Westminster is a city in northern Maryland, United States. A suburb of Baltimore, it is the seat of Carroll County. The city's population was 18,590 at the 2010 census. Westminster is an outlying community within the Baltimore-Towson, MD MSA, which is part of a greater Washington-Baltimore-Northern Virginia, DC-MD-VA-WV CSA.
William Winchester (1706-1790) purchased approximately 167 acres of land called White's Level in 1754 which became known as the city of Winchester. The Maryland General Assembly later changed the name of the town to Westminster to avoid confusion with Winchester, the seat of nearby Frederick County, Virginia.
On June 28, 1863, the cavalry skirmish known as Corbit's Charge was fought in the streets of Westminster, when two companies of Delaware cavalry attacked a much larger Confederate force under General J.E.B. Stuart, during the Gettysburg Campaign.
In April 1865, Joseph Shaw, newspaper editor, had his presses wrecked and his business destroyed, and was subsequently beaten and stabbed to death by four men in Westminster, allegedly because of an anti-Lincoln editorial that was published the week before the actual assassination. In a later trial at the Westminster Court House the four men were acquitted; the reason cited was "self-defense".
Since 1868, Westminster has held an annual Memorial Day parade, which is the longest continuously running Memorial Day parade in the country.
Just north of Westminster is the farm at which Whittaker Chambers hid the so-called "pumpkin papers."
A historic marker states that Westminster was the first place in the nation to offer Rural Free Delivery postal service.
Westminster is the birthplace of Sargent Shriver (1915–2011), the Democratic candidate for Vice President of the United States in 1972, and the first director of the Peace Corps.