Summit County, Colorado Demographics 2026

Population Overview

Summit County is located in Colorado with a total population of 30,857. It is the 19th most populous county out of 64 in Colorado.

Age Demographics

The median age in Summit County is 39.2 years. This is 5% higher than the state median of 37.5 years.

Economy, Income & Housing

The median household income in Summit County is $106,255. This is 15% higher than the state median of $92,470. Compared to the national median of $78,538, household income here is 35% higher. The poverty rate stands at 7.4%. This is 21% lower than the state poverty rate of 9.4%. The unemployment rate is 3.3%. This is 26% lower than the state rate of 4.5%. The median home value is $850,700. Housing costs are 69% higher than the state median of $502,200. The home-value-to-income ratio of 8.0x suggests that housing affordability is a significant concern for many residents. 69.2% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 66.3%.

Race & Ethnicity

The largest racial or ethnic group in Summit County is White (non-Hispanic), making up 74.9% of the population. Hispanic or Latino residents account for 16.9%. The Black or African American population (0.4%) is well below the state average of 3.8%. The Asian population (1.5%) is well below the state average of 3.2%.

Education

52.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 17% higher than the state rate of 44.7%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.9%. Notably, 20.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.