The police say they have some promising leads, although no arrests have been made yet.
Issa ranks among the wealthiest lawmakers on Capitol Hill. According to The Hill's "50 Wealthiest Lawmakers" list, the California Republican stood as the third richest member of Congress in 2012, with an estimated net worth of $140.6 million.
But it has been a tough financial year for the congressman. In addition to the burglary losses, his net worth plunged by nearly $80 million from the previous year.