Nampa is the largest and the fastest growing city in Canyon County, Idaho, USA. The population of Nampa was 81,557 at the 2010 census. Nampa is located about 20 miles (32 km) west of Boise along Interstate 84, and six miles (10 km) west of Meridian. Nampa is part of the Boise metropolitan area. The name "Nampa" came from a Shoshone word whose meaning is either moccasin or footprint.

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