In 1872, Smith County was created. The first homestead in Smith County was in 1871. There were 3,800 people living there by 1875. The county grew to 15,000 people by 1889. Corn was the main crop, but drought and grasshoppers hurt the crops. When hardy Winter wheat was introduced to Kansas by Russian settlers, it eventually became the main crop in Smith County. The number of people living in Smith County has slowly gone down since 1900. This is due to advanced farming techniques that need fewer people to farm.