The baseline congressional salary may be $174,000, but there are plenty of members of both the U.S. House and Senate who rake in far more each year.

Republicans dominate the list of Capitol Hill's wealthiest lawmakers, according to The Hill's recent ranking of the 50 richest members of Congress.  Thirty-one of the individuals on that list are members from the GOP, reports the publication, which reviewed 2011 financial disclosure forms to develop the rankings.

However, because lawmakers do not have to report exact figures for their assets and liabilities on those forms, instead proving those values in ranges, The Hill notes that some members of Congress may be far wealthier than its current lists indicates.

While Republicans may compose more than half of the list, seven of the top 10 richest lawmakers are all Senate Democrats.