchange next to Santa Ana and Irvine; Tustin Police Department handles city-street collisions, including the Tustin Legacy and Old Town areas, while CHP handles the freeways.

Collision reports: Tustin Police Department · Freeways: I-5, SR-55, SR-261

Lake Forest

Lake Forest is policed under contract by the Orange County Sheriff’s Department, so city-street crash reports are requested from OCSD, not a city police department. The El Toro Road and Lake Forest Drive interchanges with I-5 carry heavy commuter volumes.

Collision reports: Orange County Sheriff’s Department (Lake Forest Police Services) · Freeways: I-5, SR-241

Laguna Niguel

Laguna Niguel contracts with the Orange County Sheriff’s Department. Crown Valley Parkway and Alicia Parkway are the main arterials connecting I-5 and SR-73 to residential neighborhoods.

Collision reports: Orange County Sheriff’s Department (Laguna Niguel Police Services) · Freeways: I-5, SR-73

Laguna Beach

Laguna Beach has its own police department. Pacific Coast Highway through downtown and the two-lane Laguna Canyon Road (SR-133) are the roads most residents and visitors use; summer and festival traffic adds pedestrians and cyclists to both.

Collision reports: Laguna Beach Police Department · Freeways: SR-1 (Pacific Coast Highway), SR-133 (Laguna Canyon Road)

San Clemente

San Clemente is policed by the Orange County Sheriff’s Department under contract. I-5 through San Clemente is the only freeway link between Orange and San Diego counties, so holiday and weekend traffic is heavy; El Camino Real and Avenida Pico serve as parallel surface routes.

Collision reports: Orange County Sheriff’s Department (San Clemente Police Services) · Freeways: I-5

San Juan Capistrano

San Juan Capistrano is served by the Orange County Sheriff’s Department. The Ortega Highway (SR-74) begins here and climbs into the Santa Ana Mountains as a two-lane rural highway; CHP, not the city, handles collisions on that route outside city limits.

Collision reports: Orange County Sheriff’s Department (San Juan Capistrano Police Services) · Freeways: I-5, SR-74 (Ortega Highway)

Aliso Viejo

Aliso Viejo contracts with the Orange County Sheriff’s Department. The city is bisected by the SR-73 toll road, with Aliso Creek Road, Pacific Park Drive and Aliso Viejo Parkway serving as the main local arterials.

Collision reports: Orange County Sheriff’s Department (Aliso Viejo Police Services) · Freeways: SR-73

Rancho Santa Margarita

Rancho Santa Margarita is policed by the Orange County Sheriff’s Department. Most trips in and out use the SR-241 toll road or Santa Margarita Parkway and Antonio Parkway.

Collision reports: Orange County Sheriff’s Department (Rancho Santa Margarita Police Services) · Freeways: SR-241

Who investigates and where claims are filed

Freeway and toll road collisions anywhere in the county are investigated by the California Highway Patrol. CHP’s Santa Ana, Westminster, San Juan Capistrano and Capistrano area offices divide the county; the report (CHP 555) is requested from the office that handled the crash using form CHP 190.

City street collisions are investigated by the city’s own police department in Anaheim, Santa Ana, Irvine, Huntington Beach, Garden Grove, Fullerton, Orange, Costa Mesa, Newport Beach, Tustin, Westminster, Buena Park, Brea, Placentia, La Habra, Cypress, Los Alamitos, Seal Beach, Fountain Valley, Laguna Beach and La Palma. Mission Viejo, Lake Forest, Laguna Niguel, Laguna Hills, Laguna Woods, Aliso Viejo, Rancho Santa Margarita, San Clemente, San Juan Capistrano, Dana Point, Yorba Linda, Villa Park and Stanton are policed by the Orange County Sheriff’s Department, and reports come from OCSD.

Injury lawsuits are filed in the Superior Court of California, County of Orange. Civil cases are heard primarily at the Central Justice Center in Santa Ana; limited civil matters may be assigned to other justice centers. Government claims against a city go to that city clerk; claims against the county go to the Clerk of the Board of Supervisors; claims against Caltrans for a state highway condition go to the Caltrans district or the Government Claims Program.

Trauma and hospital care

Orange County has three adult trauma centers: UCI Medical Center in Orange (Level I), Orange County Global Medical Center in Santa Ana (Level II) and Providence Mission Hospital in Mission Viejo (Level II). Children’s Hospital of Orange County (CHOC) in Orange is the pediatric trauma center. Seriously injured crash victims are transported to one of these regardless of which city they were in.

Collision patterns in Orange County

Freeway rear-end and multi-vehicle collisions

The I-5 through Santa Ana, Tustin and Irvine, the I-405 through Costa Mesa and Huntington Beach, and the SR-91 through Anaheim produce daily congestion-related rear-end chains. See rear-end accidents and freeway accidents.

Pedestrian collisions on wide arterials

Santa Ana, Anaheim and Garden Grove have some of the county’s highest pedestrian injury counts, concentrated on Harbor, Beach, First Street, Bristol and Euclid. See pedestrian accidents and our Santa Ana pedestrian collision page.

Coastal cycling and PCH

Pacific Coast Highway from Seal Beach to Dana Point, and the Santa Ana River Trail crossings, are the county’s busiest cycling corridors. See bicycle accidents and our Huntington Beach bicycle collision page.

Toll road and canyon high-speed crashes

The SR-241 and SR-73 toll roads, Santiago Canyon Road and Ortega Highway (SR-74) see high-speed single-vehicle, head-on and motorcycle crashes. See head-on collisions and motorcycle accidents.

Disneyland Resort and stadium traffic

Anaheim’s resort district and the Angel Stadium / Honda Center area generate rideshare, pedestrian and out-of-town driver collisions. See rideshare accidents.

Local claim guides in Orange County

Orange County questions

Which CHP office has my Orange County freeway crash report?

It depends on the location. CHP Santa Ana covers the central county freeways (I-5, SR-55, SR-22, I-405 north of Costa Mesa); Westminster covers the northwest (I-405 west, SR-22 west, I-605, SR-91 west); San Juan Capistrano covers south county I-5 and the toll roads. The officer’s card or the CHP website’s office locator will confirm.

My crash was in Mission Viejo. Why does the report say Sheriff?

Mission Viejo, like 12 other Orange County cities, contracts with the Orange County Sheriff’s Department for police services. The report is an OCSD report and is requested from the Sheriff, not a city police department.

Where would an Orange County injury lawsuit be filed?

In the Superior Court of California, County of Orange, generally at the Central Justice Center in Santa Ana for unlimited civil cases (over $35,000).

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