The five largest cities of Nevada by population are Las Vegas, Henderson, Reno, North Las Vegas and Sparks, in order of decreasing population. As of the 2010 U.S. Census, Las Vegas has a population of 583,756 people, Henderson has a population of 257,729 people, Reno has a population of 225,221 people, North Las Vegas has a population of 216,961 people, and Sparks has a population of 90,264 people.
Las Vegas, Henderson and North Las Vegas are located in Clark County, which is the southern-most tip of the state. Clark County is the largest county in Nevada, with a population of over 1.9 million people as of the 2010 census, or 68.85 percent of the entire Nevada population. Reno and Sparks are located in Washoe County, which is a long strip on the state's northwest border with California and Oregon. Washoe County is the second-largest county in Nevada, home to a population of about 421,407, which is 16.99 percent of the total population in the state.
Between 1960 and 2000, Las Vegas was the fastest growing city in the United States. Henderson and North Las Vegas are among the top 20 fastest growing cities as of 2010. Other large cities in Nevada include Sunrise Manor, Paradise, Spring Valley, Enterprise and the capital Carson City.