Summit County's estimated 2026 population is 31,391 with a growth rate of -0.4% in the past year according to the most recent United States census data. Summit County is the 20th largest county in Colorado. The 2010 population was 28,075 and has seen a growth of 11.81% since that time.
Data after 2023 is projected based on recent change
Overall: 39.5 years
Female: 39.7 years
Male: 39.3 years
There are 25,971 adults, (4,874 of whom are seniors) in Summit County.
Female: 13,873 (44.7%)
Male: 17,144 (55.3%)
The racial composition of Summit County includes 76.48% White, and smaller percentages for Asian, other race, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 23,723 | 76.48% |
| Two or more races | 6,038 | 19.47% |
| Asian | 486 | 1.57% |
| Other race | 407 | 1.31% |
| Black or African American | 129 | 0.42% |
| Native Hawaiian or Pacific Islander | 122 | 0.39% |
| Native American | 112 | 0.36% |
Summit County's average per capita income is $57,099. Household income levels show a median of $109,773. The poverty rate stands at 7.69%.
Name | Median | Mean |
|---|---|---|
| Married Families | $158,203 | - |
| Families | $138,295 | $171,403 |
| Households | $109,773 | $147,734 |
| Non Families | $73,183 | $117,299 |
Average Income
Median Household Income
Poverty Rate