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ZIP code 11791

Syosset, NY · Nassau County

About ZIP code 11791

  • ZIP code 11791 is in Syosset, Nassau County, New York.
  • About 25,520 people live in it, which is 787.4 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 40.828, -73.503.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Syosset, NY

ZIP code 11791 is the post office name for Syosset, NY. 18,433 people live in Syosset. Typical household income is $187,273. A typical home costs $874,300.

  • Stronger than most towns on: Long, healthy lives, Home internet and working from home and Dining and entertainment.
  • Weaker than most towns on: Cost of living, Short commute and Housing affordability.

See all figures for Syosset

Nearby ZIP codes

ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.