Crime & Safety Report for 627 E Ralston St, Ontario, CA 91761

Review crime and safety information near 627 E Ralston St, Ontario, CA 91761. 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

$899,000 | 10 bd | 6 ba | 2,413 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 361 offenders within 5 miles and 1401 crime incidents in the last 12 months.

361 Registered Sex Offenders within 5 miles Near 627 E Ralston St, Ontario, CA 91761

361 Registered Offenders Nearby
63 Rape
279 Child Involved
56 Assault
22 Other
Photo Name / Age / Tags Arrest / Conviction Address Distance Risk
Offender photo

MARTIN, TERRENCE RAY

37 years old

4763 BELMONT PL CHINO, CA, 91710
3.5 Medium
Offender photo

PERALTA, JAMES MENCIAS

74 years old

Child Involved

Rapist

8701 ARROW RTE RANCHO CUCAMONGA, CA, 91730
3.5 Medium
Offender photo

RAMIREZ, FRANCISCO

71 years old

Child Involved

9573 PINEWOOD DR RANCHO CUCAMONGA, CA, 91730
3.3 Medium
Offender photo

SIMPSON, DENNIS LEN

62 years old

Child Involved

8214 JADEITE ST RANCHO CUCAMONGA, CA, 91730
4.5 Medium
Offender photo

CARDENAS, STEPHAN

44 years old

Child Involved

1126 E BERMUDA DUNES ONTARIO, CA, 91761
2 Medium

1401 Crime & Incidents in the Last 12 Months

1401 Crime & Incidents by Severity
98 Severe
68 Medium
321 Low
914 Other
Crime Location (Approx.) Severity Description

Medical Emergency

07/16/2026 08:43 PM

W Foothill Blvd, Rancho Cucamonga, CA 91730

 Unknown

As discussed during the dispatch call, a person reported abdominal pain near Foothill Boulevard and Nut Street. Medic Engine 172 was dispatched.

Traffic

07/16/2026 07:53 PM

Ontario International Airport (ONT), International Arrivals Terminal, International Wy, Ontario, CA 91761

 LOW

As discussed during the dispatch call, air traffic control advised an inbound aircraft of a possible flight hazard from a police helicopter flying low near the final approach to Ontario International Airport. The helicopter was reportedly not on the radio frequency used by inbound traffic.

Medical Emergency

07/16/2026 07:46 PM

E Arrow Hwy C, Upland, CA 91786

 Unknown

As discussed during the dispatch call, a possible medical emergency involving chest pain is reported near East Arrow Highway between North 12th and North 13th Avenue.

Medical Emergency

07/16/2026 07:46 PM

Fir Dr e, Rancho Cucamonga, CA 91730

 Unknown

As discussed during the dispatch call, emergency crews are responding to a possible trauma injury at an apartment complex on Ford Drive in Rancho Cucamonga, near Placer Street and Arrow Route.

Medical Emergency

07/16/2026 07:25 PM

E 8th St, Upland, CA 91786

 Unknown

As discussed during the dispatch call, medical aid was provided for abdominal pain near Tellico Senior Center at North Eighth Street, between West Court Street and No Cross Street.

Nearby Schools

Schools within 2 miles of this property, nearest first.

SchoolDistance
De Anza Middle0.4 mi
Euclid Elementary0.5 mi
Baldy View ROP0.6 mi
Online Academy0.6 mi
Sultana Elementary0.9 mi
Lincoln Elementary1.1 mi
Bon View Elementary1.3 mi
Central Language Academy1.3 mi
Richard Haynes Elementary1.5 mi
Ontario High1.6 mi
Ray Wiltsey Middle1.7 mi
Mariposa Elementary1.7 mi
Del Norte Elementary1.8 mi
Vina Danks Middle1.8 mi
Oaks Middle1.8 mi

Similar properties in Ontario

Other for-sale homes in Ontario within about 20% of this listing's price. Open a property for a HoodScore safety preview.

$888,800
4 bd | 3 ba | 2,118 sqft
576 E Tam O Shanter St
Ontario, CA, 91761
View Safety Report

Frequently asked questions

Is 627 E Ralston St 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.