Fullerton intersections ranked by reported crashes

45 confirmed surface-street junctions in Fullerton, Orange County, carrying 1,026 reported crashes between them in 2023, 2024 and 2025. 50 junctions were attempted here and 45 could be confirmed by two independent sources; the rest were dropped rather than guessed at.

This is a count of reported crashes, not a measure of risk. It is not adjusted for traffic volume, and a difference of two or three crashes between neighbouring rows is within ordinary year-to-year variation rather than a real gap. It says nothing about fault or about any individual claim.

Confirmed junctions in Fullerton, 2023–2025
# Junction County Crashes Injured Killed 2026 so far part year, not ranked
1 Chapman Ave & State College Blvd Orange 48 45 0 3
2 Harbor Blvd & Orangethorpe Ave Orange 42 36 1 5
3 Kimberly Ave & State College Blvd Orange 42 58 0 6
4 Euclid St & Orangethorpe Ave Orange 41 38 0 6
5 Brookhurst Rd & Orangethorpe Ave Orange 40 42 0 9
6 Chapman Ave & Harbor Blvd Orange 30 42 0 6
7 Acacia Ave & Kimberly Ave Orange 29 42 0 1
8 Highland Ave & Orangethorpe Ave Orange 29 35 0 2
9 Placentia Ave & Yorba Linda Blvd Orange 27 27 0 2
10 Magnolia Ave & Orangethorpe Ave Orange 27 20 0 3
11 Gilbert St & Orangethorpe Ave Orange 26 28 1 1
12 Brookhurst Rd & Commonwealth Ave Orange 26 24 0 3
13 Euclid St & Valencia Dr Orange 26 22 0 6
14 Bastanchury Rd & Harbor Blvd Orange 26 16 0 7
15 Commonwealth Ave & Harbor Blvd Orange 25 39 0 3
16 Orangethorpe Ave & State College Blvd Orange 25 24 0 6
17 Baker Ave & Euclid St Orange 24 23 0 5
18 Commonwealth Ave & Raymond Ave Orange 23 26 0 4
19 Commonwealth Ave & Gilbert St Orange 22 24 0 7
20 Commonwealth Ave & Euclid St Orange 22 24 0 3
21 Associated Rd & Bastanchury Rd Orange 21 29 0 2
22 Magnolia Ave & Valencia Dr Orange 21 26 0 3
23 Nutwood Ave & State College Blvd Orange 20 20 0 2
24 Euclid St & Malvern Ave Orange 19 25 0 4
25 Gilbert St & Malvern Ave Orange 19 21 0 1
26 Commonwealth Ave & Highland Ave Orange 19 20 0 3
27 Amerige Ave & Harbor Blvd Orange 19 11 0 2
28 Bastanchury Rd & State College Blvd Orange 18 24 0 4
29 Commonwealth Ave & State College Blvd Orange 18 20 0 3
30 Chapman Ave & Commonwealth Ave Orange 18 17 0 5
31 Acacia Ave & Valencia Dr Orange 17 18 0 2
32 Madison Ave & Placentia Ave Orange 17 15 0 4
33 Orangethorpe Ave & Richman Ave Orange 16 18 1 none reported yet
34 Bastanchury Rd & Brea Blvd Orange 16 24 0 3
35 Gilbert St & Pioneer Ave Orange 16 23 0 1
36 Chapman Ave & Lemon St Orange 16 16 0 3
37 Acacia Ave & Chapman Ave Orange 16 15 0 1
38 Associated Rd & Yorba Linda Blvd Orange 16 12 0 2
39 Harbor Blvd & Santa Fe Ave Orange 16 9 0 4
40 Berkeley Ave & Harbor Blvd Orange 15 18 1 3
41 Brookhurst Rd & Valencia Dr Orange 15 21 0 3
42 Berkeley Ave & Chapman Ave Orange 15 20 0 4
43 Orangethorpe Ave & Raymond Ave Orange 15 11 0 1
44 Commonwealth Ave & Lemon St Orange 14 20 0 1
45 Chapman Ave & Raymond Ave Orange 14 12 0 1

This ranking covers 2023–2025. The 2026 figures are separate. They run from January to August 2026 — every whole month the state has published so far — and they are not part of the ranking or of any total above. Police agencies file at different speeds, so putting a part-reported year in a ranking would order agencies by how fast they file rather than roads by how often they are hit.

Recent months are still filling in, so treat them as a floor rather than a count. August 2026 held about 48% of what that month averaged across 2023–2025 when this data was compiled, so its real total will be higher. September 2026 is left out entirely: the state's file stops on 2026-09-01, so that month holds 15 records — a part of a month rather than a month that is late being filed.

Reporting runs at different speeds from one police department to the next, so this matters more than the statewide figure: Fullerton has filed 676 crashes for January–August 2026, against about 891 predicted by the same 2023–2025 crash rate — roughly 76%. So "none reported yet" in the 2026 column means no report has arrived for that junction, which is not the same as no crash happening there.

Sources: California Crash Reporting System (CCRS), California Highway Patrol; locations from the US Census Geocoder, each confirmed by a second independent source to within 50 metres. Method and limitations: methodology.