Harper is a city in Harper County, Kansas, United States. As of the 2010 census, the city population was 1,473.
Harper was founded in 1877 by a colony from Iowa. The city of Harper, like Harper County, is named for Sergeant Marion Harper of the 2nd Kansas Cavalry, who fell in the (American) Civil War. Harper was incorporated as a city in 1880.
The first post office in Harper was established in May 1877 as Cora City, but in June of that year, the post office was renamed Harper.
Harper is located at 37°17′07″N 98°01′36″W (37.285252, -98.026615). According to the United States Census Bureau, the city has a total area of 1.63 square miles (4.22 km2), all of it land.
As of the census of 2010, there were 1,473 people, 624 households, and 385 families living in the city. The population density was 903.7 inhabitants per square mile (348.9/km2). There were 742 housing units at an average density of 455.2 per square mile (175.8/km2). The racial makeup of the city was 92.2% White, 0.2% African American, 1.3% Native American, 0.1% Asian, 0.5% Pacific Islander, 4.8% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 10.0% of the population.
There were 624 households, of which 30.9% had children under the age of 18 living with them, 47.0% were married couples living together, 8.7% had a female householder with no husband present, 6.1% had a male householder with no wife present, and 38.3% were non-families.