The 1966 Massachusetts gubernatorial election was held on November 8, 1966. Governor John A. Volpe was reelected to a four-year term. He defeated former Attorney General Edward J. McCormack Jr. in the general election. This was the first election held since the governor's term of office was extended from two to four years.

Republican primary Candidates John Volpe, incumbent governor

Results Governor Volpe was unopposed for renomination.

Democratic primary Candidates Edward J. McCormack Jr., former Massachusetts attorney general Kenneth O'Donnell, former aide to President Kennedy

Results

General election

Results Volpe defeated McCormack by over a half million votes. He won the majority of the votes in every Massachusetts county. This was the last general election in which the governor and lieutenant governor were elected separately.

Results by county County John VolpeRepublican Edward McCormackDemocratic All others Margin Total votes # % # % # % # % Barnstable 25,471 75.3% 8,232 24.3% 127 0.4% 17,239 41.0% 33,830 Berkshire 33,098 64.4% 18,024 35.1% 284 0.5% 15,074 29.3% 51,406 Bristol 87,629 54.6% 72,140 45.0% 715 0.4% 15,489 9.6% 160,484 Dukes 1,846 71.4% 726 28.1% 13 0.5% 1,120 43.3% 2,585 Essex 156,070 62.5% 92,278 36.9% 1,390 0.6% 63,792 25.6% 249,738 Franklin 14,600 69.9% 6,195 29.7% 83 0.4% 8,405 40.2% 20,878 Hampden 89,263 62.2% 53,042 37.0% 1,167 0.8% 36,221 25.2% 143,472 Hampshire 23,766 61.7% 14,570 37.8% 162 0.4% 9,196 23.9% 34,498 Middlesex 332,958 65.2% 175,185 34.3% 2,596 0.5% 157,773 30.9% 510,739 Nantucket 942 71.4% 370 28.0% 8 0.6% 572 43.4% 1,320 Norfolk 157,988 67.4% 75,106 32.1% 1,193 0.5% 82,882 35.3% 234,287 Plymouth 75,501 69.3% 33,082 30.3% 419 0.4% 42,419 39.0% 109,002 Suffolk 131,375 52.6% 116,304 46.6% 2,078 0.8% 15,071 6.0% 249,757 Worcester 146,851 62.4% 87,466 37.2% 864 0.3% 59,385 25.2% 235,181Totals1,277,35862.6%752,72036.9%11,0990.5%524,63825.7%2,041,177

Counties that flipped from Democratic to Republican Bristol Essex Hampden Suffolk Worcester

See also 1966 Massachusetts general election 1965–1966 Massachusetts legislature

References