For millennia, the land now known as Kansas was inhabited by Native Americans. It was visited by the explorer DeSoto in 1537, In 1803, most of modern Kansas was secured by the United States as part of the Louisiana Purchase. In 1854, the Kansas Territory was organized, then in 1861 Kansas became the 34th U.S. state. Cowley County was officially organized as a county, but reserved for the Osage Indians, by the Kansas Legislature in March 1867, originally named Hunter County for Robert Mercer Taliaferro Hunter, a Virginia Representative and Senator to Congress and Speaker of the House in the twenty-sixth Congress. In 1870, the county was renamed for Matthew Cowley, First Lieutenant in Company I, 9th Kansas Cavalry, who died at Little Rock, Arkansas, on October 7, 1864. Officially opened for settlement July 15, 1870, there was a lengthy and bitter disagreement between the towns of Winfield and Cresswell over the possession of the county seat of government. Finally settled after two special elections and numerous petitions to the Governor and Legislature, Winfield was determined to be the county seat and a courthouse was constructed in 1873 at a cost of $11,500.
21st century
In 2010, the Keystone-Cushing Pipeline was constructed north to south through Cowley County. Controversy arose from the Kansas legislature's decision to grant the pipeline a ten-year exemption from property taxes; it was estimated that this would mean $15 million per year in lost revenue to the six counties through which the pipeline passed. The counties were unsuccessful in an attempt to eliminate the exemption.
Geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water.
Cowley County comprises the Arkansas City-Winfield, KS Micropolitan Statistical Area, which is included in the Wichita-Arkansas City-Winfield, KS Combined Statistical Area. As of the U.S. Census in 2000, there were 36,291 people, 14,039 households, and 9,616 families residing in the county. The population density was 32 people per square mile. There were 15,673 housing units at an average density of 14 per square mile. The racial makeup of the county was 90.13% White, 2.70% Black or African American, 1.96% Native American, 1.53% Asian, 0.01% Pacific Islander, 1.36% from other races, and 2.30% from two or more races. Hispanic or Latino of any race were 3.59% of the population. There were 14,039 households, out of which 32.20% had children under the age of 18 living with them, 55.20% were married couples living together, 9.60% had a female householder with no husband present, and 31.50% were non-families. 27.90% of all households were made up of individuals, and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.00. In the county, the population was spread out, with 26.00% under the age of 18, 9.90% from 18 to 24, 26.00% from 25 to 44, 22.20% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 95.70 males. For every 100 females age 18 and over, there were 94.20 males. The median income for a household in the county was $34,406, and the median income for a family was $43,636. Males had a median income of $31,703 versus $21,341 for females. The per capita income for the county was $17,509. About 9.20% of families and 12.90% of the population were below the poverty line, including 17.00% of those under age 18 and 11.20% of those age 65 or over.
Government
Presidential elections
Laws
Following amendment to the Kansas Constitution in 1986, the county remained a prohibition, or "dry", county until 1996, when voters approved the sale of alcoholic liquor by the individual drink without a food sales requirement.
Cowley County is divided into twenty-five townships. The cities of Arkansas City and Winfield are considered governmentally independent and are excluded from the census figures for the townships. In the following table, the population center is the largest city included in that township's population total, if it is of a significant size.