Logan County (standard abbreviation: LG) is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 2,756. The largest city and county seat is Oakley. The county was named for Gen. John A. Logan.
According to the U.S. Census Bureau, the county has a total area of 1,073 square miles (2,780 km), of which 1,073 square miles (2,780 km) is land and 0.1 square miles (0.26 km) (0.01%) is water.
At the 2000 census, there were 3,046 people, 1,243 households and 856 families residing in the county. The population density was 3 per square mile (1/km²). There were 1,423 housing units at an average density of 1 per square mile (1/km²). The racial makeup of the county was 96.72% White, 0.59% Black or African American, 0.16% Native American, 0.20% Asian, 0.72% from other races, and 1.61% from two or more races. 1.64% of the population were Hispanic or Latino of any race.
There were 1,243 households of which 29.50% had children under the age of 18 living with them, 59.30% were married couples living together, 6.30% had a female householder with no husband present, and 31.10% were non-families. 28.60% of all households were made up of individuals and 14.80% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.98.
Age distribution was 25.40% under the age of 18, 7.20% from 18 to 24, 24.40% from 25 to 44, 22.30% from 45 to 64, and 20.70% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 93.60 males. For every 100 females age 18 and over, there were 93.00 males.
The median household income was $32,131, and the median family income was $40,104. Males had a median income of $28,105 versus $19,609 for females. The per capita income for the county was $17,294. About 4.70% of families and 7.30% of the population were below the poverty line, including 7.80% of those under age 18 and 8.60% of those age 65 or over.