Katherine Clark has been declared the winner, taking 66% of the vote (40,172 votes) to Frank Addivinola's 32% (19,319 votes). Overall electorate turnout was a measly 13%, with local lows of 8% in Revere and Waltham and a local high of 48%(!) in Winchester. Boston.com has a breakdown of results by town (http://boston.com/news/special/politics/2013/5th-us-house/mass-us-house-5th-results.html) for anyone who's curious.

Thanks to all who bothered to vote today!