- Lead
- 4,959
- Total
- 21,869
- vs nation
- R+21.2
Utah 18th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,244
- Total
- 21,877
- vs nation
- R+33.0
- Lead
- 783
- Total
- 18,817
- vs nation
- R+26.6
- Lead
- 9,947
- Total
- 15,508
- vs nation
- R+68.0
- Lead
- 6,349
- Total
- 14,137
- vs nation
- R+52.2
- Lead
- 8,683
- Total
- 14,006
- vs nation
- R+59.5
- Lead
- 6,098
- Total
- 11,285
- vs nation
- R+54.6
- Lead
- 3,238
- Total
- 9,175
- vs nation
- R+43.8
Key facts
- 2024 presidential margin
- R+22.7MIT Election Lab
- Population
- 42,3532024 5-year
- Population density
- 892 / sq mi2024 5-year · TIGER/Line
- Land area
- 47.5 sq miTIGER/Line
- Median household income
- $125,0002024 5-year
- White (non-Hispanic)
- 88.3%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 5.7%2024 5-year
- Peak Democratic margin
- D+48.6 in 1896MIT Election Lab
- Peak Republican margin
- R+64.8 in 1980MIT Election Lab
- Most similar
- State House District 17, UT · twin score 99.8
presidential history
Party record book
Utah 18th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1896–2024 · 33 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
William J. Bryan1896
74.3%
205 votes · D+48.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 65.3%
Republican
Ronald Reagan1984
81.1%
6,468 votes · R+63.5 · modeled estimate
Runner-up · Mitt Romney, 2012 · 81.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
7,870votes
36.0% of the vote · R+22.7 · modeled estimate
Runner-up · Joe Biden, 2020 · 7,299 votes
Republican
Donald Trump2020
13,543votes
61.9% of the vote · R+28.5 · modeled estimate
Runner-up · Donald Trump, 2024 · 12,829 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
+54.6pts D vs U.S.
Place D+48.6 · U.S. R+6.1 · modeled estimate
Runner-up · Al Smith, 1928 · +10.4 pts
Republican
Mitt Romney2012
+68.0pts R vs U.S.
Place R+64.1 · U.S. D+3.9 · modeled estimate
Runner-up · George W. Bush, 2004 · +59.5 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 29.9%5,230 | 70.1%12,241 | 17,471 |
With a 2024 presidential margin of R+22.7, this district reflects the heavily Republican character of Utah County's fast-growing suburban communities, where LDS household density and homeownership rates consistently produce lopsided Republican turnout.
Across the recorded series it reached a Democratic high of 48.6 points in 1896 and a Republican high of 64.8 points in 1980. Between 2020 and 2024 the district moved 5.9 points toward the Democratic candidate; the 2024 margin was 22.7 points.
A population of 42,353, a 88% non-Hispanic-white share, and a median household income of $125,000 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 17 and State House District 19.
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 →
Utah 18th State House District. Akashic. https://akashic.app/sld-lower/49018/. Accessed May 20, 2026. License: CC BY 4.0.