- Lead
- 13,494
- Total
- 19,956
- vs nation
- R+66.1
Idaho 27th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 13,057
- Total
- 20,073
- vs nation
- R+69.5
- Lead
- 9,980
- Total
- 17,116
- vs nation
- R+60.4
- Lead
- 11,729
- Total
- 17,494
- vs nation
- R+70.9
- Lead
- 9,777
- Total
- 16,945
- vs nation
- R+65.0
- Lead
- 11,360
- Total
- 17,155
- vs nation
- R+63.8
- Lead
- 9,578
- Total
- 15,595
- vs nation
- R+61.9
- Lead
- 5,662
- Total
- 16,107
- vs nation
- R+43.7
Key facts
- 2024 presidential margin
- R+67.6MIT Election Lab
- Population
- 50,8322024 5-year
- Population density
- 11 / sq mi2024 5-year · TIGER/Line
- Land area
- 4,522 sq miTIGER/Line
- Median household income
- $70,8302024 5-year
- White (non-Hispanic)
- 66.3%2024 5-year
- Black
- 0.2%2024 5-year
- Hispanic / Latino
- 30.0%2024 5-year
- Peak Democratic margin
- D+58.0 in 1896MIT Election Lab
- Peak Republican margin
- R+67.6 in 2024MIT Election Lab
- Most similar
- State House District 30, ID · twin score 96.3
presidential history
Party record book
Idaho 27th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
William J. Bryan1896
79.0%
1,669 votes · D+58.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 65.6%
Republican
Ronald Reagan1984
82.6%
13,969 votes · R+66.1 · modeled estimate
Runner-up · Donald Trump, 2024 · 82.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1936
6,868votes
65.6% of the vote · D+32.4 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1940 · 6,352 votes
Republican
Donald Trump2024
16,479votes
82.6% of the vote · R+67.6 · modeled estimate
Runner-up · Donald Trump, 2020 · 16,320 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
William J. Bryan1896
+64.1pts D vs U.S.
Place D+58.0 · U.S. R+6.1 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · +8.2 pts
Republican
Mitt Romney2012
+70.9pts R vs U.S.
Place R+67.0 · U.S. D+3.9 · modeled estimate
Runner-up · Donald Trump, 2020 · +69.5 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Idaho 27th State House District sits in the Northern Rockies. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 58.0 points in 1896 and a Republican high of 67.6 points in 2024. Between 2020 and 2024 the district moved 2.6 points toward the Republican candidate; the 2024 margin was 67.6 points.
A population of 50,832, a 66% non-Hispanic-white share, and a median household income of $70,830 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 30 and State House District 24.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Idaho 27th State House District. Akashic. https://akashic.app/sld-lower/16027/. Accessed May 20, 2026. License: CC BY 4.0.