There are 14 zip codes in Douglas County, Colorado. The most populated is 80134, located in Parker. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
8013475,383Parker
8012643,691Littleton
8013836,113Parker
8010435,084Castle Rock
8010833,259Castle Rock
8012929,974Littleton
8010927,852Castle Rock
8013025,551Littleton
8012422,567Littleton
8012513,048Littleton
801185,940Larkspur
801164,884Franktown
801354,061Sedalia
80131250Louviers
showing: 14 rows

Zip Codes in Douglas County, Colorado by Population (2024)