Jefferson County is lying in the state of Montana. With a land mass of 1658 square miles, Jefferson County is one of the smaller counties in the state, while in population it is near the top with 1,004 inhabitants. Jefferson County's population density of suburban makes it one of the most mostly populated areas in the state. The county's largest city is Clancy, with a population of 4,199.

Jefferson County is one of the most affluent regions in the state. The median income for Jefferson County residents is $41,328, putting the region in at the top of all counties in Montana. Reflecting this, the average home price in Jefferson County is $117,271, well above the state average of $99,823.    Continued below...