Orange County Dangerous Intersections and Accident Statistics

Bisnar Chase has compiled and sorted through a huge amount of data from the SWITRS (State-Wide Integrated Traffic Reports System), which is an online database of traffic incidents that take place in California. We aim to display key data about the most dangerous intersections and streets in Orange County to provide an awareness of specific dangers to motorists, pedestrians, and bicyclists within Orange County.

The first set of statistics listed below refer to the intersections and streets in Orange County with the most auto accidents from 2015-2019. All intersection data refers to accidents resulting in injury or fatality, occuring within 200 feet of the listed cross streets. Data for the OC streets with the most accidents includes crashes of all kinds, whether or not they resulted in injury.

Orange County Intersection Statistics: 2015-2019

Orange County Intersections with the Most Accidents

1Harbor Blvd & Orangethorpe Ave60821Fullerton
2Edinger Ave & Beach Blvd55890Huntington Beach
3Harbor Blvd & La Palma Ave55790Anaheim
4Ball Rd & Beach Blvd53841Anaheim
54th St & I-5 Santa Ana Fwy52771Santa Ana
6Ball Rd & Brookhurst St51811Anaheim
7Chapman Ave & Harbor Blvd50710Fullerton
8Beach Blvd & Talbert Ave47661Huntington Beach
9Newport Blvd & Del Mar Ave46750Costa Mesa
10Brookhurst St & La Palma Ave45681Anaheim
Most Accidents Map

Orange County Intersections with the Most Injuries

1Edinger Ave & Beach Blvd55890Huntington Beach
2Ball Rd & Knott Ave42840Anaheim
3Ball Rd & Beach Blvd53841Anaheim
4Lincoln Ave & Magnolia Ave43830Anaheim
5Harbor Blvd & Orangethorpe Ave60821Fullerton
6Ball Rd & Brookhurst St51811Anaheim
7Harbor Blvd & La Palma Ave55790Anaheim
84th St & I-5 Santa Ana Fwy52771Santa Ana
9Newport Blvd & Del Mar Ave46750Costa Mesa
10I-405 & Seal Beach Blvd43737Seal Beach


Most Injuries Map

Orange County Intersections with the Most Deaths

1SR 91 & Imperial Highway42658Anaheim
2I-405 & Seal Beach Blvd43737Seal Beach
3Beach Blvd & Katella Ave31344Stanton
4RT 57 & Chapman Ave23314Fullerton
5RT 57 & SR 9142654Anaheim
6I-405 & Fairview Rd49724Costa Mesa
7I-405 & SR 2216184Garden Grove
8RT 57 & Yorba Linda Blvd34474Fullerton
94th St & Tustin Ave21294Santa Ana
10SR 55 & Warner Ave35454Santa Ana
Most Deaths Map

Orange County Streets With The Most Accidents

1Harbor Blvd5663
2Euclid Street4335
3Chapman Avenue4184
4Beach Blvd3752
5Brookhurst Street3421
6Katella Avenue3028
7Main Street3021
8Lincoln Avenue2993
9Ball Road2269
10Imperial Highway2247
11Jamboree Road2180
12Bristol Street2020
13La Palma Avenue1847
14Magnolia Street1763
15Warner Avenue1365
16Edinger Avenue1346
Most Deaths Map

Insights from Intersection Accident Data

Traffic volume and speed is key

We can take plenty of insights from the Orange County street and intersection accident statistics collected above. Some of the details revealed might be expected, while others are surprising.

We can see that the top-10 intersections with the most accidents are located across five different cities: Anaheim, Santa Ana, Fullerton, Huntington Beach, and Costa Mesa. These cities are among the top-8 cities in Orange County in terms of population. It stands to reason that busier areas with greater traffic volumes would have more accidents.

For example, the intersection of Edinger Avenue and Beach Boulevard, in Huntington Beach, is joint second in terms of accident numbers and top of the table of most injuries. This area sees a huge volume of traffic, sitting next to a major shopping area, as well as the on/off ramps of the I-405 freeway at its main entrance to the city. It is no wonder that such intersections become accident black spots.

In terms of fatal collisions, our statistics show that many occur on or near freeways. Crashes are common at freeway entrances and exits, due to the high speeds of vehicles, as well as drivers attempting to merge across lanes or enter traffic. When crashes occur at high speeds, fatalities are far more common.

Our analysis of the streets with the most total accident numbers also reveals a numerical correlation. Streets such as Harbor Boulevard and Beach Boulevard feature prominently on this list, and these are major roads spanning dozens of miles through the heart of Orange County. It is natural that these longer roads will be hit by higher accident counts.

Many roads across the U.S. are built in straight lines, in gridded formats. This is the case in most areas of Orange County too, and most accident hotspots occur in these gridded areas. It is interesting to note that some of the newer areas of Irvine were built with deliberately curved streets to naturally slow traffic and prevent accidents. While Irvine has the third highest population in Orange County, it does not appear on any of the lists above.

Orange County City Data

Cities with the Most Accidents Per 1,000 People

This table provides a reference for how likely residents are to get into a car accident in certain cities. We calculate this by showing the accident rate per 1,000 people in the city’s population, rather than by total number of accidents.

Under this method, Seal Beach is at the top of the list with an accident rate almost 9x that of Aliso Viejo.

Why do we rank cities by accidents/1,000 people?

The city with the most accidents in Orange County is Anaheim, with 11,580 accidents from 2015-2019. That is to be expected, as Anaheim also has the highest population of any OC city, with 349,964 residents.

We work out how many accidents occur per 1,000 people because this produces statistics that are not purely dominated by volume, and give us a clearer understanding of how likely car accidents are in certain areas.

RankCityAccidentsPopulationAccidents / 1,000 People
Most Accidents Per 1,000 People
1Seal Beach10572420443.7
2Los Alamitos4601153439.9
3Fountain Valley19625602635
Fewest Accidents Per 1,000 People
30Laguna Woods112160536.9
31Yorba Linda383677255.7
32Rancho Santa Margarita269485035.5
33Villa Park3058615.1
34Aliso Viejo253506634.9


This data is provided as a service to Orange County road users to show some of the driving dangers across California. The statistics show a huge range of road risks that can vary by city, population size and density, hours of the day, and more. We also break down specific streets and intersections with in-depth accident figures, DUI figures, and much more. It shows that DUIs make up a small percentage of the total accident numbers, and are in a slight general decline, but are responsible for almost as many deaths as car accidents not involving alcohol or drugs.

It is not a shock that the longer roads see more accidents, or that a large percentage of fatalities occur near freeway ramps, due to the greater speeds causing collisions of higher impact. But some of the most dangerous intersections in Orange County might come as a surprise. In some cases, these dangerous intersections might simply feature a higher volume of traffic, causing more accidents. Others may have confusing layouts or a lack of visibility.

We hope that these statistics serve as a valuable resource to Orange County drivers. Feel free to use or cite the statistics; please attribute them to Bisnar Chase and link back to this page.

There are a lot of cars on the road in Orange County and across Southern California, and accidents are common. If you have been involved in a collision and need legal help, contact the expert car accident lawyers of Bisnar Chase. Call (800) 561-4887 or email us now.

Bisnar Chase Personal Injury Attorneys

1301 Dove St. STE 120, Newport Beach, CA 92660

(800) 561-4887