Who lives in Castle Rock
The population is predominantly non-Hispanic white, with growing Hispanic and Asian communities driven by young families relocating from Denver and out of state.
With around 77,000 residents, Castle Rock has a profile quite different from Colorado's larger cities. The majority is non-Hispanic white, with an increasing presence of Hispanic families (primarily of Mexican origin) and a small but visible Asian community, especially Indian and Chinese professionals who work at the Denver Tech Center.
The median age is low by American standards, with many families with school-age children, which helps explain demand for homes in new neighborhoods and continuous school growth. Median household income is high, well above state and national averages.
English is the dominant language in daily life, with Spanish heard in businesses and schools. The immigrant community is small in absolute numbers but includes Mexicans, Indians, Filipinos, Chinese, and British nationals, forming discrete pockets without clearly defined ethnic neighborhoods.
- English
- Spanish
- Hindi
- Mandarin
- Tagalog
- Protestant Christianity
- Catholicism
- Mormons (LDS)
- No religion
- Hinduism
