Castle Pines city, Colorado Demographics & Population 2026

Population Overview

Castle Pines city is a small city located in Colorado. The total population is 12,573. It ranks as the 58th most populous out of 471 cities and towns in Colorado.

Age Demographics

The median age in Castle Pines city is 43.5 years. This is 16% higher than the state median of 37.5 years.

Economy, Income & Housing

The median household income in Castle Pines city is $189,918. This is 105% higher than the state median of $92,470. Compared to the national median of $78,538, household income here is 142% higher. The poverty rate stands at 4.7%. This is 49% lower than the state poverty rate of 9.4%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.6%. This is 43% lower than the state rate of 4.5%. The median home value is $827,900. Housing costs are 65% higher than the state median of $502,200. The home-value-to-income ratio is 4.4x. 84.1% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 66.3%.

Race & Ethnicity

The largest racial or ethnic group in Castle Pines city is White (non-Hispanic), making up 78.2% of the population. Hispanic or Latino residents account for 10.2%. The Hispanic or Latino population (10.2%) is well below the state average of 22.2%.

Education

69.9% of residents aged 25 and older hold a bachelor's degree or higher. This places Castle Pines city in the top 10% of all cities in the state for educational attainment. This is 56% 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 99.2%. Notably, 24.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Castle Pines city, Colorado is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Colorado state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 471 Census-designated places in Colorado. For official data, visit data.census.gov.