East Patchogue is a census-designated place (CDP) in the Suffolk County town of Brookhaven, New York, United States. The population was 22,469 at the 2010 census. The CDP is a proximate representation of the East Patchogue hamlet used for statistical purposes of the Census Bureau. East Patchogue is also the name given by the United States Postal Service for ZIP code 11772, which serves the community.
The former East Patchogue post office was located at 1415 Montauk Highway, about five blocks east of the census map border.