Massachusetts Senate's 1st Bristol and Plymouth district

Massachusetts Senate's 1st Bristol and Plymouth district in the United States is one of 40 legislative districts of the Massachusetts Senate. It covers 26.9% of Bristol County and 3.2% of Plymouth County population. Democrat Michael Rodrigues of Westport has represented the district since 2011.

Locales represented
The district includes the following localities:
 * Fall River
 * Freetown
 * Lakeville
 * Rochester
 * Somerset
 * Swansea
 * Westport

The current district geographic boundary overlaps with those of the Massachusetts House of Representatives' 4th Bristol, 5th Bristol, 6th Bristol, 7th Bristol, 8th Bristol, 10th Bristol, and 12th Bristol districts.