On Tuesday, authorities said the child had last been seen at about 3:34 p.m. near Dennison Street and Ditman Avenue.
In an update at 2:30 p.m. Wednesday, the sheriff's department said the girl had been found.
"Thank you to the public, the media, Aero Bureau, and deputy personnel for their tireless efforts in the search for Miss Miller," the department wrote.
Further details on where and how the child was located were unavailable.