Crime & Safety Report for 20920 Running Branch Rd, Diamond Bar, CA 91765

Review crime and safety information near 20920 Running Branch Rd, Diamond Bar, CA 91765. HoodScore summarizes nearby reported incidents, registered sex offenders, and neighborhood safety indicators to help buyers and renters perform better location due diligence.

Generated At — 2026-07-25

$1,380,000 | 4 bd | 3 ba | 2,558 sqft

Distance rings: 1 mi and 2 mi from the property.

PropertyIncidentsOffenders

Unlock the full safety report before making a decision about this neighborhood.

Full report contains 93 offenders within 5 miles and 873 crime incidents in the last 12 months.

93 Registered Sex Offenders within 5 miles Near 20920 Running Branch Rd, Diamond Bar, CA 91765

93 Registered Offenders Nearby
14 Rape
69 Child Involved
10 Assault
6 Other
Photo Name / Age / Tags Arrest / Conviction Address Distance Risk
Offender photo

CERVANTES, BRYAN CHRISTIAN

56 years old

Child Involved

22700 CHICORA DR DIAMOND BAR, CA, 91765
4.4 Medium
Offender photo

JIMENEZ, ERNESTO

57 years old

Child Involved

505 RICHFORD AVE LA PUENTE, CA, 91744
5 Medium
Offender photo

HARRIS, RICHARD

85 years old

Child Involved

20739 LYCOMING ST DIAMOND BAR, CA, 91765
3 Medium
Offender photo

PINA, MARQUES ALEXANDER

27 years old

Child Involved

23433 ROBINBROOK PL DIAMOND BAR, CA, 91765
3.3 Medium
Offender photo

VALDEZ, RICHARD JOE

71 years old

Child Involved

650 JELLICK AVE EVAL LA PUENTE, CA, 91744
4.3 Medium

873 Crime & Incidents in the Last 12 Months

873 Crime & Incidents by Severity
94 Severe
82 Medium
177 Low
520 Other
Crime Location (Approx.) Severity Description

Traffic

07/16/2026 10:05 PM

CA-60, Diamond Bar, CA

 LOW

As discussed during the dispatch call, officers respond to a possible traffic hazard on a highway near Diamond Bar, where one vehicle is blocking the slow lane and several others are stopped on the right shoulder with flat tires, possibly due to roadway debris.

Medical Emergency

07/16/2026 09:34 PM

Bluffwood St, Rowland Heights, CA 91748

 Unknown

As discussed during the dispatch call, a sick person required an advanced life support response near Bluffwood Street by Blue Haven Drive.

Medical Emergency

07/16/2026 09:20 PM

Joshua St, West Covina, CA 91792

 Unknown

As discussed during the dispatch call, a medical call for a nosebleed was reported near Joshua Street, West Covina. Units Engine 125 and RA 124 responded. The location is near Eucalyptus Street and Dogwood.

Medical Emergency

07/16/2026 09:19 PM

Golden Springs Dr, Diamond Bar, CA 91765

 Unknown

As discussed during the dispatch call, a medical rescue was reported near Golden Springs Drive, close to South Rancheria Road, in the 120's district.

Medical Emergency

07/16/2026 09:13 PM

Golden Springs Dr, Diamond Bar, CA 91765

 Unknown

As discussed during the dispatch call, a medical emergency was reported near Golden Springs Drive close to Ranchery Road in Walnut. Emergency units Engine Patrol 120 and Squad 187 were assigned to the scene which is in the 121 district.

Nearby Schools

Schools within 2 miles of this property, nearest first.

SchoolDistance
Castle Rock Elementary0.8 mi
Evergreen Elementary1.5 mi
Diamond Bar High1.6 mi

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Frequently asked questions

Is 20920 Running Branch Rd in a low-crime area?

The current report summarizes crime-related incidents within 5 miles during the last 12 months. HoodScore compares these records with relevant benchmarks, but no report can guarantee future safety.

Why are traffic and medical calls shown separately from crime?

Traffic, medical and fire records are public-safety incidents but are not necessarily crimes. HoodScore separates them to avoid overstating the crime count.

How often is this HoodScore report updated?

The report displays its generated date. Update frequency varies by source and is explained in the HoodScore methodology.

How is the HoodScore calculated?

HoodScore combines nearby crime and offender data into a neighborhood safety score. Visit https://www.hoodscore.com/hoodscore-calculator.html to see how the calculation works.