This is a very interesting website that shows political donations (looks like only dems and 'cans) by donor's name and address for any given zip code. It combines google maps and Fundrace info. My neighborhood didn't donate to either but our zipcode was over 80% donations to dems.
Following the Dollars:
Map Political Campaign Contributions in Your Area
Enter a zip code anywhere in the United States.
Be sure to click on the Red and Blue markers in the generated map