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Case Description
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Maria Guadalupe Serrano, a 28-year-old housekeeper, vanished from Half Moon Bay, California, on Saturday, October 17, 1998. She was last seen at approximately 2:30 p.m. leaving her rented room on Cypress Street to walk to a client's home on Purissima Street to clean. Serrano never arrived at her destination and has not been seen or heard from since. Her disappearance coincided with the town's annual Pumpkin Festival, which would have drawn unusually large crowds to the area.

Described a ...Read More
Last Seen: Oct 17, 1998
Victim Details

Jan 24, 2026

Jan 24, 2026

Maria

Guadalupe Serrano

28

28

5'1 inches

180 lbs

Hispanic

Female

Serrano was last seen leaving her home in Half Moon Bay, California at 2:30 p.m. on October 17, 1998. A housekeeper, she left her rented room on Cypress Street to clean a client's home on Purissima Street. She never arrived there and has never been heard from again. She disappeared on the day the Pumpkin Festival was taking place in town. Serrano is described as a very reserved and quiet individual who spoke no English. She had moved to the United States from Mexico, leaving two young children behind in Mexico, whom she sent money to on a regular basis. Since her disappearance, her children have emigrated to the U.S. and are still hoping she will be found. Initially, Serrano's case was investigated by the Half Moon Bay Police Department. This department no longer exists and after it was dissolved, the San Mateo County Sheriff's Office took over the case. Serrano's disappearance remains unsolved.

Oct 17, 1998

Half Moon Bay

California

Half Moon Bay

3

San Mateo County Sheriff’s Office

650-363-4062

01/25/2026