When many Americans think of Capitol Hill, the image of well-heeled politicians often comes to mind.

Sure, you don't have to be a multimillionaire to win a congressional race, but having an abundance of wealth doesn't hurt. That's especially the case for candidates who can self-fund, which allows parties to divert critical dollars to nominees in competitive races.

While every lawmaker isn't rich — even as some have leveraged their profiles to attain lucrative book deals — there are many members who have net worths of at least $1 million.

And then there are the lawmakers who are considerably wealthy, even by congressional standards.