Car Show is held in August. Gibb's claim to fame was as the sponsor of the original ZL-1 COPO Camaros and Novas during the pony car era of the early 1970s. Gibb's name has since been omitted from the car show. Today, many of the surviving buildings in La Harpe's business districts, including the City Hall, are on the National Register of Historic Places. La Harpe had the only four-story building in Hancock County. The park district includes a community clubhouse, swimming pool, the LaMoine Valley golf course, and a complex of lighted ball fields. The city park has a lighted shelter house and stage. Geography La Harpe is located in northeastern Hancock County at , south of the South Branch La Moine River. Illinois Route 9 passes through the city as its Main Street, leading east to Bushnell and west to Dallas City on the Mississippi River. Illinois Route 94 intersects IL 9 at the western edge of the city, and leads north to Stronghurst. According to the 2010 census, La Harpe has a total area of , all land. Climate Demographics As of the census of 2000, there were 1,385 people, 561 households, and 383 families residing in the city. The population density was . There were 604 housing units at an average density of . The racial makeup of the city was 99.78% White, 0.07% from other races, and 0.14% from two or more races. Hispanic or Latino of any race were 0.14% of the population. There were 561 households, out of which 31.2% had children under the age of 18 living with them, 57.0% were married couples living together, 9.4% had a female householder with no husband present, and 31.6% were non-families. 29.1% of all households were made up of individuals, and 16.0% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.93. In the city, the population was spread out, with 24.0% under the age of 18, 6.5% from 18 to 24, 24.4% from 25 to 44, 23.5% from 45 to 64, and 21.7% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 85.2 males. For every 100 females age 18 and over, there were 77.3 males. The median income for a household in the city was $32,589, and