Olpe is a city located in Kansas. With a 2020 population of 535, it is the 270th largest city in Kansas and the 13023rd largest city in the United States. Olpe is currently declining at a rate of -0.37% annually and its population has decreased by -2.01% since the most recent census, which recorded a population of 546 in 2010. Olpe reached it's highest population of 548 in 2011. Spanning over 1 miles, Olpe has a population density of 762 people per square mile.
The average household income in Olpe is $59,882 with a poverty rate of 9.57%. The median rental costs in recent years comes to $750 per month, and the median house value is $122,300. The median age in Olpe is 41.6 years, 45.3 years for males, and 38.2 years for females. For every 100 females there are 74.8 males.