Kelly Mattern Missing from Riverside, California age 44

Case Description

Any updates on this case? Let us know!

Kelly Marie Mattern, a 44-year-old woman, was last seen on March 6, 2023, in Riverside, California. Her case remains unresolved, with minimal details available regarding the circumstances of her disappearance. According to public records, Kelly was known to have a history of arrests prior to going missing, but no clear connection has been established between those incidents and her disappearance.

Authorities are still seeking information on her whereabouts, and the California Departmen ...Read More
Last Seen: Mar 06, 2023

Links to Additional Sources (2)

See any mistakes? Let us know!

Missing Person / NamUs #MP103557 - Office of Justice Programs

Kelly Marie Mattern | State of California - Department of Justice

Victim Details

created

May 17, 2023

Case Added

Jul 05, 2023

firstname

Kelly

lastname

Mattern

Current Age

45

Age at Disappearance

44

Height

67 inches

Weight

145 lbs

Weight To

170 lbs

ethnicity

White / Caucasian

gender

Female

Last Seen

Mar 06, 2023

City

Riverside

State

California

County

Riverside County

Zip Code

92501

Tribal Land

No

vehicles

271

Agency ID

125298

Agency Name

Riverside Police Department

Agency City

Riverside

Agency State

California

Agency County

Riverside County

Agency Zip Code

92505

Agency Contact

Agency Address

10540 Magnolia Avenue, California

Agency Phone

9513542007

Agency Jurisdiction

Local

Agency Type

Law Enforcement

Agency Website

https://www.riversideca.gov/rpd/default.asp

Agency Case #

230008628

Agency Report Date

2023-04-02

Primary Agency

Riverside Police Department

caseContributors

2062

Hair Color

Brown

Left Eye Color

Blue

Right Eye Color

Blue

Last Updated

12/09/2025

Area Last Seen:

Kelly Mattern
Missing

Case Description

Links to Additional Sources (2)

Victim Details

Forum Posts (3)

Other Missing Cases from Riverside, California