Police say the two have been reunited with their family and are unharmed.
Authorities did not release details on where they were found or what led up to their disappearance.
Claudia Ramirez-Banales and her daughter Abigail were last seen Saturday night at her family's home in San Mateo.
Family members told investigators Claudia wanted to live separately from them and they fear for the safety of the young family.
EDITOR'S NOTE: The video above is from a previous report.