MD: Washington County
Area: 467 mi²
Population: 149,588 (2013)
County seat: Hagerstown
Colleges and Universities: Hagerstown Community College, Kaplan University - Hagerstown, Award Beauty School
The western portions of Maryland (including present Washington County) were incorporated into Prince George's County in 1696. This original county included six current counties. The first to be created was Frederick, separated from Prince George's County in 1748.
Washington County was formed on September 6, 1776, by the division of Frederick County. At the same time, a portion of Frederick County became part of the newly created Montgomery County along with portions from Prince George's County and Charles' County, and was named for General Richard Montgomery. Washington County as created included land later to become Allegany County (created in 1789) and Garrett County (included in Allegany County when it was created in 1789, but separated from Allegany County in 1872). Washington County thus originally included the entire western part of the state.
A number of properties in the county are listed on the National Register of Historic Places