Home > NY > Suffolk County > Selden > Zip 11784

Zip Code 11784 — Selden, NY

ZIP Code 11784 is associated with Selden, NY, in Suffolk County. The listed population estimate is 26,244; estimated density is 1,849.3 people per square mile. Among records with population estimates, it ranks #21 of 106 in Suffolk County and #252 of 1,778 in NY.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.868550, -73.042200)

Data MetricLocal Statistic
Postal / Zip Code11784
Primary CitySelden
State / ProvinceNY
CountySuffolk
Total Population26,244
Population Density1,849.3 people/sq mi
TimezoneAmerica/New_York

How 11784 Compares

MetricZIP 11784Suffolk County recordsNY records
Population estimate26,2441,476,044 (sum)19,771,902 (sum)
Population Density1,849.3 /sq mi----
County population rank#21 of 106----
State population rank#252 of 1,778----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in NY

ZIP CodeCityDistancePopulation estimate
ZIP 11720Centereach2.1 mi29,292
ZIP 11738Farmingville2.1 mi18,877
ZIP 11727Coram2.2 mi28,495
ZIP 11776Port Jefferson Station3.1 mi22,808
ZIP 11755Lake Grove4.0 mi12,144

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →