Melville, NY Profile: Facts & Data


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Melville, New York - Basic Facts

The Melville Census Designated Place had a population of 19,284 as of July 1, 2020.

The primary coordinate point for Melville is located at latitude 40.7934 and longitude -73.4151 in Suffolk County. The formal boundaries for the Melville Census Designated Place encompass a land area of 12.09 sq. miles and a water area of 0 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 128 feet.

The Melville Census Designated Place (GNIS ID: 2389471) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Melville Census Designated Place is located within Town of Huntington, a minor civil division (MCD) of Suffolk County.

Alternate Unofficial Names for Melville: Sun-quams, Sweet Hollow.


Melville, NY Data & Demographics (As of July 1, 2020)


Total Population 19,284 (100%)
Population in Households 18,797 (97.5%)
Population in Families 16,432 (85.2%)
Population in Group Quarters1 487 ( 2.5%)
Population Density 1,595
Diversity Index2 40


Median Household Income $141,915
Average Household Income $184,833
% of Income for Mortgage4 22%
Per Capita Income $67,877
Wealth Index5 288


Total HU (Housing Units) 7,435 (100%)
Owner Occupied HU 6,002 (80.7%)
Renter Occupied HU 1,075 (14.5%)
Vacant Housing Units 358 ( 4.8%)
Median Home Value $731,606
Average Home Value $795,643
Housing Affordability Index3 94


Total Households 7,077
Average Household Size 2.66
Family Households 5,252
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.15% -0.17%
Households 0.24% -0.15%
Families 0.13% -0.22%
Median Household Income   0.37%
Per Capita Income   1.03%
Owner Occupied HU   -0.17%


Melville, NY - Peer Comparisons by Rank and Percentile

The table below compares Melville to the other 1,195 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2020 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 # 88 93rd
Population Density # 515 57th
Median Household Income # 105 91st
Housing Affordability Index # 203 17th
Per Capita Income # 116 90th
Diversity Index # 357 70th

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

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