For last eight years election turnout on general elections in Massachusetts varies from 49.3% in 2006 congressional elections as the lowest to 67.3% in 2008 presidential elections as the highest.
Early voting rates vary between 3.4% in 2006 and 6.5% in 2008. Data on early voting in 2010 congressional elections is unavailable.

Based on data provided by The United States Elections Project – http://elections.gmu.edu/