US Census Data
Population
21,707
+8.0%’19–’23
Median household income
$111,339
+16.2%’19–’23
Median home value
$435,700
+32.0%’19–’23

Located in Suffolk County, New York, Selden is a community with a population of 21,707. The median household income of $111,339 is below the Suffolk County median ($128,329).

Between 2019 and 2023, Selden's population grew 8.0% from 20,093 to 21,707, while its median home value rose 32.0% from $330,100 to $435,700.

The largest age group is 5 to 17, 14.9% of residents. White (non-Hispanic) residents are the largest group, 61.7% of the population.

Demographics

ACS 2019–2023
Population
21,707
Median age
39.0 yrs
Median household income
$111,339
Median home value
$435,700
Median gross rent
$2,282
Housing units
7,180
Homeownership rate
84.8%
Bachelor's degree or higher
28.5%
Unemployment rate
4.3%

Trends

ACS 5-year · 2019–2023
Population
20,09321,707
Median household income
$95,801$111,339
Median home value
$330,100$435,700
Median gross rent
$1,810$2,282
YearPopulationMedian household incomeMedian home valueMedian gross rent
201920,093$95,801$330,100$1,810
202021,338$93,262$342,500$1,843
202121,265$99,455$356,400$1,945
202221,759$115,406$407,300$2,279
202321,707$111,339$435,700$2,282

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 51,4146.5%
5 to 173,24214.9%
18 to 241,9649.0%
25 to 343,06614.1%
35 to 442,63612.1%
45 to 543,01413.9%
55 to 643,02713.9%
65 to 741,9689.1%
75 and over1,3766.3%

Race & ethnicity

CountShare
White (non-Hispanic)13,39761.7%
Black or African American6362.9%
American Indian & Alaska Native170.1%
Asian1,4306.6%
Native Hawaiian & Pacific Islander00.0%
Some other race2421.1%
Two or more races7373.4%
Hispanic or Latino (any race)5,24824.2%

Educational attainment (age 25+)

CountShare
No high school diploma1,0356.9%
High school graduate5,42335.9%
Some college or associate's4,32328.7%
Bachelor's degree2,70317.9%
Graduate or professional degree1,60310.6%

Commute to work

Mean travel time to work
31 min

How workers get to work

CountShare
Drove alone8,63879.9%
Carpooled7847.3%
Public transit3162.9%
Walked470.4%
Bicycle00.0%
Worked from home9008.3%
Other means1241.1%

Travel time

CountShare
Under 15 min2,26522.9%
15 to 29 min3,39634.3%
30 to 44 min2,14521.6%
45 to 59 min7867.9%
60+ min1,31713.3%

Households

Average household size
3.13
Poverty rate
7.5% (1,622 of 21,690)
CountShare
Family households5,58680.9%
Nonfamily households1,32119.1%

Housing

Median year structure built
1966

Occupancy

CountShare
Occupied6,90796.2%
Vacant2733.8%

Tenure (of occupied units)

CountShare
Owner-occupied5,86084.8%
Renter-occupied1,04715.2%

Units in structure

CountShare
1-unit, detached6,41289.3%
1-unit, attached1522.1%
2 to 4 units2483.5%
5 to 19 units2453.4%
20 or more units1231.7%
Mobile home & other00.0%

Geography

Place GEOID
3666212
Type (LSAD)
57
Land area
4.55 sq mi
Water area
0 sq mi
Center point
40.8714, -73.0466

Compare with nearby cities

5

New York rankings

21

Other places in Suffolk County

158