City in Douglas County, Colorado · 9.6 sq mi · 1,726 people per sq mi
About 17,000 people live in Castle Pines. The typical household earns $191,229, and the median resident is 43.6 years old.
2026 projection
From 11,207 in 2020
Poverty rate 6.86%
Men 40.8 · Women 44.9
2010–2026
16,557
2026 projection
47.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
16,557
2026 projection
47.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 16,557 | +974 | 6.25% |
|---|---|---|---|
| 2025 | 15,583 | +478 | 3.16% |
| 2024 | 15,105 | +349 | 2.37% |
| 2023 | 14,756 | +1,267 | 9.39% |
| 2022 | 13,489 | +1,186 | 9.64% |
| 2021 | 12,303 | +1,096 | 9.78% |
| 2020 | 11,207 | +280 | 2.56% |
| 2019 | 10,927 | +162 | 1.50% |
| 2018 | 10,765 | -14 | 0.13% |
| 2017 | 10,779 | -3 | 0.03% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 134 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 15 residents
68% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 68% | 69% | 68% |
| Never married | 21% | 23% | 18% |
| Divorced | 8% | 4% | 11% |
| Widowed | 2% | 2% | 3% |
| Separated | 1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau