Harper is a city located in Kansas. With a 2020 population of 1,293, it is the 160th largest city in Kansas and the 9270th largest city in the United States. Harper is currently declining at a rate of -1.52% annually and its population has decreased by -12.22% since the most recent census, which recorded a population of 1,473 in 2010. Harper reached it's highest population of 1,467 in 2010. Spanning over 2 miles, Harper has a population density of 799 people per square mile.
The average household income in Harper is $50,417 with a poverty rate of 12.51%. The median rental costs in recent years comes to $638 per month, and the median house value is $61,700. The median age in Harper is 43.1 years, 40.1 years for males, and 44.4 years for females. For every 100 females there are 107.2 males.