Tool
Compare places
Put up to four U.S. cities, towns or census-designated places side by side on 29 figures: 22 measures from the ACS 2020-2024 5-year estimates, each with its margin, and their 2025 population estimate, growth, density, new homes and housing costs against income. A filled square marks a figure that differs from the first place by more than both margins of error allow; without it, the survey cannot tell the two apart.
How do Islip, NY compare?
| Figure | Islip, NY |
|---|---|
| Residents, July 2025 (estimate) | 340,867 |
| Change since April 2020 | +0.3% |
| Residents counted in the 2020 Census | 339,938 |
| Residents per square mile (2020) | 3,294 |
| Homes permitted in 2025 per 1,000 residents | 0.2 |
| Median home value ÷ median household income | 4.1 years of income |
| A year of median rent ÷ median income of all households (renters usually earn less) | 20.4% |
| Measure | Islip, NY |
|---|---|
| Total population | 339,106±46 |
| Median age | 39.2±0.6 |
| Hispanic or Latino (any race) | 37.8%±1.2 pts |
| White alone, not Hispanic | 47.3%±1.2 pts |
| Black or African American alone, not Hispanic | 7.9%±0.5 pts |
| Asian alone, not Hispanic | 3.6%±0.6 pts |
| Born outside the United States | 23.2%±1.0 pts |
| Bachelor's degree or higher (age 25+) | 32.6%±0.9 pts |
| Median household income | $130,132±$2,573 |
| Per capita income | $48,103±$1,065 |
| People below the poverty line | 6.4%±0.6 pts |
| Unemployment rate | 4.5%±0.5 pts |
| Median home value (owner-occupied) | $535,300±$6,786 |
| Median gross rent | $2,209±$47 |
| Renters paying 35% or more of income on rent | 48.9%±2.9 pts |
| Owner-occupied homes | 80.5%±1.0 pts |
| Built 2020 or later | 0.7%±0.2 pts |
| Worked from home | 8.3%±0.5 pts |
| Drove alone to work | 74.4%±1.1 pts |
| Public transportation | 3.5%±0.4 pts |
| Mean travel time to work | 28.3 min±0.6 |
| No health insurance coverage | 7.0%±0.5 pts |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census Bureau population estimates, Vintage 2025; 2020 Census; Building Permits Survey 2025 · Check it at data.census.gov