what county is fredericktown pa?
<answer> Washington County <context> Fredericktown, Pennsylvania. Fredericktown is a census-designated place located in East Bethlehem Township, Washington County in the state of Pennsylvania. The community was part of the Fredericktown-Millsboro CDP for the 2000 census, but was split into two separate CDPs for the 2010 census, the other community being Millsboro.