| Place Name | Flagler |
| Place Type | Town |
| ZIP Code(s) | 80815 |
| County | Kit Carson County |
| Area Code(s) | 719 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 454 |
| Population Growth Rate (2010-19) | 1.07% |
| Majority Ethnicity | White 98.2% |
| US Congressional District(s) | Colorado 4th |
| State House Districts | 65 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.2% |
| African American | 0% |
| Hispanic | 0.4% |
| Asian | 0% |
| Native American | 0.8% |
| Hawaiin/Pacific Islander | 0.6% |