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zipcodes.pro — CITY/NY/ISLANDIA

Islandia ZIP code, New York

The ZIP code for Islandia, NY is 11749, and its area codes are 631, 516 and 934.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
3,600
Area codes
631, 516, 934

NANPA lists no telephone rate centre for Islandia itself, so these are the area codes of the nearest one, Central Islip (2.1 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Islandia uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Islandia in numbers

About 3,600 people live in Islandia, in 1,217 households. The median household income is $116,313 a year, 35% above the New York median of $85,974 (US: $80,734). The median owner-occupied home is valued at $477,400 (13% above the New York median), and median gross rent is $2,019 a month. The median age is 43.3; 32.5% of adults 25 and over hold a bachelor's degree or higher (40.2% across New York); the average commute takes 30 minutes.

Population3,600Islandia3,600
Households1,217Islandia1,217
Median age43.3Islandia43.3New York39.8US 38.9
Median household income$116,313Islandia$116,313New York$85,974US $80,734
Median home value$477,400Islandia$477,400New York$423,800US $332,700
Median gross rent$2,019Islandia$2,019New York$1,621US $1,413
Bachelor's degree or higher32.5%Islandia32.5%New York40.2%US 35.7%
Mean commute30.3 minIslandia30.3 minNew York32.6 minUS 26.4 min
Population density1,626 / sq miIslandia1,626 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Islandia village. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Islandia

ZIP codes with the USPS city name Islandia
ZIP City Type Population Median income Median home
11749 Islandia , NY Standard 3,600 $116,313 $477,400

Other ZIP codes overlapping Islandia

These ZIP codes cover part of Islandia but are addressed as somewhere else.

ZIP codes overlapping Islandia
ZIP City Type Population Median income Median home
11788 Hauppauge , NY Standard 17,374 $149,726 $653,900

Map of Islandia ZIP codes

11749

The ZIP codes of Islandia, NY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Islandia

The nearest larger towns are Central Islip (38,373 people, 2.0 mi), Hauppauge (20,793 people, 2.3 mi) and Ronkonkoma (18,709 people, 2.4 mi).

Towns near Islandia
TownPopulationDistance
Central Islip 38,373 2.0 mi
Hauppauge 20,793 2.3 mi
Ronkonkoma 18,709 2.4 mi
Bohemia 9,181 2.8 mi
Nesconset 13,833 2.9 mi
Lake Ronkonkoma 18,221 3.4 mi
North Great River 3,909 3.5 mi
Islip Terrace 5,168 4.0 mi
Smithtown 24,375 4.2 mi
Lake Grove 11,061 4.5 mi
Brentwood 152,614 4.5 mi
St. James 13,244 4.9 mi
Oakdale 7,115 5.1 mi
Holbrook 26,449 5.4 mi

More nearby: every ZIP code in Suffolk County · New York ZIP codes

Cite this page

zipcodes.pro. “Islandia, NY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ny/islandia

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