In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles. In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mileLouisiana Purchase for 2.83 cents per acre. Explorers in the early 19th century came across abandoned mining sites along a creek south of the Marais des Cygnes river. The background of these early miners remains a mystery; but, it inspired early residents of the region to name this waterway "Mine Creek."
Geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and is water.
Linn County is included in the Kansas City, MO-KS Metropolitan Statistical Area. As of the 2000 census, there were 9,570 people, 3,807 households, and 2,748 families residing in the county. The population density was 16 people per square mile. There were 4,720 housing units at an average density of 8 per square mile. The racial makeup of the county was 97.50% White, 0.63% Black or African American, 0.48% Native American, 0.14% Asian, 0.04% Pacific Islander, 0.16% from other races, and 1.06% from two or more races. Hispanic or Latino of any race were 0.91% of the population. There were 3,807 households, out of which 28.90% had children under the age of 18 living with them, 62.70% were married couplesliving together, 6.20% had a female householder with no husband present, and 27.80% were non-families. 24.00% of all households were made up of individuals, and 13.00% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.94. In the county, the population was spread out, with 25.00% under the age of 18, 6.70% from 18 to 24, 24.30% from 25 to 44, 25.70% from 45 to 64, and 18.30% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 100.00 males. For every 100 females age 18 and over, there were 97.60 males. The median income for a household in the county was $35,906, and the median income for a family was $42,571. Males had a median income of $31,720 versus $22,287 for females. The per capita income for the county was $17,009. About 7.80% of families and 11.00% of the population were below the poverty line, including 14.20% of those under age 18 and 9.60% 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 2004, when voters approved the sale of alcoholic liquor by the individual drink with a 30 percent food sales requirement.
Linn County is divided into eleven townships. None of the cities within the county are considered governmentally independent, and all figures for the townships include those of the cities. 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.
