La Harpe is a city located in Allen County Kansas. With a 2020 population of 526, it is the 275th largest city in Kansas and the 13098th largest city in the United States . La Harpe is currently declining at a rate of -0.38% annually and its population has decreased by -9.00% since the most recent census, which recorded a population of 578 in 2010. La Harpe reached it's highest population of 574 in 2011. Spanning over 1 miles, La Harpe has a population density of 655 people per square mile.
The average household income in La Harpe is $45,469 with a poverty rate of 13.83%. The median rental costs in recent years comes to $715 per month, and the median house value is $54,400. The median age in La Harpe is 45.9 years, 45.4 years for males, and 46.4 years for females.