Summit County, Utah Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 10th-largest in Utah
The population of Summit County, Utah is 42,709 as of the 2023 American Community Survey, making it the 10th-largest county in Utah. The median household income is $137,058, the median home value is $1,000,400, and the median age is 41.0.
The population of Summit County has grown 18.1% since 2010 (36,502 → 43,109), a +1.20% annualized rate.
42,709
Population
+1.20%
Annual growth
23
People / sq mi
$137,058
Median Income
$1,000,400
Median Home Value
Summit County covers 1,871 sq mi of land at 22.8 people per square mile.
About Summit County, UT
Housing cost is the defining feature of Summit County: the median home is valued at $1,000,400. Summit County is a county in Utah with a population of 42,709. It is the #10-largest of all counties in Utah nationally.
Earnings sit at the high end: a median household income of $137,058, above the US median of $78,538. Poverty is among the lowest of comparable US counties, at 2.8% — below the national 12.4%. Housing is expensive: the median home is worth $1,000,400, with typical rent around $1,969.
The population is unusually well-credentialed for US counties — 58.1% of adults have a four-year degree, above the national 35.0%. An unusually large 24.2% of workers are remote, above the national 14.0%, and the average commute runs about 22 minutes each way.
High housing values reframe the income picture in Summit County — even solid earnings stretch less against home prices and rents at this level.
Summit County Population History (2010-2024)
The county of Summit County had a population of 36,502 in 2010 and 43,109 in 2024, a 18.1% growth over 14 years. The peak was 43,182 in 2021. Average annual growth rate: 1.20%.
43,109
Population (2024)
36,502
Population (2010)
43,182
Peak (2021)
1.20%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 36,502 |
| 2011 | 37,438 |
| 2012 | 37,886 |
| 2013 | 38,447 |
| 2014 | 39,144 |
| 2015 | 39,675 |
| 2016 | 40,564 |
| 2017 | 41,375 |
| 2018 | 41,879 |
| 2019 | 42,081 |
| 2020 | 42,485 |
| 2021 | 43,182 |
| 2022 | 43,134 |
| 2023 | 42,939 |
| 2024 | 43,109 |
Race & Ethnicity
| White | 86.7% |
| Black or African American | 0.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
41.0
Median Age
48.6%
Female
51.4%
Male
14.7%
Age 65+
Age Distribution
Children (under 15): 19.1% · Seniors (65+): 14.7%
Income & Poverty
| Median household income | $137,058+$45,308 vs state |
| Mean household income | $208,695 |
| Per-capita income | $74,755 |
| Poverty rate | 2.8%-2.9% vs state |
| Unemployment rate | 1.4% |
| Employment-to-population | 67.7% |
Top Industries by Employment
The largest employment sector in Summit County is professional & business services, accounting for 20.1% of workers.
How residents commute
2.3%
Drive alone
1.2%
Carpool
63.7%
Public transit
24.2%
Work from home
22.1 min
Avg commute
Housing
$1,000,400+$545,400 vs state
Median home value
$1,969
Median rent
80.4%
Homeownership rate
26,206
Total housing units
55.2%
Occupied
44.8%
Vacant
19.6%
Renter-occupied
Social & access
93.0%
With health insurance
98.2%
With broadband internet
49.1%
Foreign-born
4.9%
Veterans (18+)
5.9%
With a disability
85.1%
Speak language other than English at home
Education
95.0%
High School+
58.1%
Bachelor's+
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Part of Utah
Metro areas in Utah
County rankings
Frequently Asked Questions
Summit County, Utah has a population of 42,709 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 10th-largest county in Utah. Population density is 23 people per square mile.
The population of Summit County has grown 18.1% since 2010 (36,502 → 43,109), a +1.20% annualized rate.
The median household income in Summit County, Utah is $137,058, with mean (average) household income of $208,695 and per-capita income of $74,755. 2.8% of residents live below the federal poverty level.
In Summit County, the largest racial and ethnic groups are White (86.7%), Hispanic or Latino (1.4%), Black or African American (0.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Summit County, Utah is 41.0 years. Residents are 48.6% female and 51.4% male.
The median home value in Summit County is $1,000,400 and median monthly rent is $1,969. 80.4% of occupied housing units are owner-occupied. The county has 26,206 total housing units, 44.8% of which are vacant.
The largest employment sector in Summit County, Utah is professional, scientific, and management services, employing 20.1% of workers. The unemployment rate is 1.4%.
Salt Lake City is among the largest cities associated with Summit County, Utah, with a population of 203,888.
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Statewide data for Utah
Population, race, income, age, and trends across Utah
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.