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About Mount Sinai, New York

Mount Sinai is a hamlet and census-designated place (CDP) in Suffolk County, New York, USA. The population was 8,734 at the 2000 census.

News from Mount Sinai

Mount Sinai Facts

  • Population Total: 8734
  • Square Miles: 5.3
  • Area Code: 631
  • Elevation: 33
  • Postal Codes: 11766
  • Timezone: North American Eastern