The veteran senator's stock and land holdings fared well last year.
Feinstein is married to investor Richard Blum, the president and CEO of the private equity firm Blum Capital Partners, and much of her wealth comes from his investments.
Together, the couple owns a minimum $5 million share of the Hotel Carlton in San Francisco. They've also reported having a million-dollar condo in Hawaii.
Feinstein's liabilities remained constant from 2011, at a minimum of $2 million.
— Megan R. Wilson