You asked, we mapped. Today's release of data from RBI (the people who monitor almost all the listings for the DMV) gave us a perfect excuse to bust out a handy heat map that breaks things down zip code by zip code. After the jump you'll find DC's twenty-one most residential zip codes and the December 2011 housing activity for each one, separated by house type (i.e. detached, row house, condo). If you want to know even more about where you live check out the link to each zip code report (that will get you the nabe stats compared to last month, last year, etc.). If you see any problems or discrepancies, drop us a line on our tipline: dc@curbed.com. Onward.