Natrona County, Wyoming

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Natrona County is a county located in the U.S. state of Wyoming. As of the 2000 census, the population was 66,533. Its county seat is Casper[1]. It is included in the Casper, Wyoming metropolitan statistical area which encompasses all of Natrona County. The center of population of Wyoming is located in Natrona County, in the town of Alcova.[2]



Natrona County was initially organized in the year 1888. The first settlement occurred in the Casper area in the late 19th century.[3]


According to the U.S. Census Bureau, the county has a total area of 5,376 square miles (13,923 km²), of which 5,340 square miles (13,830 km²) is land and 36 square miles (93 km²) (0.67%) is water.

Geographic features

Adjacent counties

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