Minimum net worth: $41.78 million
Feinstein's minimum net worth dropped about $3.6 million to $41.78 million in 2011.
But the reduction is hardly something to worry about when you're one of the wealthiest lawmakers in Congress.
Much of the apparent decline is due to a mortgage of $1 million to $5 million taken out on Feinstein's San Francisco home in 2010. This year's financial disclosures were the first batch that required lawmakers to disclose mortgages on personal residences that do not generate income.
The California Democrat continues to share a $5 million to $25 million investment in San Francisco's Carlton Hotel Properties with her husband. They also own a Kauai, Hawaii, condominium valued at $1 million to $5 million. Together the properties generated $150,000 to $1.1 million in rental income in 2011.
Like many of the wealthiest lawmakers, much of Feinstein's fortune comes from her spouse. Her husband, Richard Blum, is president and CEO of the private equity firm Blum Capital Partners LP.
Feinstein reported that Blum holds more than a dozen assets valued at $1 million or more, including investment partnerships, limited liability corporations and a stake in OZ Fitness, a health club chain in Washington state.
Assets held independently by spouses do not need to be delineated beyond $1 million on the Senate disclosure forms, so Feinstein's true wealth could be far more than what appears on paper.

Eric Thayer/Reuters/File
Sen. Dianne Feinstein waves onstage while addressing the second session of the Democratic National Convention in Charlotte, N.C. in this September 2012 file photo. Feinstein's assets with her husband, Richard Blum, include valuable real estate investments and a stake in a Washington state health club chain.