Population 27,630 · Census ACS 2020–24
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Population and households in Smithtown
Household size in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.05 | 2.79 | 2.68 | 2.68 |
| 2010–14 | 2.99 | 2.85 | 2.72 | 2.73 |
| 2015–19 | 2.88 | 2.82 | 2.69 | 2.71 |
| 2020–24 | 2.94 | 2.79 | 2.65 | 2.65 |
| Change | −0.11 | −0.00 | −0.03 | −0.03 |
Smithtown is a place of big households: 2.94 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has dropped from 3.05, a much bigger shift than nationally.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 39.9 | 38.0 | 38.3 | 37.7 |
| 2010–14 | 43.6 | 38.7 | 39.0 | 38.6 |
| 2015–19 | 45.1 | 39.8 | 40.2 | 39.6 |
| 2020–24 | 45.9 | 40.4 | 40.8 | 40.1 |
| Change | +6.0 | +2.4 | +2.5 | +2.3 |
Smithtown skews older: half of its residents are older than 45.9, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 39.9, mirroring the country.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.6% | 13.1% | 13.1% | 12.3% |
| 2010–14 | 6.8% | 12.8% | 12.7% | 12.3% |
| 2015–19 | 5.3% | 11.4% | 11.6% | 11.6% |
| 2020–24 | 4.7% | 11.6% | 11.6% | 11.6% |
| Change | −1.9 pts | −1.5 pts | −1.5 pts | −0.6 pts |
Single-parent households are relatively rare in Smithtown: 4.7% of households, against 11.6% nationally. The single-parent share is down 1.9 points from 2006–10, as it has nationally. Smithtown has a lower share of single-parent households than at least four in five New York cities.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Smithtown
Renters in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.0% | 47.1% | 44.8% | 33.3% |
| 2010–14 | 14.2% | 48.7% | 46.2% | 35.6% |
| 2015–19 | 12.3% | 48.8% | 46.2% | 36.0% |
| 2020–24 | 13.8% | 48.6% | 45.7% | 34.8% |
| Change | −0.2 pts | +1.5 pts | +0.9 pts | +1.5 pts |
Only 13.8% of households in Smithtown rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About four in ten owners (40.3%) have paid off their mortgages, about the same as nationally. Renting is most common in the east and least common in the west.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.4% | 9.1% | 10.3% | 11.4% |
| 2010–14 | 3.3% | 9.0% | 10.4% | 11.4% |
| 2015–19 | 5.2% | 9.1% | 11.0% | 11.1% |
| 2020–24 | 4.0% | 7.9% | 9.7% | 9.6% |
| Change | −3.4 pts | −1.2 pts | −0.6 pts | −1.8 pts |
Only 4.0% of homes in Smithtown are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has fallen 3.4 points, as it has nationally. Smithtown has a lower vacancy rate than the great majority of New York cities.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1965 | 1957 | 1956 | 1974 |
| 2010–14 | 1966 | 1958 | 1957 | 1975 |
| 2015–19 | 1968 | 1959 | 1958 | 1977 |
| 2020–24 | 1969 | 1962 | 1961 | 1980 |
| Change | +4 | +5 | +5 | +6 |
Smithtown is a place of older homes: half were built before 1969, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Locally, though, homes here are newer than in the New York area as a whole, where the median home dates to 1962. The median year built has moved up from 1965 in 2006–10, a sign of steady new building.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,533 | $1,268 | $1,095 | $965 |
| 2010–14 | $1,414 | $1,377 | $1,201 | $1,040 |
| 2015–19 | $1,951 | $1,645 | $1,426 | $1,213 |
| 2020–24 | $2,296 | $2,060 | $1,794 | $1,571 |
| Change | +$762 | +$792 | +$698 | +$606 |
