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Compare Castle Rock to Boulder

This post compares Castle Rock, Colorado to Boulder, Colorado across various dimensions, including population, median income, median age, percentage of housing that is rental, percent of households with kids, and other demographics.

Dimension Castle Rock (town) Boulder (city)
Population 57,274 106,271
Income (median) $65,346 $56,858
Home Value (median) $356,600 $600,400
White 91% 87%
Black 1% 1%
Asian 1% 5%
With Kids 47% 18%
Age (median) 34 28
Rentals 23% 51%

Questions and Answers:

Q: Which is more populated, Castle Rock or Boulder?
A: Castle Rock has a smaller population count than Boulder: 57274 compared with 106271 total people.

Q: Do incomes tend to be higher in Castle Rock or in Boulder?
A: Incomes are on average higher in Castle Rock.

Q: Are homes more expensive in Castle Rock or Boulder?
A: Homes tend to be much less expensive in Castle Rock.

Q: Which has a higher percentage of housing rental units?
A: Boulder does. The percentage of rentals differs quite a bit: 23% for Castle Rock versus 51% for Boulder.

Somewhat similar in-state cities, towns, and CDPs to Castle Rock may include: Parker, Windsor, and Dakota-Ridge.

The statistics and analyses on this page are based on data from the U.S. Census American Community Survey.

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