With 757 votes, Baker beat John Palazzolo with 183 votes and incumbent Ray Albanese with 234 votes in an election in which 1,174 residents cast ballots.
The new commissioner will face the challenge of dealing with the district's deteriorating infrastructure, and one that a state audit recently found has an operating deficit of $195,000.
The Eastchester Fire District employs 72 paid firefighters and covers an area of nearly 5 square miles, serving 34,000 residents, including the villages of Bronxville and Tuckahoe.
Click here to follow Daily Voice Bronxville and receive free news updates.