10th most populous of 29
With 43,109 residents in 2024, Summit County ranks 10th by population among Utah's 29 counties and is home to 1.2% of the state's residents.

Summit County has the highest median household income in Utah ($138,114) and the most expensive homes (median value $1,067,700).
Summit County is home to 43,109 people (2024 estimate) on 1,871 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Pick an indicator to see its long-run evolution.
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 43,109 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 36,324 | 2010 · U.S. Census Bureau |
| Population, 2000 | 29,964 | July 1, 2000 · Census intercensal |
| Change since 2000 | +43.9% | 2000–2024 · Census |
| International migration | +279 | 2024 · Census Vintage 2024 |
| Domestic migration | −327 | 2024 · Census Vintage 2024 |
| Birth rate | 9.7 per 1,000 | 2024 · calculated |
| Death rate | 4.8 per 1,000 | 2024 · calculated |
| Population rank in Utah | 10th of 29 | 2024 · calculated |
| Per capita personal income | $280,510 | BEA, 2024 · official |
| Gross domestic product | $6.1 billion | BEA, current dollars, 2024 · official |
| Median household income | $138,114 | ACS 2020–2024 5-year · official |
| Poverty rate | 4.9% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 59.8% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 9.3% | ACS 2020–2024 5-year · official |
| Median home value | $1,067,700 | ACS 2020–2024 5-year · official |
| Median gross rent | $1,987/month | ACS 2020–2024 5-year · official |
| Median age | 41.5 years | ACS 2020–2024 5-year · official |
| Households | 15,730 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 80.2% | ACS 2020–2024 5-year · official |
Comparable indicators for Summit County, Utah and the United States.
| Indicator | County | Utah | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +1.8% | +7.1% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 9.7 | 13.0 | 10.6 | 2024 |
| Death rate (per 1,000) | 4.8 | 6.2 | 9.1 | 2024 |
| Net migration rate (per 1,000) | -1.1 | 10.4 | 8.2 | 2024 |
| Population density (/mi²) | 23.0 | 42.4 | 96.3 | 2024 |
| Per capita personal income | $280,510 | $67,333 | $73,204 | BEA, 2024 |
| Median household income | $138,114 | $95,166 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 4.9% | 8.5% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 59.8% | 37.7% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 9.3% | 8.9% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $1,067,700 | $489,400 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $1,987/month | $1,496/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 41.5 years | 32.0 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 80.2% | 70.2% | 65.2% | ACS 2020–2024 5-year |
With 43,109 residents in 2024, Summit County ranks 10th by population among Utah's 29 counties and is home to 1.2% of the state's residents.
Its population went from 29,964 in 2000 to 43,109 in 2024, a change of +43.9%, compared with +56.1% for Utah as a whole.
In the year to July 2024 the county recorded 418 births and 207 deaths, so births outnumbered deaths by 211.
Annual Census estimates since 2000 put the county's highest population at 43,182 in 2021. The 2024 figure is 73 lower.
Summit County has about 23.0 residents per square mile of land, ranking 8th of 29 counties; Utah averages 42.4.
With a median household income of $138,114 (ACS 2020–2024 5-year), the county ranks 1st of 29 Utah counties; the state median is $95,166.
Its economy produced $6.1 billion of GDP in 2024 (BEA), 7th largest among 29 Utah counties.
Real GDP grew 2.6% in 2024, adjusted for inflation (BEA, chained 2017 dollars).