| Name | Saint Marys County |
| State | Maryland |
| FIPS Code | 24037 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2020) | 113,777 |
| Population Growth Rate(2000-2020) | 8.2% |
| Majority Ethnicity | White 77.92% |
| Public School Majority Ethnicity | White 64% |
| Partisan Voting Index | Republican:+7 |
| Unemployment Rate | 2.9% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 77.92% |
| African American | 14.3% |
| Hispanic | 4.91% |
| Asian | 2.73% |
| Native American | 0.13% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 64.14% |
| African American | 18.36% |
| Hispanic | 7.09% |
| Asian | 2.53% |
| Native American | 0.31% |
| Hawaiin/Pacific Islander | 0.16% |