† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupWest IslipNew YorkUnited States
Italian27.9%10.9%4.8%
Irish21.9%10.5%9.4%
German14.9%8.6%12.5%
English5.7%5.6%9.5%
Polish5.4%3.9%2.2%
American5.3%4.2%5.3%
Russian2.0%1.2%—
Greek1.6%——
Salvadoran2.8%0.9%0.7%
Puerto Rican2.4%5.1%1.8%
Dominican1.4%4.6%0.7%
Ecuadorian1.1%1.6%—
Mexican0.8%2.5%11.3%
Colombian0.8%0.9%0.4%
Guatemalan0.6%0.5%0.5%
Honduran0.6%0.3%0.3%
Asian Indian0.4%1.9%1.4%
Chinese0.3%3.6%1.3%
Pakistani0.2%0.4%—
African American†0.7%8.0%9.9%
Haitian0.2%0.9%0.3%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
West Islip
New York
United States
Median age
38.5
39.9
39.1
Age 18–24
11.5%
9.0%
9.2%
Age 65 and older
13.8%
18.0%
17.2%
Household economy
Measure
West Islip
New York
United States
Median household income
$176,281
$85,974
$84,427
Poverty rate
2.7%
14.0%
12.5%
Bachelor's degree or higher (25+)
49.8%
40.0%
35.6%
Languages at home
Measure
West Islip
New York
United States
Speaks a non-English language at home
9.5%
30.9%
22.3%
Spanish
4.9%
14.8%
13.6%
Other Indo-European
2.1%
4.0%
2.0%
Religious landscape
Measure
West Islip
New York
United States
Catholic
—
30.8%
18.6%
Evangelical Protestant
—
5.1%
16.5%
Unclaimed / not counted
—
48.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
West Islip, New York
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−23.5%
2008
−18.6%
2012
−23.3%
2016
−32.6%
2020
−28.8%
2024
−37.7%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
30.7%Harris4,937
68.4%Trump10,991
0.9%
R+37.7
R+8.9
R+36.2
16,073
R
34.9%Biden5,633
63.7%Trump10,275
1.4%
R+28.8
D+3.8
R+33.2
16,133
R
31.8%Clinton4,581
64.3%Trump9,277
3.9%
R+32.6
R+9.3
R+34.7
14,417
R
37.7%Obama4,149
61.0%Romney6,712
1.4%
R+23.3
R+4.7
R+27.1
11,010
R
40.2%Obama5,693
58.8%McCain8,329
1.0%
R+18.6
D+4.8
R+25.9
14,169
R
37.3%Kerry5,170
60.7%Bush8,424
2.0%
R+23.5
—
R+21.0
13,875
West Islip sits in Suffolk County's South Shore corridor, a zone of middle-income homeowners whose voting patterns have shifted measurably between federal and local contests over the past decade.
Across the recorded series it reached a Republican high of 37.7 points in 2024. Between 2020 and 2024 the city moved 8.9 points toward the Republican candidate; the 2024 margin was 37.7 points.
A population of 26,865, a 81% non-Hispanic-white share, and a median household income of $176,281 describe the city. The city's voting pattern over the last decade is most similar to that of Seaford and Nesconset.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, West Islip, New York voted Republican by 37.7 points (R+37.7), carried by the Republican candidate. Out of 16,073 votes cast, 4,937 went Democratic and 10,991 went Republican.
How many people live in West Islip, New York?
West Islip, New York has a population of 26,865 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in West Islip, New York?
Median household income in West Islip, New York is $176,281 — above the national median of $80,734. The New York state median is $85,974.
What is the political history of West Islip, New York?
Akashic tracks 6 presidential elections in West Islip, New York from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
