ZIP Code 80109 Map
Census ZIP Code Tabulation Area 80109 in Castle Rock, CO (Douglas County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 80109 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
28,400
Households
9,728
Median household income
$155,025
Median age
36.9 years
Median home value
$675,500
Median gross rent
$2,304/mo
Owner-occupied homes
81.4%
Bachelor's degree or higher
57.8%
Below poverty level
3.3%
Land area
26 sq mi
Population density
1,093 / sq mi