| Official Name: | Plainedge, New York |
| Settlement Type: | Hamlet and census-designated place |
| Pushpin Map: | USA New York Long Island#New York#USA |
| Pushpin Map Caption: | Location on Long Island##Location within the state of New York##Location within the contiguous United States |
| Mapsize: | 260px |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Area Footnotes: | [1] |
| Area Total Km2: | 3.64 |
| Area Land Km2: | 3.64 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 1.40 |
| Area Land Sq Mi: | 1.40 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 9517 |
| Population Density Km2: | 2617.26 |
| Population Density Sq Mi: | 6778.49 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 20 |
| Elevation Ft: | 66 |
| Coordinates: | 40.7231°N -73.4786°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 11714,11735, 11756, 11758, 11783 |
| Area Code: | 516 |
| Blank Name: | FIPS code |
| Blank Info: | 36-58409 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0960659 |
| Unit Pref: | Imperial |
| Subdivision Name3: | Oyster Bay |
| Subdivision Type3: | Town |
| Pushpin Label: | Plainedge, New York |
Plainedge is a hamlet and census-designated place (CDP) in the Town of Oyster Bay in Nassau County, on Long Island, in New York, United States. The population was 8,817 at the 2010 census.
The area was once known as Turkeyville.[2] [3]
According to the United States Census Bureau, the CDP has a total area of 1.4sqmi, all land.[4]
Residents are served by the Bethpage (11714), Massapequa (11758), and Seaford (11783) Post Offices, with a small number of residents being served by the Farmingdale (11735) and Levittown (11756) Post Offices.
As of the 2010 census [5] the population of the CDP was 92% White, 86.6% Non-Hispanic White 0.8% African American, 0.2% Native American, 4.5% Asian, 0.0% Pacific Islander, 1.5% from other races, and 1% from two or more races. Hispanic or Latino of any race were 7.8% of the population.
As of the census[6] of 2000, there were 9,195 people, 3,028 households, and 2,458 families residing in the CDP. The population density was 6425.8sp=usNaNsp=us. There were 3,052 housing units at an average density of 2132.9sp=usNaNsp=us. The racial makeup of the CDP was 94.41% White, 0.54% African American, 0.10% Native American, 2.45% Asian, 0.03% Pacific Islander, 1.36% from other races, and 1.11% from two or more races. Hispanic or Latino of any race were 5.14% of the population.
There were 3,028 households, out of which 35.8% had children under the age of 18 living with them, 68.9% were married couples living together, 9.6% had a female householder with no husband present, and 18.8% were non-families. 15.5% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older. The average household size was 3.03 and the average family size was 3.36.
In the CDP, the population was spread out, with 24.7% under the age of 18, 6.3% from 18 to 24, 30.8% from 25 to 44, 22.4% from 45 to 64, and 15.7% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 91.9 males. For every 100 females age 18 and over, there were 89.9 males.
The median income for a household in the CDP was $67,560, and the median income for a family was $75,588. Males had a median income of $55,091 versus $35,960 for females. The per capita income for the CDP was $25,752. About 1.7% of families and 2.4% of the population were below the poverty line, including 2.1% of those under age 18 and 4.8% of those age 65 or over.
The hamlet is primarily served by the Plainedge Union Free School District.[7] It currently consists of five schools: Eastplain, John H. West Memorial School, and Charles E. Schwarting elementary schools; Plainedge Middle School; and Plainedge High School.
The eastern portions of the hamlet are within the boundaries of the Farmingdale Union Free School District.
