Arapahoe County, Colorado (Paperback)

Arapahoe County is the third most populous of the 64 counties of the State of Colorado of the United States. The United States Census Bureau estimates that the county population was 544,282 in 2008, a 10.09% increase since U.S. Census 2000. The county seat is Littleton and the most populous city is Aurora. Arapahoe County is part of the Denver-Aurora Metropolitan Statistical Area and the Denver-Aurora-Boulder Combined Statistical Area. Arapahoe County calls itself "Colorado's First County" since its origins predate the Pike's Peak Gold Rush.