Holyoke Mayor Alex Morse plans to resign his post on March 26 to start his new job as Provincetown town manager on April 5.
"Today, buildings that were once vacant are home to restaurants, housing, and artist spaces. Our population is growing again, and so is our tax base," the 32-year-old mayor wrote in his resignation letter, reflecting on his decade in office.
"We've empowered local entrepreneurs to create their own businesses. We've improved educational outcomes for our students and we've made the city safer than it's been at any time in a generation."
Morse wrote that Council President Todd McGee will become acting mayor upon his departure.
This year has been marked so far by mayoral transitions -- Kendrys Vasquez is the new Lawrence mayor after Dan Rivera left City Hall to become head of MassDevelopment, and Kim Janey is poised to become Boston's acting mayor after the U.S. Senate holds its confirmation vote on labor secretary nominee Martin Walsh.
Mayors in several cities holding elections this November have also announced they will not seek reelection, including Joe Curtatone of Somerville, Donna Holaday of Newburyport, David Narkewicz of Northampton, and Tom Bernard of North Adams.
Lynn Mayor Tom McGee is the latest to add his name to that list, announcing Monday that he will not run again after four years in office and saying he is "committed to serving out my term with the same honesty, integrity, and respect I've shown throughout my public service."