Wabaunsee County (standard abbreviation: WB) is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 7,053. Its county seat is Alma. The county was created by the territorial legislature of Kansas Territory on March 25, 1859, and was named for a chief of the Potawatomi Indians.
According to the U.S. Census Bureau, the county has a total area of 800 square miles (2,100 km), of which 794 square miles (2,060 km) is land and 5.3 square miles (14 km) (0.7%) is water.
Wabaunsee County is part of the Topeka, KS Metropolitan Statistical Area.
As of the census of 2000, there were 6,885 people, 2,633 households, and 1,958 families residing in the county. The population density was 9 people per square mile (3/km²). There were 3,033 housing units at an average density of 4 per square mile (1/km²). The racial makeup of the county was 97.24% White, 0.46% Black or African American, 0.49% Native American, 0.15% Asian, 0.06% Pacific Islander, 0.60% from other races, and 1.00% from two or more races. 1.86% of the population were Hispanic or Latino of any race.
There were 2,633 households out of which 33.50% had children under the age of 18 living with them, 64.30% were married couples living together, 6.30% had a female householder with no husband present, and 25.60% were non-families. 23.00% of all households were made up of individuals and 10.80% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.01.
In the county, the population was spread out with 26.70% under the age of 18, 6.20% from 18 to 24, 26.70% from 25 to 44, 24.80% from 45 to 64, and 15.60% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 102.50 males. For every 100 females age 18 and over, there were 101.30 males.
The median income for a household in the county was $41,710, and the median income for a family was $47,500. Males had a median income of $31,629 versus $23,148 for females. The per capita income for the county was $17,704. About 5.80% of families and 7.30% of the population were below the poverty line, including 8.40% of those under age 18 and 7.90% of those age 65 or over.