Springdale is an unincorporated community in Andover Township, in Sussex County, in the U.S. state of New Jersey.
It is located on U.S. Route 206, approximately south of Newton. Newton Airport is located there.
The Pequest River flows through Springdale.
In 1872, it was noted that Springdale had a mill, eight or ten dwellings, and a school that was used for religious services on the sabbath "by ministers of several denominations alternately".