Males had a median income of $30,833 versus $24,583 for females. The per capita income for the county was $24,286. About 15.0% of families and 18.9% of the population were below the poverty line, including 31.1% of those under age 18 and 19.7% of those age 65 or over. Sheridan County voters have been reliably Republican for decades. In no national election since 1936 has the county selected the Democratic Party candidate (as of 2016).