St. Tammany, Louisiana — Presidential Election Results
St. Tammany, Louisiana has voted Republican in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 22.2 pts more Rep. than Louisiana overall.
Jump to year: 2000 · 2004 · 2008 · 2012 · 2016 · 2020 · 2024
Full Election History, 2000–2024
| Year | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast | Swing | Vs. Louisiana |
|---|---|---|---|---|---|---|---|---|
| 2000 | George W. Bush | Republican | 59,193 | 70.7% | 43.6 pts (36,471 votes) | 83,737 | — | 36.6 pts more Rep. |
| 2004 | George W. Bush | Republican | 75,139 | 74.7% | 50.2 pts (50,474 votes) | 100,592 | -6.1 pts | 35.9 pts more Rep. |
| 2008 | John McCain | Republican | 83,047 | 75.8% | 53.4 pts (58,458 votes) | 109,503 | -3.7 pts | 35.3 pts more Rep. |
| 2012 | Mitt Romney | Republican | 84,723 | 75.0% | 52.3 pts (58,995 votes) | 112,902 | +0.9 pts | 35.9 pts more Rep. |
| 2016 | Donald Trump | Republican | 90,915 | 73.1% | 50.8 pts (63,198 votes) | 124,392 | +0.1 pts | 32.9 pts more Rep. |
| 2020 | Donald J Trump | Republican | 99,666 | 71.1% | 44.2 pts (61,920 votes) | 140,110 | +8.2 pts | 26.1 pts more Rep. |
| 2024 | Donald J Trump | Republican | 98,377 | 71.1% | 43.8 pts (60,600 votes) | 138,384 | +0.6 pts | 22.2 pts more Rep. |
Population Context
Total Census Bureau population estimate for the county that year, and recorded votes as a share of that total population. This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
| Year | County Population | Votes Cast (% of Population) |
|---|---|---|
| 2000 | 192,131 | 43.6% of population |
| 2004 | 211,405 | 47.6% of population |
| 2008 | 229,252 | 47.8% of population |
| 2012 | 239,064 | 47.2% of population |
| 2016 | 252,468 | 49.3% of population |
| 2020 | 265,007 | 52.9% of population |
| 2024 | 277,615 | 49.8% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in St. Tammany shifted 0.0 points toward the Democratic candidate, based on recorded county returns. This reflects the vote totals in this dataset only; no claim is made here about the causes of that shift.
Margin Over Time
Democratic candidate's margin (percentage points, two-party vote share). Positive values favor the Democratic candidate; negative values favor the Republican candidate.
Bellwether Status
St. Tammany has matched the national popular winner in 4 of the last 7 presidential elections (57%), and Louisiana's own statewide winner in 7 of 7 (100%). Compare every county on the bellwether counties page.
Related Pages
Other Louisiana Counties
Frequently Asked Questions
How has St. Tammany voted in presidential elections since 2000?
Since 2000, St. Tammany has voted Democratic in 0 of 7 recorded presidential elections and Republican in 7 of 7, based on county-level returns through 2024.
What was the closest presidential election in St. Tammany?
St. Tammany's closest recorded margin was in 2024, when Donald J Trump (Republican) won by 44.5 points (60,600 votes) out of 138,384 total votes cast.
Has St. Tammany ever flipped between parties?
Not in the 2000-2024 record on this page -- St. Tammany has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in St. Tammany?
The widest margin on record for St. Tammany was in 2008, when John McCain (Republican) won by 54.3 points.
How many votes were cast in St. Tammany relative to its population?
In 2024, 138,384 votes were recorded in St. Tammany against a total population of 277,615 (49.8% of the total population). This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
Is St. Tammany a presidential bellwether county?
St. Tammany has matched the national popular winner in 4 of the last 7 presidential elections (57%), and Louisiana's own statewide winner in 7 of 7 (100%).