Coos County, OR is 1,806 sq miles (4,678 km²).
Coos County, NH's area is 1,831 square miles.
Coos County which occupies all of the northern New Hamshire Panhandle and is the largest County in area has a total area of 1,831 square miles.
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Jackson county is 100.6 square miles
Marquette County, Michigan is 3,425 square miles.
Onondaga County, NY is 806 square miles.
Darlington County, SC is 567 square miles.
Tillamook County, Oregon is 1,133 square miles.
Lincoln County is 4 831 square miles.
Hennepin County, Minnesota is 606 square miles.
Rockwall County: 129 square miles.
Fulton County, GA's area is 534.75 square miles.