Carroll County, Maryland
Carroll County, Maryland | |
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Carroll County Courthouse in Westminster | |
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Flag Seal | |
Location within the U.S. state of Maryland | |
| Coordinates: 39°34′N 77°01′W / 39.57°N 77.02°W | |
| Country | United States |
| State | Maryland |
| Founded | January 19, 1837 |
| Named after | Charles Carroll of Carrollton |
| Seat | Westminster |
| Largest community | Eldersburg |
| Area | |
• Total | 453 sq mi (1,170 km2) |
| • Land | 448 sq mi (1,160 km2) |
| • Water | 5.1 sq mi (13 km2) 1.1% |
| Population (2020) | |
• Total | 172,891 |
• Estimate (2023) | 176,639 |
| • Density | 386/sq mi (149/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional districts | 2nd, 3rd |
| Website | carrollcountymd |
Carroll County is a county located in the U.S. state of Maryland. As of the 2020 United States census, the population was 172,891. Its county seat is Westminster. The county is part of the Central Maryland region of the state. Carroll County is included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area. While predominantly rural, southern areas of the county have become increasingly suburban in recent years.