Gladstone is an unincorporated community within Peapack-Gladstone in Somerset County, New Jersey, United States. The area is served as United States Postal Service ZIP Code 07934.
As of the 2000 United States Census, the population for ZIP Code Tabulation Area 07934 was 1,482.
Gladstone is a New Jersey Transit station that is the western terminus of the Gladstone Branch of the Morris and Essex line. Out of 23 inbound and 26 outbound daily weekday trains, 2 inbound and 2 outbound trains (about 8%) use the Kearny Connection to Secaucus Junction and New York Penn Station in Midtown Manhattan; the rest go to Hoboken Terminal. Passengers can transfer at Newark Broad Street or Summit to reach the other destination if necessary.