Summit County, Utah: Diversifying Metro county. In 2024, voted D+15%. Democratic peak: D+87 in 1896.
Key facts
- 2024 presidential margin
- D+15MIT Election Lab
- Political typology
- Diversifying MetroAkashic typology
- Population
- 42,9702024 5-year
- Median household income
- $138,1142024 5-year
- White (non-Hispanic)
- 85.0%2024 5-year
- Black
- 0.4%2024 5-year
- Hispanic / Latino
- 11.4%2024 5-year
- Peak Democratic margin
- D+87 in 1896MIT Election Lab
- Peak Republican margin
- R+45 in 1984MIT Election Lab
- Most similar
- Fayette County, KY · similarity 0.93
2024 results by precinct
2024 precinct map of Summit CountyPrecinct-level 2024 presidential results for Summit County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | No data |
| 1896 | +86.6% |
| 1900 | +6.2% |
| 1904 | −22.7% |
| 1908 | −6.7% |
| 1912 | −10.5% |
| 1916 | +10.2% |
| 1920 | −25.0% |
| 1924 | −27.6% |
| 1928 | −16.1% |
| 1932 | +16.8% |
| 1936 | +24.4% |
| 1940 | +12.3% |
| 1944 | +8.7% |
| 1948 | −1.9% |
| 1952 | −21.5% |
| 1956 | −39.5% |
| 1960 | −13.8% |
| 1964 | +5.7% |
| 1968 | −28.7% |
| 1972 | −43.5% |
| 1976 | −27.5% |
| 1980 | −42.1% |
| 1984 | −44.8% |
| 1988 | −20.7% |
| 1992 | −1.3% |
| 1996 | +3.3% |
| 2000 | −12.9% |
| 2004 | −6.3% |
| 2008 | +15.3% |
| 2012 | −4.6% |
| 2016 | +15.2% |
| 2020 | +19.0% |
| 2024 | +14.8% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 14,612 | 10,783 | 25,876 | ||
| D | 15,244 | 10,252 | 26,289 | ||
| D | 10,503 | 7,333 | 20,885 | ||
| R | 8,072 | 8,884 | 17,597 | ||
| D | 9,532 | 6,956 | 16,809 | ||
| R | 6,977 | 7,936 | 15,312 | ||
| R | 4,601 | 6,168 | 12,121 | ||
| D | 4,177 | 3,867 | 9,319 | ||
| R | 3,013 | 3,133 | 9,399 | ||
| R | 2,536 | 3,881 | 6,503 | ||
| R | 1,539 | 4,093 | 5,701 | ||
| R | 1,184 | 3,330 | 5,093 | ||
| R | 1,282 | 2,316 | 3,763 | ||
| R | 836 | 2,209 | 3,158 | ||
| R | 961 | 1,782 | 2,857 | ||
| D | 1,497 | 1,335 | 2,832 | ||
| R | 1,217 | 1,607 | 2,824 | ||
| R | 880 | 2,031 | 2,911 | ||
| R | 1,263 | 1,955 | 3,218 | ||
| R | 1,556 | 1,617 | 3,206 | ||
| D | 1,761 | 1,479 | 3,242 | ||
| D | 2,215 | 1,730 | 3,948 | ||
| D | 2,344 | 1,422 | 3,784 | ||
| D | 2,028 | 1,434 | 3,536 | ||
| R | 1,260 | 1,748 | 3,032 | ||
| R | 825 | 1,597 | 2,794 | ||
| R | 874 | 1,503 | 2,514 | ||
| D | 1,495 | 1,195 | 2,937 | ||
| R | 983 | 1,290 | 2,928 | ||
| R | 1,402 | 1,614 | 3,173 | ||
| R | 1,358 | 2,232 | 3,857 | ||
| D | 1,763 | 1,555 | 3,334 | ||
| D | 3,402 | 245 | 3,647 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
21.5%
German
12.1%
Irish
8.4%
Italian
4.5%
Scottish
3.9%
American
3.4%
French
2.6%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 41.5 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$138,114
Summit County ranks in the top 0.5% of US counties.
Summit County$138,114
Utah$95,166
United States$80,734
Summit County ranks in the top 0.5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
4.9%
Child poverty is below the national average.
Children under 183.3%
Working age (18–64)5.3%
Seniors (65+)5.4%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
85.2%
speak English only
Spanish10.1%
Other Indo-European2.8%
Asian & Pacific Islander1.7%
Other languages0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 49.9% of residents not counted as adherents by any reporting body.
Summit County, anchored by Park City's resort economy and a high share of college-educated transplants, has posted double-digit Democratic margins in recent presidential cycles — a consistent outlier in one of the country's most reliably Republican states.
The Democratic margin here reached eighty-seven points in 1896. Between 2020 and 2024 the county moved four points toward the Republican candidate; the 2024 margin was fifteen points.
A population of 42,970, a 85% non-Hispanic-white share, and a median household income of $138,114 describe the county. The county's voting pattern over the last decade is most similar to that of Fayette County and San Diego County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Summit County, Utah. Akashic. https://akashic.app/county/49043/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More diversifying metro counties
Frequently asked questions
How did Summit County, Utah vote in 2024?
In 2024, Summit County, Utah voted Democratic by 14.8 points (D+15), carried by the Democratic candidate. Out of 25,876 votes cast, 14,612 went Democratic and 10,783 went Republican.
What is Summit County, Utah's political typology?
Akashic places Summit County, Utah in the "Diversifying Metro" typology — Mid-size metropolitan counties growing more diverse and trending Democratic. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 13 times, Republican 20 times, and other 0 times.
When did Summit County, Utah last vote Republican?
The most recent presidential election in which Summit County, Utah voted Republican was 2012.
How many people live in Summit County, Utah?
Summit County, Utah has a population of 42,970 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Summit County, Utah?
Median household income in Summit County, Utah is $138,114 — above the national median of $80,734. The Utah state median is $95,166.
What is the political history of Summit County, Utah?
Akashic tracks 38 presidential elections in Summit County, Utah from 1876 to 2024. Of those, 13 went Democratic and 20 went Republican. The county's typology — "Diversifying Metro" — captures where that record, its demographics, and its recent swing place it among American communities.