Calvert County is a coastal couny located near Baltimore in central Maryland. The area of Calvert County is about 345 square miles. The county was set up in 1654; it is populated today by 94 thousand residents. Prince Frederick is the county seat of Calvert County. This map shows the borders of Calvert County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Calvert County.
The borders of Calvert County over the map of Maryland
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