Cooley will be running for the seat vacated by the late Jerry Wasserman, who died in February at the age of 65 after battling cancer. Then chairman of the board, Wasserman had served as a selectman for over a decade.
The special election will take place June 25, the same day as the special Senate election pitting Democrat Congressman Edward Markey against Republican Gabriel Gomez.
The last day to return papers to run for the selectman's seat was Tuesday at 5 p.m., and Cooley was the only one to do so, according to the town clerk's office. Unless another candidate wages a successful write-in campaign for the seat, Cooley will win de-facto.
Voters have until June 5 to register for the election, and the clerk's office will be open from 9 a.m. to 8 p.m. that day to accommodate anyone who wishes to do so. Locals can also apply for absentee ballots up until noon the day before the election.
Jaclyn Reiss can be reached at firstname.lastname@example.org