About 11787 - Smithtown, New York
The ZIP code 11787 of Smithtown falls within New York, the United States - a mid-sized area by population. It sits within Smithtown County County.
Smithtown has a reported population of 12,766. That's below the New York average of about 22,904 people per ZIP code.
Median household income is about $64,800 (below the New York average).
Nearby communities in New York include West Hurley, Central Valley, Niagara Falls.