Overall Population: Missouri has much more people living in the state than Kansas. 6.137 million to 2.913 million. ... Kansas vs. Missouri Comparison. CategoryMissouriKansas Sales Tax Rate4.225%6.5% Property Tax Rate2.24% median2.69% median Income Tax Rate0% - 5.4%3.1% - 5.7% Average Property Price$157,200$151,900 10 more rows Mar 24, 2021