Crime Solvers Central
CSC
263 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Katherine Demianczyk missing person case profile photo

Katherine Demianczyk Missing Person Case

Last seen in Philadelphia, Pennsylvania on Nov 20, 2018

Victim Details

Sep 01, 2020

Sep 03, 2020

Katherine

Demianczyk

32

25

60 inches

62 inches

100 lbs

135 lbs

White / Caucasian

Female

Nov 20, 2018

Philadelphia

Pennsylvania

Philadelphia County

19111

No

90720

Philadelphia Police Department

Philadelphia

Pennsylvania

Philadelphia County

19130

400 North Broad Street, Pennsylvania

2156863334

Local

Law Enforcement

20-02-040490

2020-08-31

Philadelphia Police Department

8185

Blond/Strawberry

Blue

Blue

No

07/16/2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
In the city of Philadelphia, Pennsylvania, a 25-year-old woman named Katherine Ann Demianczyk, also known as Katie, vanished around 2018. Born on January 31, 1993, Katie spent her early years in Coral Springs, Florida, before her family moved to Pennsylvania when she was about twelve. By her mid-20s, life had become challenging for Katie; she was a mother and was experiencing homelessness, often spending time in the Kensington area of Philadelphia, as well as in Toms River and Farmingdale, New J ...
MEMBER ACCESS

Continue reading the complete case summary

Unlock the full case narrative for Katherine Demianczyk, all available source links, additional videos, and member discussions.

Unlock Full Case Access — $3.97/month
Cancel anytime.
Already a member? Log in

Last Seen: Nov 20, 2018

Links to Additional Sources (11)

See any mistakes? Let us know!
  • Katherine “Katie” Anna Demianczyk, Missing Since About August ...
  • Missing Person / NamUs #MP73198
    • MEMBER ACCESS

    Unlock 9 additional sources

    View the complete collection of available reporting and reference links for this case.

    View All Case Sources — $3.97/month
    Cancel anytime.
    Already a member? Log in

    Latest News

    View All

    Forum Posts (2)

    Hey everyone, I've been thinking a lot about Katie Demianczyk's case, especially how her daughter's ... ...Read More
    11/29/2024
    Hey everyone, been following Katie's case for a bit and wanted to bring up something that might have... ...Read More
    06/09/2024
    MEMBER ACCESS

    Join the discussion for Katherine Demianczyk

    Read full forum posts and contribute to this case discussion.

    Unlock forum access — $3.97/month
    Already a member? Log in

    Other Missing Cases from Philadelphia, Pennsylvania

    Suhaylah Batchelor missing person case in Philadelphia, Pennsylvania

    Suhaylah Batchelor

    Missing: Jan 29, 2026
    In the city of Philadelphia, Pennsylvania, a young life was interrupted, creating a void of uncertai ...Read More
    Chleise Drew missing person case in Philadelphia, Pennsylvania

    Chleise Drew

    Missing: Aug 03, 2010
    In the summer of 2010, a family's life was forever altered by the silent disappearance of a loved on ...Read More
    Jennah Gilmore missing person case in PHILADELPHIA, Pennsylvania

    Jennah Gilmore

    Missing: Mar 27, 2026
    In the late days of March 2026, a family's life was irrevocably altered when seventeen-year-old Jenn ...Read More
    Dorothy Forstein missing person case in Philadelphia, Pennsylvania

    Dorothy Forstein

    Missing: Oct 14, 1949
    In a case that continues to baffle investigators and capture public imagination, 40-year-old Dorothy ...Read More
    Marilyn Lanier missing person case in Philadelphia, Pennsylvania

    Marilyn Lanier

    Missing: Mar 30, 2003
    On a late March evening in 2003, a 45-year-old woman named Marilyn Lanier was last seen in Philadelp ...Read More
    Kennedy Pinckney missing person case in Philadelphia, Pennsylvania

    Kennedy Pinckney

    Missing: Mar 04, 2025
    In the heart of Philadelphia, Pennsylvania, a family's life was forever altered on the evening of Ma ...Read More
    Virgie Nowell missing person case in Philadelphia, Pennsylvania

    Virgie Nowell

    Missing: Jun 16, 2017
    In the early summer of 2017, a 44-year-old woman named Virgie Nowell vanished from Philadelphia, Pen ...Read More