Hiawatha is a city located in Brown County Kansas. It is also the county seat of Brown County. With a 2020 population of 3,088, it is the 87th largest city in Kansas and the 6164th largest city in the United States . Hiawatha is currently declining at a rate of -0.48% annually and its population has decreased by -2.65% since the most recent census, which recorded a population of 3,172 in 2010. Hiawatha reached it's highest population of 3,702 in 1980. Spanning over 3 miles, Hiawatha has a population density of 1,190 people per square mile.
The average household income in Hiawatha is $54,976 with a poverty rate of 10.62%. The median rental costs in recent years comes to $694 per month, and the median house value is $87,500. The median age in Hiawatha is 44.3 years, 41.9 years for males, and 45.8 years for females.