There are 10 US Post Offices in Coconino County serving a total of 116,931 residents equating to 11,693 residents per post office. It's estimated that approximately 186,635 packages are handled across the 10 county post offices annually. Coconino County is a county located in the north central part of the U.S. state of Arizona. The population was 134,421 at the 2010 census. The county seat is Flagstaff. The county takes its name from Cohonino, a name applied to the Havasupai. It is the second largest county by land area in the 48 contiguous United States, behind San Bernardino County, California, with its 18,661 square miles (48,300 km2) making it larger than each of the nine smallest states. Coconino County comprises the Flagstaff, AZ Metropolitan Statistical Area. Coconino County contains Grand Canyon National Park, the Havasupai Nation, and parts of the Navajo Nation, Hualapai Nation, and Hopi Nation. It has a relatively large Native American population at nearly 30% of the county's total population, being mostly Navajo with smaller numbers of Havasupai, Hopi, and others. The county was the setting for George Herriman's early-20th-century Krazy Kat comic strip."