| Kamala Harris ✓Democratic | 65.2% | 2,552 |
|---|---|---|
| Donald TrumpRepublican | 33.1% | 1,295 |
| OtherAll other candidates | 1.7% | 68 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +34.0% |
| 2012 | +37.5% |
| 2016 | +42.6% |
| 2020 | +41.5% |
| 2024 | +32.1% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 65.2%Harris2,552 | 33.1%Trump1,295 | 1.7% | 3,915 | ||
| D | 70.5%Biden3,115 | 29.1%Trump1,284 | 0.4%incl. Jorgensen | 4,417 | ||
| D | 69.9%Clinton2,707 | 27.4%Trump1,059 | 2.7%incl. Johnson | 3,870 | ||
| D | 68.8%Obama2,536 | 31.2%Romney1,152 | 0.0% | 3,688 | ||
| D | 66.5%Obama2,604 | 32.5%McCain1,273 | 0.9% | 3,913 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | LeoniaCity | New JerseyState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 33.9% | 54.0% | 61.0% |
| Black | 3.2% | 12.8% | 12.2% |
| Asian | 37.5% | 10.1% | 6.0% |
| Two or more races | 19.8% | 12.4% | 12.6% |
| Other race | 5.7% | 10.7% | 8.2% |
| Hispanic or Latino | 25.3% | 22.5% | 19.3% |
| Income & Age | |||
| Median household income | $129,665 | $103,556 | $84,427 |
| Poverty rate | 4.3% | 9.7% | 12.5% |
| Median age | 45.9 | 40.3 | 39.1 |
| Age 18–24 | 7.9% | 8.4% | 9.2% |
| Age 65 and older | 18.2% | 17.1% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 53.1% | 43.5% | 35.6% |
| Speaks a non-English language at home | 42.5% | 33.2% | 22.3% |
| Spanish | 17.2% | 17.2% | 13.6% |
| Other Indo-European | 5.9% | 5.6% | 2.0% |
| Korean | 5.8% | 0.9% | 0.3% |
| Russian, Polish, or other Slavic | 4.2% | 1.7% | 0.7% |
| Ancestry | |||
| Largest ancestry | Italian 14.3% | Italian 13.7% | German 12.5% |
| 2nd-largest ancestry | Irish 9.8% | Irish 12.1% | English 9.5% |
| 3rd-largest ancestry | German 6.7% | German 8.6% | Irish 9.4% |
| Religion | |||
| Catholic | 39.6%County context | 32.0% | 18.6% |
| Evangelical Protestant | 3.6%County context | 5.1% | 16.5% |
| Unaffiliated or unclaimed | 41.5%County context | 47.8% | 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.
Leonia sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 42.6 points in 2016. Between 2020 and 2024 the city moved 9.3 points toward the Republican candidate; the 2024 margin was 32.1 points.
A population of 9,336, a 34% non-Hispanic-white share, and a median household income of $129,665 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 →
Leonia, New Jersey. Akashic. https://akashic.app/city/3440020/. Accessed May 20, 2026. License: CC BY 4.0.