Metropark is a train station in Iselin, New Jersey. It is served by Amtrak and NJ Transit trains on the Northeast Corridor. It provides commuter rail access for Iselin and several surrounding towns in Middlesex County. The station was built in 1971 by the New Jersey Department of Transportation (NJDOT) and the United States Department of Transportation. Its purpose was to provide a suburban park-and-ride stop for the new high-speed rail Metroliners.