La Harpe is located in Illinois. La Harpe, Illinois has a population of 1,119. La Harpe is less family-centric than the surrounding county with 18% households with children. The county percentage for households with children is 23%.
The median household income in La Harpe, Illinois is $51,838. The median household income for the surrounding county is $54,718 compared to the national median of $66,222. The median age of people living in La Harpe is 44.2 years.
The average high temperature in July is 87 degrees, with an average low temperature in January of 13.3 degrees. The annual precipitation is 39.14.