Reference: Lists and Rankings: Roll Call’s Wealth of Congress Index 2015 (Richest and Poorest Members)

Includes video and access to lists back t0 2003.
From the Introduction:

Every year since 1990, Roll Call has raked through congressional financial disclosure forms to create our Wealth of Congress Index. In the course of analyzing the data of the 50 richest members of Congress, the 10 “poorest” and all the others elected to represent Americans in the Capitol, we discovered scores of interesting things that illustrate how they made their money, how they keep it and how some use the illusion of transparency to their advantage.
[Clip]
This year’s Wealth of Congress Index, derived from forms covering the 2014 calendar year, shows it took a minimum net worth of $7.28 million to crack the exclusive 50 richest club. The full list, with breakdowns of members’ assets and liabilities, is below.

Direct to 2015 Materials
Direct to Previous Lists

Filed under: Data Files, News