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Bianca Prieto Missing Person Case

Last seen in Rancho Cucamonga, California on Aug 21, 2022

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Victim Details

Created

Jun 30, 2023

Case Added

Feb 21, 2024

First Name

Bianca

Last Name

Prieto

Current Age

Age At Disappearance

Height

65 inches

Weight

135 lbs

Ethnicity

Hispanic / Latino

Gender

Female

Last Seen

Aug 21, 2022

City

Rancho Cucamonga

State

California

County

San Bernardino County

Zip Code

91739

Tribal Land

Yes

Agency ID

126195

Agency Name

Montclair Police Department

Agency City

Montclair

Agency State

California

Agency County

San Bernardino County

Agency Zip Code

91763

Agency Contact

Salvador Herrera

Contact Job Title

Detective

Agency Address

4870 Arrow Highway, California

Agency Phone

9094483600

Agency Jurisdiction

Local

Agency Type

Law Enforcement

Agency Website

https://www.cityofmontclair.org/city-government/police-department

Agency Case #

22-3155

Primary Agency

Montclair Police Department

Case Contributors

2388

Hair Color

Brown

Left Eye Color

Brown

Right Eye Color

Brown

Last Updated

Oct 5, 2026

Area Last Seen:

Case Description

Any updates on this case? Let us know!

Summary based on the NamUs case record (MP105079) and 2 other sources

Bianca Marisol Prieto, 26, was last seen on August 21, 2022, in Rancho Cucamonga, California. Her disappearance has left few clues, and limited details have emerged about the circumstances surrounding her case. Authorities have classified her as a missing person, and efforts to locate her have so far been unsuccessful. Investigators continue to seek information from the public, hoping to uncover any leads that could shed light on her whereabouts.

The California Department of Justice and other local agencies remain involved in her case, encouraging anyone with knowledge about her disappearance to come forward. Bianca's family and law enforcement continue to search for answers, with her case remaining open and active.
Last Seen: Aug 21, 2022

Links to Additional Sources (2)

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‼MISSING‼ Bianca Marisol Prieto... - Attempt to Locate | Facebook

Missing Person / NamUs #MP72330

Possible Unidentified Matches (1)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

78%Possible

Jane Doe — Alpine, California

UP107707 • Found Jun 5, 2023

View case

Sex ✓Female

Age 100%Est. 25–40 vs 26

Race 100%Hispanic

Location 75%101 mi away, same state

TimingFound 9 months after last seen

Height 100%5'3"–5'7" vs 5'5"

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Bianca Prieto Missing Person Case

Last seen in Rancho Cucamonga, California on Aug 21, 2022

Victim Details

Case Description

Links to Additional Sources (2)

Possible Unidentified Matches (1)

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