Bloomingburg, previously Bloomingburgh, is a village in Sullivan County, New York, United States. The population was 353 at the 2000 census.
The Village of Bloomingburg is in the Town of Mamakating.
Bloomingburg's accepted incorporation date is 1833. It was the first county seat of Sullivan County, being located in the original county town of Mamakating. It prospered, first, as a center of commerce along the Newburgh-Cochecton Turnpike, then as a railway town serving vacationers in the mountains. Many guesthouses in the village were not rebuilt after the devastating fire of February 1922, and the village has been primarily an agricultural center ever since.