Boundary, Idaho — Presidential Election Results
Boundary, Idaho has voted Republican in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 29.5 pts more Rep. than Idaho 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. Idaho |
|---|---|---|---|---|---|---|---|---|
| 2000 | George W. Bush | Republican | 2,797 | 72.0% | 50.6 pts (1,965 votes) | 3,884 | — | 12.5 pts more Rep. |
| 2004 | George W. Bush | Republican | 3,012 | 68.8% | 39.8 pts (1,744 votes) | 4,378 | +13.4 pts | 2.1 pts more Rep. |
| 2008 | John McCain | Republican | 3,078 | 65.0% | 33.7 pts (1,594 votes) | 4,733 | +5.8 pts | 8.9 pts more Rep. |
| 2012 | Mitt Romney | Republican | 3,138 | 69.1% | 42.1 pts (1,913 votes) | 4,544 | -8.9 pts | 11.0 pts more Rep. |
| 2016 | Donald Trump | Republican | 3,789 | 73.4% | 55.3 pts (2,856 votes) | 5,163 | -16.6 pts | 23.9 pts more Rep. |
| 2020 | Donald J Trump | Republican | 4,937 | 78.2% | 58.9 pts (3,717 votes) | 6,313 | +0.1 pts | 28.6 pts more Rep. |
| 2024 | Donald J Trump | Republican | 5,794 | 81.5% | 65.4 pts (4,649 votes) | 7,110 | -6.6 pts | 29.5 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 | 9,913 | 39.2% of population |
| 2004 | 10,163 | 43.1% of population |
| 2008 | 10,831 | 43.7% of population |
| 2012 | 10,817 | 42.0% of population |
| 2016 | 11,701 | 44.1% of population |
| 2020 | 12,141 | 52.0% of population |
| 2024 | 14,040 | 50.6% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Boundary shifted 12.9 points toward the Republican 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
Boundary has matched the national popular winner in 4 of the last 7 presidential elections (57%), and Idaho's own statewide winner in 7 of 7 (100%). Compare every county on the bellwether counties page.
Related Pages
Other Idaho Counties
Frequently Asked Questions
How has Boundary voted in presidential elections since 2000?
Since 2000, Boundary 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 Boundary?
Boundary's closest recorded margin was in 2008, when John McCain (Republican) won by 34.9 points (1,594 votes) out of 4,733 total votes cast.
Has Boundary ever flipped between parties?
Not in the 2000-2024 record on this page -- Boundary has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in Boundary?
The widest margin on record for Boundary was in 2024, when Donald J Trump (Republican) won by 67.0 points.
How many votes were cast in Boundary relative to its population?
In 2024, 7,110 votes were recorded in Boundary against a total population of 14,040 (50.6% 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 Boundary a presidential bellwether county?
Boundary has matched the national popular winner in 4 of the last 7 presidential elections (57%), and Idaho's own statewide winner in 7 of 7 (100%).