City facts
Castle Rock zip codes
3 zip codes cover Castle Rock: 80104, 80108, 80109.
Zip code map
Map of 3 places loads as you scroll.
80104
- Residents
- 36,461
- Median income
- $131,359
- Home value
- $586,800
- Rent
- $1,816
About 19% of this zip is in Castle Rock · 70.7 sq mi
80108- Residents
- 35,485
- Median income
- $178,670
- Home value
- $813,500
- Rent
- $1,995
About 22% of this zip is in Castle Rock · 35.3 sq mi
80109- Residents
- 27,795
- Median income
- $148,417
- Home value
- $648,900
- Rent
- $2,245
About 49% of this zip is in Castle Rock · 26 sq mi
Questions
What zip codes are in Castle Rock?
80104, 80108, 80109. Some also cover parts of neighboring areas.
What is the most populated zip code in Castle Rock?
80104, with about 36,461 residents.
Are zip codes the same as Census ZCTAs?
Almost. The Census Bureau’s ZIP Code Tabulation Areas approximate USPS zip codes so statistics can be published for them; PO box–only zips have no area and aren’t listed.
Source: U.S. Census Bureau 2020 ZIP Code Tabulation Areas, 2023 Gazetteer and ACS 2019–2023.