The Village of Brookville is located within the town of Oyster Bay in Nassau Country, New York.  As of the 2010 United States Census, the village population was 3,465.

Half of New York Institute of Technology’s 1,050 acres Old Westbury campus is located in the Village of Brookville. The village is the home of LIU Post, the largest campus of the private Long Island University system. The Long Island Lutheran Middle and High School is also located in the village. Brookville is served by the Jericho Union Free School District along with most of Muttontown and Jericho.
As of the census of 2000, there were 2,126 people, 631 households, and 569 families residing in the village.
The population is 76% White, 8% Black, 10% Asian and 0% Native American or Native Hawaiian. 1% identify as another race or ethnicity, or two or more races. 6% of residents are of Hispanic or Latino origin. The median income is $236,786 and the median home value is $1,000,000. For more on schools, real estate, business and health care in Brookville, see each of the tabs above.
Brookville, New York, gets 47 inches of rain per year. The US average is 39. Snowfall is 21 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 116.
On average, there are 169 sunny days per year in Brookville, New York. The July high is around 83 degrees. The January low is 26.
New York millionaires established estates here in the early 1900s and the federal government built a Nike missle site here in 1958.
Well-known residents have included: Marjorie Merriweather Post, heiress and Colleges and universities: Long Island University – C.W. Post campus