Long Island, NY

Long Island, NY: the places inside it, the companies based here, and where this atlas has research on it.

region · North America · page prepared 2026-11-07

Visiting rather than moving? The free guidebook for Long Island →

A

Long Island at a glance

Rolled up from the 13 regions inside Long Island on this site.

Population—
registry estimate
Places inside11
8 with a full /local page
Businesses on file10,564
business register, all places inside
Companies headquartered19
in the company directory
Who represents them2
places with a /politics page
Property & employers2 · 0
/property and /employers records
B

Largest places in Long Island

By registry population; places with a full /local page are marked.

  1. 1.Oyster Bay, NY full301,332
  2. 2.Southampton, NY full69,036
  3. 3.Riverhead, NY full35,902
  4. 4.Bay Shore, NY full29,244
  5. 5.East Hampton, NY full28,385
  6. 6.Hampton Bays, NY full15,228
  7. 7.Montauk, NY full4,318
  8. 8.Westhampton, NY3,621
  9. 9.Cutchogue, NY3,437
  10. 10.Sag Harbor, NY full2,772
  11. 11.Quogue, NY1,662
R

Inside Long Island

6 regions have Long Island as their parent.

C

Companies based in Long Island

15 in the Research Upon company directory list their headquarters here, and 19 across Long Island and the places inside it — search them all below.

CompanyIndustryFounded
ABI ResearchBusiness1990
DiditMedia
Dynamic Pricing PartnersRetail
EAU DE LUXERetail
Fatty SundaysFood2012
Frequency ElectronicsTech1961
Global IndustrialLogistics1949
Gwynnie BeeFashion2016
HHAeXchangeHealth
Island PowersportsAutomotive
KravetLiving1918
OptimumTech
Renaissance TechnologiesFinance
Schweiger Dermatology GroupHealth
SystemaxLogistics

areaAbout this page: figures for the whole of Long Island, NY are rolled up from every region inside it; each place inside has a page of its own, and the companies headquartered here are listed above.