| Donald Trump ✓Republican | 59.5% | 5,800 |
|---|---|---|
| Kamala HarrisDemocratic | 39.5% | 3,855 |
| OtherAll other candidates | 1.0% | 101 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −2.2% |
| 2012 | −3.1% |
| 2016 | −17.1% |
| 2020 | −9.6% |
| 2024 | −19.9% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 39.5%Harris3,855 | 59.5%Trump5,800 | 1.0% | 9,756 | ||
| R | 44.5%Biden4,429 | 54.1%Trump5,390 | 1.4%incl. Jorgensen | 9,963 | ||
| R | 39.3%Clinton3,451 | 56.4%Trump4,953 | 4.2%incl. Johnson | 8,775 | ||
| R | 48.4%Obama3,871 | 51.6%Romney4,120 | 0.0% | 7,991 | ||
| R | 48.4%Obama4,111 | 50.6%McCain4,299 | 1.0% | 8,493 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | IslipCity | New YorkState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 71.0% | 55.2% | 61.0% |
| Black | 3.1% | 14.4% | 12.2% |
| Asian | 6.1% | 9.1% | 6.0% |
| Two or more races | 12.8% | 10.3% | 12.6% |
| Other race | 6.9% | 11.1% | 8.2% |
| Hispanic or Latino | 20.9% | 19.8% | 19.3% |
| Income & Age | |||
| Median household income | $120,909 | $85,974 | $84,427 |
| Poverty rate | 5.7% | 14.0% | 12.5% |
| Median age | 43.9 | 39.9 | 39.1 |
| Age 18–24 | 9.0% | 9.0% | 9.2% |
| Age 65 and older | 17.9% | 18.0% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 40.2% | 40.0% | 35.6% |
| Speaks a non-English language at home | 24.8% | 30.9% | 22.3% |
| Spanish | 16.1% | 14.8% | 13.6% |
| Other Indo-European | 3.3% | 4.0% | 2.0% |
| French (incl. Cajun & Haitian) | 1.1% | 1.5% | 0.7% |
| Russian, Polish, or other Slavic | 1.1% | 2.0% | 0.7% |
| Ancestry | |||
| Largest ancestry | Italian 20.6% | Italian 10.9% | German 12.5% |
| 2nd-largest ancestry | Irish 16.2% | Irish 10.5% | English 9.5% |
| 3rd-largest ancestry | German 11.0% | German 8.6% | Irish 9.4% |
| Religion | |||
| Catholic | 54.9%County context | 30.8% | 18.6% |
| Evangelical Protestant | 3.7%County context | 5.1% | 16.5% |
| Unaffiliated or unclaimed | 32.8%County context | 48.7% | 51.5% |
ACS values are survey estimates and may include margins of error.
Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
Islip sits in the Mid-Atlantic. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 19.9 points in 2024. Between 2020 and 2024 the city moved 10.3 points toward the Republican candidate; the 2024 margin was 19.9 points.
A population of 17,362, a 71% non-Hispanic-white share, and a median household income of $120,909 describe the city.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Islip, New York. Akashic. https://akashic.app/city/3637869/. Accessed May 20, 2026. License: CC BY 4.0.