Jefferson County is located in the state of Colorado. With a land mass of 778 square miles, Jefferson County is one of the smaller counties in the state, while in terms of population it is at the top with 52,705 inhabitants. Jefferson County's population density of urban makes it one of the least predominantly populated areas in the state. The county's largest city is Arvada, with a population of 120,321.

Jefferson County is one of the most affluent regions in the state. The median income for Jefferson County residents is $57,952, putting the region in in the top fifth of all counties in Colorado. As a reflection this, the average house value in Jefferson County is $189,419, slightly above the state average of $172,040.    Continued below...