The median renter in Smithtown pays $2,296 a month for rent and utilities, well above the national median of $1,571. Rent has climbed $762 a month since 2006–10, up 50%, a slower climb than the nation's. Rent takes 32.8% of the typical renter's income, just over the 30% mark often used to define affordable rent. Rents run highest in the east and lowest in the north.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Smithtown
Bachelor's degrees in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 43.1% | 35.0% | 31.9% | 28.4% |
| 2010–14 | 45.5% | 36.7% | 33.4% | 29.6% |
| 2015–19 | 50.2% | 39.9% | 36.2% | 32.1% |
| 2020–24 | 51.7% | 43.6% | 39.8% | 35.6% |
| Change | +8.6 pts | +8.6 pts | +8.0 pts | +7.2 pts |
Smithtown is highly educated: just over half of adults 25 and older (51.7%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 8.6 points from 2006–10, in line with the national trend.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 95.4% | 83.7% | 84.0% | 84.9% |
| 2010–14 | 95.6% | 84.6% | 84.9% | 86.1% |
| 2015–19 | 95.3% | 86.2% | 86.5% | 87.7% |
| 2020–24 | 95.9% | 86.9% | 87.3% | 89.3% |
| Change | +0.5 pts | +3.3 pts | +3.3 pts | +4.3 pts |
High school completion is high in Smithtown: 95.9% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has edged up 0.5 points, a smaller shift than nationally.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Smithtown
| Period | Smithtown | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.4% | 7.9% | 7.7% | 8.1% |
| 2010–14 | 7.8% | 9.5% | 9.2% | 9.4% |
| 2015–19 | 2.5% | 5.7% | 5.7% | 5.6% |
| 2020–24 | 3.1% | 6.9% | 6.6% | 5.4% |
| Change | −2.2 pts | −0.9 pts | −1.2 pts | −2.7 pts |
The job market in Smithtown has been strong: just 3.1% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 2.2 points from 2006–10, in line with the national trend. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Smithtown compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Smithtown | 2.94 | 45.9 | 4.7% | 13.8% | 4.0% | 1969 | $2,296 | 51.7% | 95.9% | 3.1% |
| Village of the Branch | 3.29 | 47.0 | 1.5% | 1.5% | 8.7% | 1967 | $2,274 | 64.4% | 98.8% | 3.1% |
| Hauppauge | 3.11 | 43.9 | 8.4% | 15.9% | 5.6% | 1969 | $2,450 | 50.0% | 93.5% | 6.0% |
| Kings Park | 2.71 | 44.2 | 4.9% | 16.4% | 4.6% | 1968 | $1,757 | 50.7% | 94.8% | 3.6% |
| Nissequogue | 2.70 | 46.4 | 10.8% | 12.3% | 13.9% | 1977 | $3,283 | 62.9% | 98.2% | 3.0% |
| St. James | 2.71 | 48.3 | 5.9% | 13.3% | 4.8% | 1971 | $2,547 | 50.6% | 95.5% | 3.3% |
| Commack | 3.04 | 42.9 | 5.3% | 7.8% | 3.6% | 1966 | $2,640 | 59.7% | 96.7% | 4.0% |
| Nesconset | 3.00 | 43.1 | 6.2% | 11.0% | 1.3% | 1977 | $2,334 | 53.2% | 95.3% | 2.6% |
| Head of the Harbor | 3.02 | 44.6 | 6.0% | 3.2% | 20.6% | 1976 | $2,340 | 65.3% | 93.5% | 1.2% |
| Islandia | 2.79 | 42.1 | 7.2% | 4.0% | 8.3% | 1972 | $2,046 | 32.4% | 87.6% | 5.5% |
| Central Islip | 4.58 | 35.3 | 18.5% | 20.1% | 9.8% | 1969 | $2,314 | 18.6% | 73.6% | 5.9% |
All figures 2020–24.
Cities with similar populations: Hermiston, OR · Temple Terrace, FL · Temescal Valley, CA · Royersford, PA · Jenison, MI · Imperial, MO · Ilchester, MD · Humacao, PR · Hopewell, VA · Hixson, TN
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Smithtown. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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