Middle Island is a CDP located in Suffolk County, New York. Middle Island has a 2025 population of 10,793 . Middle Island is currently growing at a rate of 0.19% annually but its population has decreased by -2.15% since the most recent census, which recorded a population of 11,030 in 2020.
The average household income in Middle Island is $106,925 with a poverty rate of 12.02%. The median age in Middle Island is 43.4 years: 40.9 years for males, and 45.7 years for females. For every 100 females there are 90.9 males.
Data after 2023 is projected based on recent change
The racial composition of Middle Island includes 76.33% White, 13.53% Black or African American, 3.03% other race, and smaller percentages for Asian, Native American and multiracial populations.
White (76.33%)
Black or African American (13.53%)
Two or more races (5.87%)
Other race (3.03%)
Asian (0.95%)
Native American (0.29%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8,462 | 76.33% |
| Black or African American | 1,500 | 13.53% |
| Two or more races | 651 | 5.87% |
| Other race | 336 | 3.03% |
| Asian | 105 | 0.95% |
| Native American | 32 | 0.29% |
Married
Widowed
Divorced
Separated
Never Married
Middle Island's average per capita income is $60,259. Household income levels show a median of $89,702. The poverty rate stands at 12.02%.
Name | Median | Mean |
|---|---|---|
| Married Families | $146,473 | - |
| Families | $105,043 | $126,623 |
| Households | $89,702 | $106,925 |
| Non Families | $53,016 | $70,381 |
Average Income
Median Household Income
Poverty Rate