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is a city in and the county seat of Cascade County, Montana, United States. The population was 56,690 at the 2000 census. It is the principal city of the 'Great Falls, Montana Metropolitan Statistical Area', which encompasses all of Cascade County. Great Falls takes its name from the series of waterfalls that the Lewis and Clark Expedition had to portage around, requiring 31 days of arduous labor, in their 1805-06 exploration of the Louisiana Purchase. Two undeveloped parts of their portage route are landmarked within the Great Falls Portage National Historic Landmark. The city is home to the C. M. Russell Museum Complex, the University of Great Falls, Giant Springs, the Roe River (world's shortest river), and the Montana School for the Deaf and the Blind, as well as the Great Falls Voyagers minor league baseball (formerly known as the Great Falls White Sox) team. The local newspaper is the
. Great Falls is known as the "Electric City" due to the five hydroelectric dams that are in the nearby vicinity along the Missouri River.
A Coldwell Banker Home Price Comparison Index listed Great Falls as the most affordable area of 348 markets in the US, Canada, and Puerto Rico.
As of the census of 2000, there were 56,690 people, 23,834 households, and 14,848 families residing in the city. The population density was 2,909.1 people per square mile (1,123.0/km²). There were 25,250 housing units at an average density of 1,295.7/sq mi (500.2/km²). The racial makeup of the city was 89.96% White, 0.95% African American, 5.09% Native American, 0.86% Asian, 0.09% Pacific Islander, 0.60% from other races, and 2.45% from two or more races. Hispanic or Latino of any race were 2.39% of the population.
There were 23,834 households out of which 30.1% had children under the age of 18 living with them, 47.4% were married couples living together, 11.1% had a female householder with no husband present, and 37.7% were non-families. 31.9% of all households were made up of individuals and 12.4% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.92.
In the city the population was spread out with 24.9% under the age of 18, 9.0% from 18 to 24, 27.7% from 25 to 44, 22.7% from 45 to 64, and 15.7% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 94.2 males. For every 100 females age 18 and over, there were 91.4 males.
The median income for a household in the city was $32,436, and the median income for a family was $40,107. Males had a median income of $29,353 versus $20,859 for females. The per capita income for the city was $18,059. About 11.1% of families and 14.5% of the population and 11.1% were below the poverty line, including 20.3% of those under the age of 18 and 9.2% of those 65 and older.