Greenlawn, NY 11740 ZIP Code Profile

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Greenlawn, NY

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ZIP Code 11740: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Greenlawn, NY 11740

  • ZIP Code Type: STANDARD
  • County: Suffolk County
  • Centroid: Latitude 40.86, Longitude -73.363
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 330
  • PO Box Addresses: 206
  • Residential Addresses: 3,278
    • Multi-Family Addresses: 0
    • Single Family Addresses: 3,278

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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11740 ZIP Code Map

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Greenlawn, NY 11740 Data & Demographics (As of July 1, 2017)


Total Population 9,488
Daytime Population: Workers 4,310
Daytime Population: Residents 5,324
Total Daytime Population (TDP) 9,634
Ratio TDP/Total Population1 1.02
Population in Households 9,226
Population in Familes 7,886
Population in Group Qrtrs 262
Population Density2 2,879
Diversity Index3 43


Median Household Income $106,571
Average Household Income $148,521
Per Capita Income $52,672


Total Housing Units 3,399 (100%)
Owner Occupied HU 2,485 (73.1%)
Renter Occupied HU 824 (24.2%)
Vacant Housing Units 90 ( 2.6%)
Median Home Value $539,642
Average Home Value $596,761


Total Households 3,309
Average Household Size 2.79
Family Households 2,319
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.23% 0.29%
Households 0.2% 0.26%
Families 0.05% 0.18%
Median Household Income   1.77%
Per Capita Income   2.17%

Greenlawn, NY 11740 - Peer Comparisons by Rank and Percentile

The table below compares 11740 to the other 1,745 ZIP Codes in New York by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 536 69th
Population Density # 379 78th
Diversity Index # 479 72nd
Median Household Income # 147 92nd
Per Capita Income # 163 91st

Additional comparisons and rankings can be made with a VERY EASY TO USE New York Census Data Comparison Tool.

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