Douglas County, Colorado ZIP codes
15 ZIP codes are in Douglas County, plus 4 that cross in from neighboring counties. It's part of the Denver-Aurora-Centennial, CO metro area.
- ZIP codes
- 15
- Population in these ZIPs
- 373,996
- Avg. median income
- $152,800population-weighted
- Cities & towns
- 8
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Douglas County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 80104 | Castle Rock | 38,479 | $134,335 | $602,100 |
| 80108 | Castle Rock | 36,730 | $181,049 | $858,300 |
| 80109 | Castle Rock | 28,400 | $155,025 | $646,400 |
| 80116 | Franktown | 5,132 | $146,000 | $1,032,400 |
| 80118 | Larkspur | 5,632 | $158,155 | $933,200 |
| 80124 | Lone Tree | 22,555 | $129,858 | $778,400 |
| 80125 | Littleton | 15,630 | $179,983 | $715,100 |
| 80126 | Littleton | 44,882 | $169,882 | $729,300 |
| 80129 | Littleton | 30,223 | $141,667 | $659,600 |
| 80130 | Littleton | 24,719 | $158,741 | $671,000 |
| 80131 | Louviers | 276 | $107,250 | $523,500 |
| 80134 | Parker | 80,302 | $146,778 | $665,500 |
| 80135 | Sedalia | 4,141 | $136,083 | $920,700 |
| 80138 | Parker | 36,895 | $145,013 | $708,300 |
| 80163 PO Box | Littleton | — | — | — |
ZIP codes partly in Douglas County
These ZIP codes are mostly in a neighboring county but cover part of Douglas County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 80016 | Aurora | Arapahoe County | 68,268 | $150,492 | $730,200 |
| 80106 | Elbert | Elbert County | 4,455 | $136,852 | $718,600 |
| 80112 | Englewood | Arapahoe County | 36,816 | $108,874 | $593,800 |
| 80120 | Littleton | Arapahoe County | 29,725 | $94,296 | $590,500 |
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 and towns in Douglas County
Nearby counties
Frequently asked questions
How many ZIP codes are in Douglas County, Colorado?
15 ZIP codes are mainly in Douglas County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Douglas County?
ZIP codes in Douglas County use the city names Castle Rock, Franktown, Larkspur, Littleton, Lone Tree, Louviers, Parker and Sedalia.
What metro area is Douglas County in?
Douglas County is part of the Denver-Aurora-Centennial, CO metropolitan statistical area.