The Commonwealth of Massachusetts Enrollment Breakdown as of 10/15/2008

The Commonwealth of Massachusetts Enrollment Breakdown as of 10/15/2008, originally uploaded by stevegarfield. CC BY-NC-SA

Registered Voters 4,220,488
Democrat 1,559,464 36.95%
Republican 490,259 11.62%
Unenrolled 2,141,878 50.75%
Green Rainbow 6,728 .16%
Working Families 5,534 .13%
Political Designations 16,625 .39%

Source [ PDF ]