Johnson County, Kansas

2010 Population: 544,179
Population Per Square Mile: 1,141.4
2000 Population: 451,086
% High School Graduates: 95.3
% Bachelor's Degree: 50.5
Number of Households: 201,911
Area (square miles): 477
Farm Acreage: 114,202

Number of Schools: 159
Number of Students: 90,060
Elementary Schools: 106
Middle Schools: 29
High Schools: 22
Magnet Schools: 0
Charter Schools: 1