Carroll County
Also known as Carroll County, Maryland, Carroll County, MD
county in Maryland, United States
Key facts
- Country
- United States
- State
- Maryland
- Founded
- January 19, 1837
- Named after
- Charles Carroll of Carrollton
- Seat
- Westminster
- Largest community
- Eldersburg
- Total
- 453 sq mi (1,170 km )
- Land
- 448 sq mi (1,160 km )
- Water
- 5.1 sq mi (13 km ) 1.1%
- Estimate 2025
- 176,677
- Density
- 386/sq mi (149/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
~20 min read
Article
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.
History