St. John the Baptist Parish, Louisiana: Realigning Affluent Suburb county. In 2024, voted D+29%. Democratic peak: D+84 in 1904.
Key facts
- 2024 presidential margin
- D+29MIT Election Lab
- Political typology
- Realigning Affluent SuburbAkashic typology
- Population
- 40,7432024 5-year
- Median household income
- $66,6302024 5-year
- White (non-Hispanic)
- 31.0%2024 5-year
- Black
- 57.0%2024 5-year
- Hispanic / Latino
- 8.9%2024 5-year
- Peak Democratic margin
- D+84 in 1904MIT Election Lab
- Peak Republican margin
- R+49 in 1896MIT Election Lab
- Most similar
- Roanoke city, VA · similarity 0.98
2024 results by precinct
2024 precinct map of St. John the Baptist ParishPrecinct-level 2024 presidential results for St. John the Baptist Parish, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −37.9% |
| 1896 | −48.5% |
| 1900 | +57.2% |
| 1904 | +84.1% |
| 1908 | +78.9% |
| 1912 | +37.4% |
| 1916 | +42.2% |
| 1920 | −2.2% |
| 1924 | +26.8% |
| 1928 | +78.3% |
| 1932 | +62.1% |
| 1936 | +73.9% |
| 1940 | +61.4% |
| 1944 | +74.3% |
| 1948 | +22.3% |
| 1952 | +53.1% |
| 1956 | −3.5% |
| 1960 | +69.8% |
| 1964 | −40.1% |
| 1968 | +31.0% |
| 1972 | −10.0% |
| 1976 | +21.9% |
| 1980 | +13.2% |
| 1984 | −8.6% |
| 1988 | +5.6% |
| 1992 | +12.6% |
| 1996 | +22.9% |
| 2000 | +13.1% |
| 2004 | +6.5% |
| 2008 | +16.2% |
| 2012 | +26.3% |
| 2016 | +24.5% |
| 2020 | +28.2% |
| 2024 | +29.1% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 12,043 | 6,557 | 18,827 | ||
| D | 13,582 | 7,538 | 21,432 | ||
| D | 12,661 | 7,569 | 20,743 | ||
| D | 13,179 | 7,620 | 21,123 | ||
| D | 12,424 | 8,912 | 21,656 | ||
| D | 10,305 | 9,039 | 19,617 | ||
| D | 9,745 | 7,423 | 17,713 | ||
| D | 9,937 | 6,025 | 17,051 | ||
| D | 8,977 | 6,730 | 17,851 | ||
| D | 8,366 | 7,464 | 16,219 | ||
| R | 7,646 | 9,093 | 16,851 | ||
| D | 7,647 | 5,819 | 13,861 | ||
| D | 5,700 | 3,597 | 9,609 | ||
| R | 2,815 | 3,525 | 7,086 | ||
| O | 3,245 | 940 | 7,431 | ||
| R | 1,694 | 3,958 | 5,652 | ||
| D | 3,782 | 488 | 4,720 | ||
| R | 1,278 | 1,372 | 2,714 | ||
| D | 2,132 | 654 | 2,786 | ||
| D | 799 | 379 | 1,880 | ||
| D | 1,324 | 195 | 1,519 | ||
| D | 1,192 | 285 | 1,477 | ||
| D | 1,742 | 262 | 2,004 | ||
| D | 799 | 176 | 1,004 | ||
| D | 971 | 118 | 1,089 | ||
| D | 336 | 194 | 530 | ||
| R | 239 | 250 | 489 | ||
| D | 289 | 115 | 412 | ||
| D | 190 | 74 | 310 | ||
| D | 287 | 33 | 322 | ||
| D | 283 | 24 | 308 | ||
| D | 331 | 90 | 421 | ||
| R | 180 | 539 | 740 | ||
| R | 503 | 1,118 | 1,621 | ||
| — | — | — | — | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
French
8.2%
German
5.7%
American
5.0%
English
3.7%
Italian
3.2%
Irish
2.8%
African American
45.6%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 40.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$66,630
St. John the Baptist Parish ranks near the middle of US counties.
St. John the Baptist Parish$66,630
Louisiana$60,756
United States$80,734
St. John the Baptist Parish ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
14.4%
Children face moderate poverty.
Children under 1817.0%
Working age (18–64)14.1%
Seniors (65+)7.5%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
92.0%
speak English only
Spanish6.1%
Asian & Pacific Islander0.7%
Other Indo-European0.6%
Other languages0.6%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 40.3% of residents not counted as adherents by any reporting body.
St. John the Baptist Parish sits between New Orleans and Baton Rouge along the River Road corridor, where a majority-Black population has produced Democratic presidential margins exceeding 25 points in every cycle since 2008.
Once reliably Republican — a margin of forty-nine points in 1896 at its widest — St. John the Baptist Parish has trended Democratic. Between 2020 and 2024 the county moved one point toward the Democratic candidate; the 2024 margin was twenty-nine points.
A median household income of $66,630 — among the higher at this geographic scale — and a population of 40,743 describe the county. The county's voting pattern over the last decade is most similar to that of Roanoke city and Sharkey County.
Most similar counties
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
St. John the Baptist Parish, Louisiana. Akashic. https://akashic.app/county/22095/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did St. John the Baptist Parish, Louisiana vote in 2024?
In 2024, St. John the Baptist Parish, Louisiana voted Democratic by 29.1 points (D+29), carried by the Democratic candidate. Out of 18,827 votes cast, 12,043 went Democratic and 6,557 went Republican.
What is St. John the Baptist Parish, Louisiana's political typology?
Akashic places St. John the Baptist Parish, Louisiana in the "Realigning Affluent Suburb" typology — College-educated, affluent suburbs — the one bloc moving toward the Democratic Party. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 26 times, Republican 7 times, and other 1 times.
When did St. John the Baptist Parish, Louisiana last vote Republican?
The most recent presidential election in which St. John the Baptist Parish, Louisiana voted Republican was 1984.
How many people live in St. John the Baptist Parish, Louisiana?
St. John the Baptist Parish, Louisiana has a population of 40,743 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in St. John the Baptist Parish, Louisiana?
Median household income in St. John the Baptist Parish, Louisiana is $66,630 — below the national median of $80,734. The Louisiana state median is $60,756.
What is the political history of St. John the Baptist Parish, Louisiana?
Akashic tracks 38 presidential elections in St. John the Baptist Parish, Louisiana from 1876 to 2024. Of those, 26 went Democratic and 7 went Republican. The county's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.