Medford is a hamlet and census-designated place (CDP) in the Town of Brookhaven in Suffolk County, on Long Island, in New York, United States. The population was 24,142 at the 2010 census.

The Long Island Rail Road time-honored the Medford station in 1843 in a flat wilderness in the Long Island Central Pine Barrens. The station joined to the Patchogue Stage Road amongst Patchogue and Port Jefferson, and a declare office was established.

In 1907 the LIRR customary the Medford Prosperity Farm (officially called Experimental Station #2) on 80 acres (320,000 m) to measure that crops could be raised in the Pine Barrens. Theodore Roosevelt visited the station in August 1910. As the car drove across a trail with Medford and Wading River, it got grounded in the mud and Roosevelt was said to take a “flying leap” to get out.

By the mid-to-late-20th century, developers were building new neighborhoods within Medford. Eagle Estates was built along Horse Block Road east of NY 112 in 1963, although it was planned as far urge on as the 1930s. The improvement included a Blue Jay Market shopping center on Horseblock Road west of Eagle Avenue, and a teenage years baseball and energetic field east of Sipp Avenue with Wave and Race avenues. The Long Island Expressway was built through Medford in 1970, with interchanges at New York State Route 112 and Horseblock Road, the latter of which is close to an older interchange past Horseblock Road and Long Island Avenue, and was not completed until 1999. The Pines was received in the 1970s east of Buffalo Avenue, south of Jamaica Avenue, north of Woodside Avenue and far and wide west of Patchogue-Yaphank Road.