| Donald Trump ✓Republican | 62.2% | 7,840 |
|---|---|---|
| Kamala HarrisDemocratic | 36.3% | 4,577 |
| OtherAll other candidates | 1.5% | 193 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −44.4% |
| 2012 | −42.3% |
| 2016 | −39.5% |
| 2020 | −30.0% |
| 2024 | −25.9% |
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 4,577 | 7,840 | 12,610 | ||
| R | 5,392 | 10,137 | 15,839 | ||
| R | 3,788 | 9,111 | 13,492 | ||
| R | 3,556 | 8,764 | 12,320 | ||
| R | 3,282 | 8,710 | 12,223 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | SlidellCity | LouisianaState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 62.6% | 56.9% | 61.0% |
| Black | 20.3% | 30.7% | 12.2% |
| Asian | 2.1% | 1.7% | 6.0% |
| Two or more races | 11.0% | 7.4% | 12.6% |
| Other race | 4.0% | 3.2% | 8.2% |
| Hispanic or Latino | 9.8% | 7.2% | 19.3% |
| Income & Age | |||
| Median household income | $70,497 | $60,756 | $84,427 |
| Poverty rate | 15.7% | 19.0% | 12.5% |
| Median age | 38.9 | 38 | 39.1 |
| Age 18–24 | 7.7% | 9.1% | 9.2% |
| Age 65 and older | 18.4% | 16.8% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 31.4% | 27.0% | 35.7% |
| Speaks a non-English language at home | 8.6% | 8.5% | 22.3% |
| Spanish | 4.8% | 4.7% | 13.6% |
| Vietnamese | 1.2% | 0.5% | 0.5% |
| French (incl. Cajun & Haitian) | 1.0% | 1.5% | 0.7% |
| Ancestry | |||
| Largest ancestry | German 14.9% | French 9.6% | German 12.5% |
| 2nd-largest ancestry | French 14.1% | American 7.4% | English 9.5% |
| 3rd-largest ancestry | Irish 13.1% | English 7.3% | Irish 9.4% |
| Religion | |||
| Catholic | 54.8%County context | 26.8% | 18.6% |
| Evangelical Protestant | 16.7%County context | 25.0% | 16.5% |
| Unaffiliated or unclaimed | 18.9%County context | 36.8% | 51.5% |
| Mainline Protestant | 5.9%County context | 3.6% | 5.2% |
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.
Slidell sits in the Gulf South. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 44.4 points in 2008. Between 2020 and 2024 the city moved 4.1 points toward the Democratic candidate; the 2024 margin was 25.9 points.
A population of 28,561, a 63% non-Hispanic-white share, and a median household income of $70,497 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 →
Slidell, Louisiana. Akashic. https://akashic.app/city/2270805/. Accessed May 20, 2026. License: CC BY 4.0.