| Place Name | Sedan |
| Place Type | City |
| ZIP Code(s) | 67361 |
| County | Chautauqua County |
| Area Code(s) | 620 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,447 |
| Population Growth Rate (2010-19) | -11.03% |
| Majority Ethnicity | White 93.63% |
| US Congressional District(s) | Kansas 4th |
| State House Districts | 12 |
| State Senate Districts | 14 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.63% |
| African American | 3.87% |
| Hispanic | 1.75% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.75% |