| Place Name | Calais |
| Place Type | City |
| ZIP Code(s) | 04619 |
| County | Washington County |
| Area Code(s) | 207 |
| Timezone | (UTC) |
| Population (2022) | 3,132 |
| Population Growth Rate (2010-19) | -1.41% |
| Majority Ethnicity | White 97.45% |
| US Congressional District(s) | Maine 2nd |
| State House Districts | 140 |
| State Senate Districts | 6 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.45% |
| African American | 0.44% |
| Hispanic | 0.84% |
| Asian | 0.47% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.81% |