Seaford CDP, New York demographics
Population: 15,636
Median age: 41.8
Median household income: 144,167
Seaford is a CDP in Nassau County, New York, United States.
Demographics, population, home values, social and economic characteristics of Seaford CDP, NY.
Population
| 2021 | 15,636 |
| 2020 | 15,153 |
| 2019 | 15,040 |
| 2018 | 15,113 |
| 2017 | 15,405 |
| 2016 | 15,891 |
| 2015 | 15,656 |
| 2014 | 15,405 |
| 2013 | 15,527 |
| 2012 | 15,251 |
| 2011 | 15,065 |
| 2010 | 15,463 |
| 2009 | 15,473 |
Census data for Seaford CDP, New York
Demographic and housing estimates in Seaford CDP, New York
| Total population | 15,636 |
| Male | 7,948 |
| Female | 7,688 |
| Total population | 15,636 |
| Under 5 years | 686 |
| 5 to 9 years | 930 |
| 10 to 14 years | 1,151 |
| 15 to 19 years | 1,288 |
| 20 to 24 years | 1,128 |
| 25 to 34 years | 1,520 |
| 35 to 44 years | 1,715 |
| 45 to 54 years | 2,430 |
| 55 to 59 years | 1,260 |
| 60 to 64 years | 919 |
| 65 to 74 years | 1,427 |
| 75 to 84 years | 750 |
| 85 years and over | 432 |
| Median age (years) | 41.8 |
| Under 18 years | 3,675 |
| 16 years and over | 12,545 |
| 18 years and over | 11,961 |
| 21 years and over | 11,294 |
| 62 years and over | 3,052 |
| 65 years and over | 2,609 |
| Total population | 15,636 |
| One race | 15,411 |
| White | 14,570 |
| Black or African American | 140 |
| American Indian and Alaska Native | 32 |
| Asian | 586 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 83 |
| Two or more races | 225 |
| Citizen, VOTING AGE 18 and over population | 11,932 |
| Male Citizen, VOTING AGE 18 and over population | 5,842 |
| Female Citizen, VOTING AGE 18 and over population | 6,090 |
Social characteristics in Seaford CDP, New York
| Total households | 5,136 |
| Family households (families) | 3,591 |
| Married-couple family | 201 |
| Male householder, no wife present, family | 478 |
| Female householder, no husband present, family | 308 |
| Nonfamily households | 866 |
| Average household size | 1,730 |
| Average family size | 3.03 |
Economic characteristics in Seaford CDP, New York
| Total households | 5,136 |
| Less than $10,000 | 50 |
| $10,000 to $14,999 | 31 |
| $15,000 to $24,999 | 119 |
| $25,000 to $34,999 | 105 |
| $35,000 to $49,999 | 130 |
| $50,000 to $74,999 | 409 |
| $75,000 to $99,999 | 593 |
| $100,000 to $149,999 | 1,227 |
| $150,000 to $199,999 | 846 |
| $200,000 or more | 1,626 |
| Median household income (dollars) | 144,167 |
Housing characteristics in Seaford CDP, New York
| Total housing units | 5,294 |
| Occupied housing units | 5,136 |
| Vacant housing units | 158 |
| Total housing units | 5,294 |
| 1-unit, detached | 4,929 |
| 1-unit, attached | 54 |
| 2 units | 102 |
| 3 or 4 units | 7 |
| 5 to 9 units | 42 |
| 10 to 19 units | 72 |
| 20 or more units | 63 |
| Mobile home | 25 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 5,294 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 167 |
| Built 2000 to 2009 | 89 |
| Built 1990 to 1999 | 111 |
| Built 1980 to 1989 | 184 |
| Built 1970 to 1979 | 523 |
| Built 1960 to 1969 | 684 |
| Built 1950 to 1959 | 2,616 |
| Built 1940 to 1949 | 257 |
| Built 1939 or earlier | 663 |
| Total housing units | 5,294 |
| 1 room | 0 |
| 2 rooms | 53 |
| 3 rooms | 71 |
| 4 rooms | 287 |
| 5 rooms | 452 |
| 6 rooms | 1,163 |
| 7 rooms | 1,227 |
| 8 rooms | 1,211 |
| 9 rooms or more | 830 |
| Median rooms | 7.0 |
| Total housing units | 5,294 |
| No bedroom | 0 |
| 1 bedroom | 160 |
| 2 bedrooms | 334 |
| 3 bedrooms | 2,463 |
| 4 bedrooms | 1,734 |
| 5 or more bedrooms | 603 |
| Occupied housing units | 5,136 |
| Owner-occupied | 4,865 |
| Renter-occupied | 271 |
| Average household size of owner-occupied unit | 3.06 |
| Average household size of renter-occupied unit | 2.56 |
| Occupied housing units | 5,136 |
| Moved in 2017 or later | 278 |
| Moved in 2015 to 2016 | 703 |
| Moved in 2010 to 2014 | 571 |
| Moved in 2000 to 2009 | 1,524 |
| Moved in 1990 to 1999 | 683 |
| Moved in 1989 and earlier | 1,377 |
| Owner-occupied units | 4,865 |
| Less than $50,000 | 3 |
| $50,000 to $99,999 | 47 |
| $100,000 to $149,999 | 37 |
| $150,000 to $199,999 | 30 |
| $200,000 to $299,999 | 54 |
| $300,000 to $499,999 | 1,862 |
| $500,000 to $999,999 | 2,740 |
| $1,000,000 or more | 92 |
| Median (dollars) | 538,300 |
| Owner-occupied units | 4,865 |
| Housing units with a mortgage | 3,273 |
| Housing units without a mortgage | 1,592 |
| Occupied units paying rent | 260 |
| Less than $500 | 0 |
| $500 to $999 | 0 |
| $1,000 to $1,499 | 27 |
| $1,500 to $1,999 | 29 |
| $2,000 to $2,499 | 126 |
| $2,500 to $2,999 | 40 |
| $3,000 or more | 38 |
| Median (dollars) | 2,294 |
| No rent paid | 11 |
Links