| Place Name | Foss |
| Place Type | Town |
| ZIP Code(s) | 73647 |
| County | Washita County |
| Area Code(s) | 580 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 162 |
| Population Growth Rate (2010-19) | -33.11% |
| Majority Ethnicity | White 88.07% |
| US Congressional District(s) | Oklahoma 3rd |
| State House Districts | 55 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.07% |
| African American | 0% |
| Hispanic | 4.59% |
| Asian | 0.92% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.42% |