Brentwood is a station along the Main Line (Ronkonkoma Branch) of the Long Island Rail Road. It is officially located at Suffolk County Road 100 (Suffolk Avenue) and Brentwood Road in Brentwood, New York. However it has parking facilities and other amenities that are extended far beyond its given location. The actual station is located across the tracks from the dead end of Eighth Street near Leroy Avenue. The parking lot entrance is on Suffolk Avenue 1/2 mile east of Brentwood Road/Washington Avenue.
The first station, which was originally known as "Modern Times Station" was originally built in 1870, then burned down in April 1903 and replaced on November 10, 1903. Until 1987, Brentwood Station was located on First Avenue between 4th Street and Brentwood Road. It was moved as part of a major reconstruction project of the line in Ronkonkoma, Central Islip, Brentwood, Deer Park, and Wyandanch. The station was built in close proximity of the former Brentwood Station, which was converted into a restaurant shortly after it was abandoned. All grade crossings in the Brentwood area remain unchanged after the station was moved.
Prior to the construction of Brentwood Station, another station existed in Brentwood where the Sagtikos State Parkway now crosses over the Main Line of the Long Island Rail Road. This was known as Thompson's Station or Thompson's Siding, and served as a private home, a station, an Inn, and a general store. It was opened as a station on June 24, 1842, with the arrival of the railroad, and closed in December 1869, before Brentwood Station was built further east. The site was replaced with the former Pineaire (LIRR station) in 1915, until it was closed in 1986 and combined into the new Deer Park (LIRR station) west of Sagtikos State Parkway.
This station has two high-level side platforms each 12 cars long. The north platform, adjacent to Track 1, is generally used by westbound or New York City-bound trains. The south platform, adjacent to Track 2, is generally used by eastbound trains.
The Main Line has two tracks at this location.
 Suffolk County Transit Bus ConnectionsEdit
- S27: Babylon-Hauppauge.
- S41: Bay Shore-Northport VA Medical Center.
- S45: Bay Shore-Smithtown.
- 3A: Westfield South Shore-Hauppauge.
- 3C: Central Islip-Westfield South Shore.
- 3D: Brentwood-Stony Brook.