#8: California's 12th District
Rep. Nancy Pelosi: Democratic minority leader
Per capita income: $48,523
House Democratic Leader Nancy Pelosi's San Francisco district ranks as the country's eigth wealthiest, with a per capita income of $48,523. Pelosi has served her constituents as a member of the Democratic Party's leadership since 2002, and as Speaker of the House from 2007 to 2011.