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 mile Louisiana Purchase for 2.83 cents per acre.
According to the U.S. Census Bureau, the county has a total area of 572 square miles (1,480 km2), of which 571 square miles (1,480 km2) is land and 1.2 square miles (3.1 km2) (0.2%) is water.[6] The Wolf River has its source in the county.[7]Brown State Fishing Lake, formerly known as "Brown County State Park" is in the county, 8 miles (13 km) east of Hiawatha.
There were 4,318 households, out of which 31.40% had children under the age of 18 living with them, 55.80% were married couples living together, 9.20% had a female householder with no husband present, and 31.70% were non-families. 28.80% of all households were made up of individuals, and 15.70% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.99.
In the county, the population was spread out, with 26.40% under the age of 18, 7.40% from 18 to 24, 24.00% from 25 to 44, 22.70% from 45 to 64, and 19.50% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 93.50 males. For every 100 females age 18 and over, there were 89.80 males.
The median income for a household in the county was $31,971, and the median income for a family was $39,525. Males had a median income of $29,163 versus $19,829 for females. The per capita income for the county was $15,163. About 10.60% of families and 12.90% of the population were below the poverty line, including 16.40% of those under age 18 and 11.80% of those age 65 or over.
Government
Presidential elections
Presidential election results
United States presidential election results for Brown County, Kansas[15]
Like all of Kansas outside the eastern cities, Brown County is overwhelmingly Republican, although its history of Yankee settlement means it has been thus for longer than certain other parts of the state. Brown was Alf Landon’s strongest county in his home state during his disastrous 1936 presidential campaign. FDR was never to win so much as 42 percent of the vote in any of his four Presidential elections; indeed no Democratic presidential nominee has ever won a majority in Brown County, with the highest percentage being 47 percent by William Jennings Bryan in 1896. A mortally divided Republican Party allowed Woodrow Wilson to win a plurality in 1912 with under 37 percent of the county’s vote – nonetheless since 1968 no Democrat has reached even that percentage.
Laws
Following amendment to the Kansas Constitution in 1986, the county remained a prohibition, or "dry", county until 2000, when voters approved the sale of alcoholic liquor by the individual drink without a food sales requirement.[16]
Brown County is divided into ten townships. The cities of Hiawatha, Horton, and Sabetha 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 (or cities) included in that township's population total, if it is of a significant size.
^"Map of Wet and Dry Counties". Alcoholic Beverage Control, Kansas Department of Revenue. November 2006. Archived from the original on October 8, 2007. Retrieved December 28, 2007.
