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Holtsville, New York

Holtsville, New York
Hamlet and census-designated place
U.S. Census map
U.S. Census map
Holtsville is located in New York
Holtsville
Holtsville
Location within the state of New York
Coordinates: 40°48′48″N 73°2′50″W / 40.81333°N 73.04722°W / 40.81333; -73.04722Coordinates: 40°48′48″N 73°2′50″W / 40.81333°N 73.04722°W / 40.81333; -73.04722
Country United States
State New York
County Suffolk
Area
 • Total 7.1 sq mi (18.4 km2)
 • Land 7.1 sq mi (18.4 km2)
 • Water 0.0 sq mi (0.0 km2)
Elevation 105 ft (32 m)
Population (2010)
 • Total 19,714
 • Density 2,800/sq mi (1,100/km2)
Time zone Eastern (EST) (UTC-5)
 • Summer (DST) EDT (UTC-4)
ZIP codes 00501, 00544, 11742
Area code(s) 631
FIPS code 36-35254
GNIS feature ID 0953030

Holtsville is a hamlet and census-designated place (CDP) in Suffolk County, New York, United States. The population was 19,714 at the 2010 census.

Holtsville is mainly in the Town of Brookhaven, while the southwest portion is in the Town of Islip. An IRS Processing Center is located in Holtsville.

The hamlet known today as Holtsville included only a few farmhouses in the late 18th century. In 1843, the Long Island Rail Road opened its Waverly Station. Maps from that period label the area as Waverly, and a stagecoach line ran north-south along present day Waverly Avenue. As another post office named Waverly already existed in Upstate New York, the name of the hamlet was changed to Holtsville in 1860, in honor of U.S. Postmaster General Joseph Holt. As of 1874, Holtsville consisted of 15 houses, a school, and a general store. The train station retained the name "Waverly" for some time, but was eventually also changed to Holtsville, probably in the 1890s, after farmers complained about their shipments going upstate by mistake. In 1916, the Suffolk County Tuberculosis Sanatorium opened on land that was considered Holtsville at the time, but is now part of the hamlet of Selden. The site later became the location of the main campus of Suffolk County Community College.

The Internal Revenue Service opened a large processing center on a 67-acre (270,000 m2) site in the hamlet in 1972.


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