Population 4,539 · Census ACS 2020–24
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Population and households in Locust Valley
Household size in Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.68 | 2.79 | 2.68 | 2.68 |
| 2010–14 | 2.60 | 2.85 | 2.72 | 2.73 |
| 2015–19 | 2.85 | 2.82 | 2.69 | 2.71 |
| 2020–24 | 3.35 | 2.79 | 2.65 | 2.65 |
| Change | +0.68 | −0.00 | −0.03 | −0.03 |
Households in Locust Valley are large by national standards, averaging 3.35 people against 2.65 for the U.S. That usually means more families with children at home. Household size has climbed from 2.68 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.7 | 38.0 | 38.3 | 37.7 |
| 2010–14 | 42.8 | 38.7 | 39.0 | 38.6 |
| 2015–19 | 40.9 | 39.8 | 40.2 | 39.6 |
| 2020–24 | 44.2 | 40.4 | 40.8 | 40.1 |
| Change | +2.5 | +2.4 | +2.5 | +2.3 |
Locust Valley skews older: half of its residents are older than 44.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 13.1% | 13.1% | 12.3% |
| 2010–14 | 7.9% | 12.8% | 12.7% | 12.3% |
| 2015–19 | 9.5% | 11.4% | 11.6% | 11.6% |
| 2020–24 | 5.0% | 11.6% | 11.6% | 11.6% |
| Change | −0.5 pts | −1.5 pts | −1.5 pts | −0.6 pts |
Single-parent households are relatively rare in Locust Valley: 5.0% of households, against 11.6% nationally.
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 Locust Valley
Renters in Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.2% | 47.1% | 44.8% | 33.3% |
| 2010–14 | 26.7% | 48.7% | 46.2% | 35.6% |
| 2015–19 | 27.1% | 48.8% | 46.2% | 36.0% |
| 2020–24 | 13.2% | 48.6% | 45.7% | 34.8% |
| Change | −11.0 pts | +1.5 pts | +0.9 pts | +1.5 pts |
Only 13.2% of households in Locust Valley rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 36.1% have no mortgage at all, below the national share of 39.8%.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.9% | 9.1% | 10.3% | 11.4% |
| 2010–14 | 4.4% | 9.0% | 10.4% | 11.4% |
| 2015–19 | 9.0% | 9.1% | 11.0% | 11.1% |
| 2020–24 | 1.9% | 7.9% | 9.7% | 9.6% |
| Change | −7.0 pts | −1.2 pts | −0.6 pts | −1.8 pts |
Only 1.9% of homes in Locust Valley are vacant, far below the national rate of 9.6%, which usually means strong demand for housing.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1946 | 1957 | 1956 | 1974 |
| 2010–14 | 1948 | 1958 | 1957 | 1975 |
| 2015–19 | 1950 | 1959 | 1958 | 1977 |
| 2020–24 | 1949 | 1962 | 1961 | 1980 |
| Change | +3 | +5 | +5 | +6 |
The housing in Locust Valley is old by national standards: the median home dates to 1949, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,880 | $1,268 | $1,095 | $965 |
| 2010–14 | $1,752 | $1,377 | $1,201 | $1,040 |
| 2015–19 | $2,016 | $1,645 | $1,426 | $1,213 |
| 2020–24 | $2,693 | $2,060 | $1,794 | $1,571 |
| Change | +$813 | +$792 | +$698 | +$606 |
Rent in Locust Valley runs $2,693 a month at the median, utilities included, well above the U.S. median of $1,571. Rent takes 48.1% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 Locust Valley
Bachelor's degrees in Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 48.0% | 35.0% | 31.9% | 28.4% |
| 2010–14 | 39.3% | 36.7% | 33.4% | 29.6% |
| 2015–19 | 46.0% | 39.9% | 36.2% | 32.1% |
| 2020–24 | 62.3% | 43.6% | 39.8% | 35.6% |
| Change | +14.3 pts | +8.6 pts | +8.0 pts | +7.2 pts |
College graduates are unusually common in Locust Valley: 62.3% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.5% | 83.7% | 84.0% | 84.9% |
| 2010–14 | 91.7% | 84.6% | 84.9% | 86.1% |
| 2015–19 | 93.0% | 86.2% | 86.5% | 87.7% |
| 2020–24 | 86.1% | 86.9% | 87.3% | 89.3% |
| Change | −11.4 pts | +3.3 pts | +3.3 pts | +4.3 pts |
About one in seven adults in Locust Valley never finished high school, a bit more than nationally: 86.1% have a diploma or equivalent, against 89.3% across the U.S. The New York area as a whole looks much the same.
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 Locust Valley
| Period | Locust Valley | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.9% | 7.9% | 7.7% | 8.1% |
| 2010–14 | 8.0% | 9.5% | 9.2% | 9.4% |
| 2015–19 | 3.0% | 5.7% | 5.7% | 5.6% |
| 2020–24 | 5.4% | 6.9% | 6.6% | 5.4% |
| Change | −1.5 pts | −0.9 pts | −1.2 pts | −2.7 pts |
Unemployment in Locust Valley is the same as the national rate: 5.4% of the labor force. The rate is lower than in the wider New York area (6.9%). 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).
Locust Valley 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Locust Valley | 3.35 | 44.2 | 5.0% | 13.2% | 1.9% | 1949 | $2,693 | 62.3% | 86.1% | 5.4% |
| Lattingtown | 2.67 | 50.1 | 1.7% | 12.5% | 7.2% | 1957 | $3,501 | 66.0% | 94.5% | 2.6% |
| Matinecock | 3.05 | 50.2 | 6.3% | 10.9% | 4.8% | 1957 | $3,469 | 69.4% | 94.9% | 5.5% |
| Mill Neck | 3.01 | 49.3 | 4.0% | 13.8% | 6.7% | 1958 | $3,501 | 70.4% | 93.0% | 5.6% |
| Glen Cove | 2.63 | 42.9 | 14.2% | 48.5% | 3.7% | 1964 | $2,425 | 41.6% | 86.1% | 4.6% |
| Bayville | 2.61 | 52.3 | 4.4% | 11.8% | 9.6% | 1966 | $2,247 | 53.4% | 95.9% | 5.6% |
| Upper Brookville | 2.88 | 51.7 | 3.2% | 17.9% | 5.8% | 1971 | $2,072 | 77.1% | 97.5% | 4.6% |
| Old Brookville | 3.07 | 49.4 | 4.7% | 14.3% | 3.0% | 1975 | $2,038 | 77.0% | 96.0% | 3.6% |
| Oyster Bay | 2.80 | 40.9 | 9.9% | 41.7% | 4.3% | 1951 | $2,290 | 44.9% | 93.0% | 2.9% |
| Sea Cliff | 2.83 | 43.1 | 4.3% | 22.7% | 9.4% | 1941 | $2,316 | 61.9% | 97.3% | 11.5% |
| Glen Head | 2.66 | 49.3 | 9.5% | 9.2% | 6.0% | 1959 | $2,474 | 62.7% | 94.2% | 1.9% |
All figures 2020–24.
Cities with similar populations: Roselawn, IN · Rio Bravo, TX · Rocky Ford, CO · Putney, VT · Russiaville, IN · Russell, KS · Rushville, IL · Byron, MI · Nixon, TX · Barre, MA
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 Locust Valley. 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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