The Harford Center Inc. and the Harford Jewish Center near Havre de Grace were ransacked between Monday night and early Tuesday, the county Sheriff's Department said.
The two centers are located across the street from each other on North Earlton Road at the Route 155 intersection.
At both centers, classrooms were ransacked, and windows, screens,doors and door frames were damaged, the department said. A damage estimate was not available.
Nothing was reported stolen from either of the centers, the department said.
The centers were entered through classroom windows, the department said.
Anyone with information on the break-ins is asked to call police at 838-6600.