Sumner County Gis 501 N Washington Ave Wellington, KS 67152 Phone : (620) 399-1080 Business Category Government Offices-County Legislative Bodies Sumner County Of--gis Courthouse Wellington, KS 67152 Phone : (620) 399-1080 Business Category Government Offices-County Government Offices & Public Schools Sumner County Of--gis Courthouse Wellington, KS 67152 Phone : (620) 399-1080 Business Category Government Offices-County Government Offices & Public Schools