Great River, NY Demographics

Population 1,258 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Great River, NY map of median age by neighborhood
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Population and households in Great River

Household size in Great River

Household size, people per household
PeriodGreat RiverNew York areaNew YorkU.S.
2006–103.342.792.682.68
2010–143.022.852.722.73
2015–192.782.822.692.71
2020–242.602.792.652.65
Change−0.74−0.00−0.03−0.03
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At 2.60 people per household, Great River sits close to the national average of 2.65. The typical household here is smaller than in the New York area as a whole, where it has 2.79 people. Household size has dropped from 3.34 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 Great River

Median age, years
PeriodGreat RiverNew York areaNew YorkU.S.
2006–1040.238.038.337.7
2010–1445.538.739.038.6
2015–1946.139.840.239.6
2020–2452.040.440.840.1
Change+11.8+2.4+2.5+2.3
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Great River skews older: half of its residents are older than 52.0, 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 Great River

Single-parent households, % of households
PeriodGreat RiverNew York areaNew YorkU.S.
2006–108.7%13.1%13.1%12.3%
2010–142.8%12.8%12.7%12.3%
2015–197.1%11.4%11.6%11.6%
2020–241.3%11.6%11.6%11.6%
Change−7.4 pts−1.5 pts−1.5 pts−0.6 pts
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Single parents head only 1.3% of households in Great River, well below the national share of 11.6%.

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 Great River

Renters in Great River

Renters, % of occupied homes
PeriodGreat RiverNew York areaNew YorkU.S.
2006–106.0%47.1%44.8%33.3%
2010–147.1%48.7%46.2%35.6%
2015–1919.3%48.8%46.2%36.0%
2020–243.8%48.6%45.7%34.8%
Change−2.2 pts+1.5 pts+0.9 pts+1.5 pts
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Only 3.8% of households in Great River rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 51.6% have no mortgage at all, well above 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 Great River

Vacant homes, % of all homes
PeriodGreat RiverNew York areaNew YorkU.S.
2006–103.5%9.1%10.3%11.4%
2010–1412.4%9.0%10.4%11.4%
2015–1917.6%9.1%11.0%11.1%
2020–249.0%7.9%9.7%9.6%
Change+5.5 pts−1.2 pts−0.6 pts−1.8 pts
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Vacancy in Great River is close to the national rate: 9.0% of homes are empty, against 9.6%.

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 Great River

Age of homes, median year built
PeriodGreat RiverNew York areaNew YorkU.S.
2006–101963195719561974
2010–141964195819571975
2015–191967195919581977
2020–241962196219611980
Change−1+5+5+6
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Great River is a place of older homes: half were built before 1962, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The New York area as a whole looks much the same.

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 Great River

Rent, per month
PeriodGreat RiverNew York areaNew YorkU.S.
2006–10$2,001$1,268$1,095$965
2010–14$1,805$1,377$1,201$1,040
2015–19$2,659$1,645$1,426$1,213
2020–24$2,740$2,060$1,794$1,571
Change+$739+$792+$698+$606
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Rent in Great River runs $2,740 a month at the median, utilities included, well above the U.S. median of $1,571. The typical renter here spends 29.2% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.

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 Great River

Bachelor's degrees in Great River

Bachelor's degrees, % of adults 25+
PeriodGreat RiverNew York areaNew YorkU.S.
2006–1060.9%35.0%31.9%28.4%
2010–1443.6%36.7%33.4%29.6%
2015–1962.6%39.9%36.2%32.1%
2020–2461.6%43.6%39.8%35.6%
Change+0.7 pts+8.6 pts+8.0 pts+7.2 pts
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Great River is highly educated: about six in ten adults 25 and older (61.6%) hold at least a bachelor's degree, far above the national share of 35.6%.

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 Great River

High school graduates, % of adults 25+
PeriodGreat RiverNew York areaNew YorkU.S.
2006–10100.0%83.7%84.0%84.9%
2010–1497.0%84.6%84.9%86.1%
2015–1999.9%86.2%86.5%87.7%
2020–2495.2%86.9%87.3%89.3%
Change−4.8 pts+3.3 pts+3.3 pts+4.3 pts
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High school completion is high in Great River: 95.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.

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 Great River

Unemployment, % of the labor force
PeriodGreat RiverNew York areaNew YorkU.S.
2006–100.0%7.9%7.7%8.1%
2010–143.6%9.5%9.2%9.4%
2015–194.7%5.7%5.7%5.6%
2020–244.5%6.9%6.6%5.4%
Change+4.4 pts−0.9 pts−1.2 pts−2.7 pts
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Unemployment in Great River runs below the national rate: 4.5% of the labor force was out of work and looking, against 5.4% nationally. 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).

Great River compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Great River2.6052.01.3%3.8%9.0%1962$2,74061.6%95.2%4.5%
East Islip2.9544.78.3%15.2%4.4%1962$2,73444.6%93.6%1.6%
Oakdale2.5647.75.1%15.7%10.2%1969$2,39445.4%96.4%4.0%
Islip Terrace3.1642.27.0%10.5%5.4%1960$2,63530.0%91.2%1.2%
North Great River3.2845.63.8%12.6%3.5%1965$2,41628.6%86.2%3.0%
Islip2.8445.76.4%17.1%6.4%1963$2,46636.2%89.7%5.7%
West Sayville2.8945.610.1%20.0%15.3%1954$2,66544.0%94.6%1.5%
Bohemia2.8244.15.4%16.7%7.7%1970$2,67141.3%95.1%3.0%
Sayville2.6946.45.4%22.6%11.2%1964$2,23454.9%95.8%2.0%
Central Islip4.5835.318.5%20.1%9.8%1969$2,31418.6%73.6%5.9%
Bay Shore3.3337.715.0%30.2%6.4%1962$2,17330.5%85.5%6.2%

All figures 2020–24.

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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 Great River. 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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