Sayre is a borough in Bradford County, Pennsylvania, United States. It is part of Northeastern Pennsylvania. It is the principal city in the Sayre, PA Micropolitan Statistical Area. It lies 18 miles southeast of Elmira, New York, and 30 miles southwest of Binghamton. It is currently the largest city in Bradford County. In the past, various iron products were made there. In 1900, 5,243 people lived there; in 1910, 6,426 people lived there, and in 1940, 7,569 persons made their homes in Sayre.