Home > NY > Suffolk County > East Northport > Zip 11731

Zip Code 11731 — East Northport, NY

ZIP Code 11731 is associated with East Northport, NY, in Suffolk County. The listed population estimate is 29,999; estimated density is 1,392.0 people per square mile. Among records with population estimates, it ranks #12 of 106 in Suffolk County and #210 of 1,778 in NY.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.862620, -73.317030)

Data MetricLocal Statistic
Postal / Zip Code11731
Primary CityEast Northport
State / ProvinceNY
CountySuffolk
Total Population29,999
Population Density1,392.0 people/sq mi
TimezoneAmerica/New_York

How 11731 Compares

MetricZIP 11731Suffolk County recordsNY records
Population estimate29,9991,476,044 (sum)19,771,902 (sum)
Population Density1,392.0 /sq mi----
County population rank#12 of 106----
State population rank#210 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 11740Greenlawn2.3 mi10,127
ZIP 11725Commack2.4 mi29,073
ZIP 11768Northport3.3 mi22,030
ZIP 11721Centerport3.5 mi6,426
ZIP 11754Kings Park4.0 mi17,565

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 →