| Name | Calvert County |
| State | Maryland |
| FIPS Code | 24009 |
| County Seat | Prince Frederick |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 94,828 |
| Population Growth Rate(2020-2024) | 2.15% |
| Majority Ethnicity | White 79.89% |
| Public School Majority Ethnicity | White 66% |
| Partisan Voting Index | Republican:+5 |
| Unemployment Rate (May 2026) | 4.2% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 410 / 443 / 667 / 240 / 301 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 79.89% |
| African American | 12.77% |
| Hispanic | 5.15% |
| Asian | 1.91% |
| Native American | 0.22% |
| Hawaiin/Pacific Islander | 0.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 65.94% |
| African American | 13.65% |
| Hispanic | 8.35% |
| Asian | 1.48% |
| Native American | 0.18% |
| Hawaiin/Pacific Islander | 0.11% |