Castle Rock, CO ZIP codes

Castle Rock, Colorado has 3 ZIP codes. They are in Douglas County.

Population in these ZIPs: 103,609
Avg. median income: $156,600population-weighted
Typical home value: $705,100population-weighted
Metro area: Denver-Aurora-Centennial, CO

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Castle Rock, CO ZIP codes list

Castle Rock, CO ZIP codes
ZIP code	County	Population	Median income	Typical home value
80104	Douglas County	38,479	$134,335	$602,100
80108	Douglas County	36,730	$181,049	$858,300
80109	Douglas County	28,400	$155,025	$646,400

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Castle Rock

Franktown 9 mi
Louviers 11 mi
Lone Tree 11 mi
Parker 11 mi
Larkspur 13 mi
Littleton 16 mi
Elizabeth 16 mi
Sedalia 18 mi
Palmer Lake 18 mi
Buffalo Creek 18 mi
Englewood 19 mi
Monument 20 mi

Frequently asked questions

What is the ZIP code for Castle Rock, CO?

Castle Rock, CO has 3 ZIP codes: 80104, 80108 and 80109.

What county is Castle Rock, Colorado in?

Castle Rock ZIP codes are in Douglas County.