Zip Code 11740 — Greenlawn, NY
11740 is a ZIP Code associated with Greenlawn, NY, located within Suffolk. 11740 ranks #52 out of 108 ZIP codes in Suffolk County by population (and #518 out of 1,826 in NY). The area supports an estimated population of 10,127 residents across Data Pending housing units, with a population density of 1,067.5 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (40.865360, -73.361180)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 11740 |
| Primary City | Greenlawn |
| State / Province | NY |
| County | Suffolk |
| Total Population | 10,127 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1,067.5 people/sq mi |
| Timezone | America/New_York |
How 11740 Compares
| Metric | ZIP 11740 | Suffolk County | NY State Average |
|---|
| Population | 10,127 | 1,476,044 (Total) | 19,771,902 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 1,067.5 /sq mi | -- | -- |
| County Pop Rank | #52 of 108 | -- | -- |
Nearby ZIP Codes
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 →