| Place Name | Upper Kalskag |
| Place Type | City |
| ZIP Code(s) | 99559 99607 |
| County | Bethel Census Area |
| Area Code(s) | 907 |
| Timezone | Alaska Standard Time (AKST) |
| Population (2022) | 228 |
| Population Growth Rate (2010-19) | 0.95% |
| Majority Ethnicity | Native American 0% |
| US Congressional District(s) | Alaska At-Large |
| State House Districts | 38 |
| State Senate Districts | S |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 6.4% |
| African American | 0.49% |
| Hispanic | 93.1% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |