Pennington County is nestled in the state of South Dakota. With a land mass of 2784 square miles, Pennington County is one of the largest counties in the state, while in population it is at the top with 8,856 inhabitants. Pennington County's population density of urban makes it one of the least primarily populated areas in the state. The county's largest city is Rapid City, with a population of 79,749.
Pennington County is one of the most wealthy regions in the state. The median income for Pennington County residents is $37,734, putting the area in in the top fifth of all counties in South Dakota. In keeping with this, the average house price in Pennington County is $85,772, well above the state average of $72,289.
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