- Lead
- 10,051
- Total
- 33,432
- vs nation
- D+31.5
Idaho 19th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 12,419
- Total
- 32,888
- vs nation
- D+33.3
- Lead
- 8,836
- Total
- 25,616
- vs nation
- D+32.4
- Lead
- 8,941
- Total
- 24,185
- vs nation
- D+33.1
- Lead
- 10,294
- Total
- 24,863
- vs nation
- D+34.1
- Lead
- 5,191
- Total
- 19,392
- vs nation
- D+29.2
- Lead
- 2,840
- Total
- 14,929
- vs nation
- D+18.5
- Lead
- 4,393
- Total
- 15,030
- vs nation
- D+20.7
Key facts
- 2024 presidential margin
- D+30.1MIT Election Lab
- Population
- 52,3342024 5-year
- Population density
- 546 / sq mi2024 5-year · TIGER/Line
- Land area
- 95.9 sq miTIGER/Line
- Median household income
- $95,0002024 5-year
- White (non-Hispanic)
- 84.6%2024 5-year
- Black
- 1.1%2024 5-year
- Hispanic / Latino
- 6.1%2024 5-year
- Peak Democratic margin
- D+76.3 in 1896MIT Election Lab
- Peak Republican margin
- R+29.8 in 1892MIT Election Lab
- Most similar
- Addison Senatorial District, VT · twin score 85.4
presidential history
Party record book
Idaho 19th State Senate 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
88.2%
365 votes · D+76.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 81.2%
Republican
Dwight D. Eisenhower1952
49.1%
2,091 votes · D+1.7 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 48.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
22,231votes
67.6% of the vote · D+37.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 21,193 votes
Republican
Donald Trump2024
11,142votes
33.3% of the vote · D+30.1 · modeled estimate
Runner-up · Donald Trump, 2020 · 9,812 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
+82.4pts D vs U.S.
Place D+76.3 · U.S. R+6.1 · modeled estimate
Runner-up · William J. Bryan, 1900 · +59.7 pts
Republican
Benjamin Harrison1892
+31.5pts R vs U.S.
Place R+29.8 · U.S. D+1.7 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1968 · −3.3 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 19th State Senate District sits in the Northern Rockies. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 76.3 points in 1896 and a Republican high of 29.8 points in 1892. Between 2020 and 2024 the district moved 7.7 points toward the Republican candidate; the 2024 margin was 30.1 points.
A population of 52,334, a 85% non-Hispanic-white share, and a median household income of $95,000 describe the district. The district's voting pattern over the last decade is most similar to that of Addison Senatorial District and Washington Senatorial District.
The state-senate 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 19th State Senate District. Akashic. https://akashic.app/sld-upper/16019/. Accessed May 20, 2026. License: CC BY 4.0.