In 1859, the United States expelled the Caddo Nation of Louisiana from its Brazos reservation in Texas and relocated it to what would eventually become Canadian County, Oklahoma. Showetat, the last hereditary chief of the Caddos set up his camp near the present Union City, and is considered Canadian County's first permanent resident. The Wichita tribe were relocated to the same part of Indian Territory in 1861. The Treaty of Medicine Lodge gave the land west of the Caddos and Wichitas to the Cheyenne and Arapaho tribes, They moved from Colorado in 1869. The Cheyenne-Arapaho Agency was established in 1870. Canadian County was formed in 1889 as County Four of Oklahoma Territory as part of the Oklahoma Organic Act, which created Oklahoma Territory from part of Indian Territory. It was named after the Canadian River, which runs through the county, and settled by white settlers after the April 22, 1889, land run that expropriated Native American land. It was expanded by a second land run in 1892 and finally, the opening of the Cheyenne and Arapaho lands in 1902. El Reno was chosen as the county seat over competitors Reno City, Frisco, and Canadian City. The county was where the last great battle between the Cheyenne, Arapaho and the United States Army took place.
Geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water. The county lies mostly within the Red Bed Plains, a subregion of the Osage Plains physiographic region, although its northwestern corner is in the Gypsum Hills. The county is drained by the North Canadian River and the Canadian River, which both flow through the county from northwest to southeast. According to a study published by the Oklahoma Geological Survey, the North Canadian River drains about 40 percent of the county, the Canadian River drains about 32 percent and the Cimarron River drains about 27 percent (mostly in the northeastern part of the county. About 1 percent of the county is drained by Sugar Creek, which empties into the Washita River, itself a tributary of the Red River. The North Canadian River enters Canadian County near the northwest corner, flows generally southeast towards the middle of the county, then turns southward to leave the county about north of the southeastern corner. The river length is about. The elevation drops from at the entry to about at the exit. Its named tributaries are Sixmile Creek, Fourmile Creek, Purcell Creek, Shell Creek and Mustang Creek. The Canadian River enters the western border of the county about north of the southwest corner at an elevation of and flows southeast about, where it becomes the southern border of the county. Its course within the county is long, and the elevation where it leaves the county is. Named tributaries include Dry Creek and Boggy Creek, The Cimarron River does not flow through the county, but drains part of the northeastern area via its tributaries: Kingfisher, Dead Indian, Uncle John, Cottonwood, Soldier and Deer Creeks. The Washita River flows more than south of the county, but drains about in the southwest corner of Canadian County.
As of the census of 2000, there were 87,697 people, 31,484 households, and 24,431 families residing in the county. The population density was 98 people per square mile. There were 33,969 housing units at an average density of 38 per square mile. The racial makeup of the county was 87.01% White, 2.16% Black or African American, 4.27% Native American, 2.45% Asian, 0.05% Pacific Islander, 1.35% from other races, and 2.72% from two or more races. 3.86% of the population were Hispanic or Latino of any race. There were 31,484 households out of which 39.80% had children under the age of 18 living with them, 64.30% were married couples living together, 9.70% had a female householder with no husband present, and 22.40% were non-families. 19.20% of all households were made up of individuals and 7.10% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.10. In the county, the population was spread out with 28.00% under the age of 18, 8.20% from 18 to 24, 30.70% from 25 to 44, 23.50% from 45 to 64, and 9.50% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 99.40 males. For every 100 females age 18 and over, there were 97.70 males. The median income for a household in the county was $45,439, and the median income for a family was $51,180. Males had a median income of $35,944 versus $24,631 for females. The per capita income for the county was $19,691. About 5.80% of families and 7.90% of the population were below the poverty line, including 9.70% of those under age 18 and 7.20% of those age 65 or over.
Sundance Airpark is a public use airport located in Canadian County, 11 nautical miles northwest of the central business district of Oklahoma City. This airport is privately owned.
