Map - Henderson, Nevada (Henderson)

Henderson is a city in Clark County, Nevada, United States, about 16 mi southeast of downtown Las Vegas. It is the second largest city in Nevada, after Las Vegas, with an estimated population of 320,189 in 2019. The city is part of the Las Vegas Valley. Henderson occupies the southeastern end of the valley, at an elevation of 1864 ft.

Henderson is known for its supply of magnesium during World War II. With the decline of magnesium production, the Nevada legislature approved a bill that gave Nevada's Colorado River Commission the authority to purchase the industrial plants, and Henderson was incorporated in 1953. Henderson is the location of Lake Las Vegas.

The township of Henderson first emerged in the 1940s during World War II with the building of the Basic Magnesium Plant. Henderson quickly became the main supplier of magnesium in the United States, which was called the "miracle metal" of World War II. The plant supplied the US War Department with magnesium for incendiary munition casings and airplane engines, frames, and other parts. A quarter of all US wartime magnesium came from the Henderson Plant to strengthen aluminum, using 25% of Hoover Dam's power to separate the metal from its ore by electrolysis. Mayor Jim Gibson's grandfather, Fred D. Gibson, was one of the original engineers sent to Great Britain to learn the secret of creating the "miracle metal" which would help the United States and its allies win the war. The British liaison officer sent to Henderson, Major Charles Ball, had a main thoroughfare named after him. Because of concerns about having a street named “Ball Avenue”, the name was later changed to “Major Avenue”.

Although "born in America's defense", Henderson's future after World War II was uncertain. In 1947, magnesium production was no longer necessary for defense, and most of the Black Mountain Industrial (BMI) Complex's 14,000 employees moved away. Enrollment in the school system was reduced by two thirds, and well over half the townsite houses, built to house plant workers, became vacant. In 1947, the United States War Asset Administration offered Henderson for sale as war surplus property.

In an effort to save the city, the Nevada Legislature spent a weekend visiting Henderson, evaluating the possibility of state administration of Basic Magnesium. Within days of the visit, the legislators unanimously approved a bill that gave Nevada's Colorado River Commission the authority to purchase the industrial plants. Governor Vail Pittman signed the bill on March 27, 1947, helping save Henderson from becoming war surplus property.

With the help of local industry, Henderson was incorporated on April 16, 1953 as the City of Henderson. On May 23, 1953, Henderson, with its population of 7,410, elected Dr. Jim French as the first mayor. Originally only about 13 sqmi in size, the city quickly began to grow, reaching over 94 sqmi in size today.