| ZIP Code | 80109 |
|---|---|
| City | Castle Rock |
| State | Colorado (CO) |
| County | Douglas County |
| Area Code | 303/720/983 |
| Elevation | 6,702 ft |
| Latitude | 39.372344 |
|---|---|
| Longitude | -104.912085 |
| Timezone | Denver (DST) |
| FIPS | 08035 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 35.8 yrs |
|---|---|
| Avg Household Size | 2.90 |
| Below Poverty | 3.5% ▼ 65% below avg |
| College Grads | 62.3% ▲ 61% above avg |
| Unemployment | 6.3% ▲ 28% above avg |
| No HS Diploma | 31 (0.2%) |
| HS Graduate | 2,092 (12.1%) |
| Some College | 1,363 (7.9%) |
| Associates | 3,034 (17.5%) |
| Bachelors | 1,003 (5.8%) |
| Graduate Degree | 9,787 (56.5%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $148,417 ▲ 94% above avg ↑ 18% since 2019 |
|---|---|
| Median Home Value | $648,900 ▲ 133% above avg ↑ 44% since 2019 |
| Home/Income Ratio | 4.4x (nat avg ~3.5x) |
| Median Rent | $2,245/mo ↑ 52% since 2019 |
| Total Units | 9,598 |
| Vacant Units | 149 |
| Avg HH Size | 2.90 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 9,598 |
|---|---|
| Vacant | 149 |
| Owner Occupied | 79.3% |
| Renter Occupied | 20.7% |
| Avg HH Size | 2.90 |
ZIP code 80109 is located in Castle Rock, Colorado, within Douglas County. With a population of 27,795, this is a moderately populated ZIP code with a relatively young community — the median age is 35.8 years. Economically, 80109 is a upper-middle-income ZIP code: the median household income of $148,417 is significantly above the national average.
Real estate in ZIP code 80109 represents a premium housing market. The median home value of $648,900 is more than double the national average. Renters can expect to pay around $2,245 per month in median rent. Homeownership is strong here — 79.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 44% since 2019.
The population of 80109 is primarily White (79.69%). Residents are highly educated — 62.3% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 3.5%. Household income has grown by 18% since 2019.
The unemployment rate in 80109 stands at 6.3%, which is above the national average. A notably high share of workers — 26% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 68%.
Overall, ZIP code 80109 in Castle Rock, CO is characterized as upper-middle-income, highly educated, a relatively young community, and predominantly owner-occupied. With 27,795 residents, a median household income of $148,417, and a median home value of $648,900, it offers a clear picture of life in this part of Colorado.