sumner county, ks, population
Population of Sumner County. Last official estimated population of Sumner County was 24,110 (year 2014)[1]. This was 0.008% of total US population and 0.8% of total Kansas state population. Area of Sumner County is 1,185.0 miÂ² (=3069 kmÂ²), in this year population density was 20.35 p/miÂ². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Sumner County population in 2017 would be 24,094 .