Contra Costa County, California covers an area of approximately 782 square miles with a geographic center of 37.91709338°(N), -121.90060234°(W).
These are the far north, south, east, and west coordinates of Contra Costa County, California, comprising a rectangle that encapsulates it. Please note that not all coordinates inside this rectangle will fall inside of Contra Costa County, California, as it (most likely) doesn't fill up the entire rectangle.
According to data gathered by the Shuttle Radar Topography Mission. The lowest elevation in Contra Costa County is -30 meters (-98 feet). This ranks Contra Costa County 8th in terms of lowest elevations when compared to a total of 58 counties in California.
Contra Costa County's highest elevation is 680 meters (2,231 feet) which ranks it 51st in terms of highest elevations when compared to a total of 58 counties in California.