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Zip Code 80108 — Castle Rock, CO

80108 is a ZIP Code associated with Castle Rock, CO, located within Douglas. The postal region supports an estimated population of 36,730 residents across Data Pending housing units, with a population density of 401.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.444410, -104.853210)

Data MetricLocal Statistic
Postal / Zip Code80108
Primary CityCastle Rock
State / ProvinceCO
CountyDouglas
Total Population36,730
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density401.8 people/sq mi
TimezoneAmerica/Denver

How 80108 Compares

MetricZIP 80108Douglas CountyCO State Average
Population36,730373,9965,862,421
Median IncomeData PendingN/AN/A
Population Density401.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 80134Parker4.7 mi80,302N/A
Zip 80109Castle Rock6.1 mi28,400N/A
Zip 80124Lone Tree6.4 mi22,555N/A
Zip 80130Littleton7.0 mi24,719N/A
Zip 80131Louviers8.6 mi276N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →