51235 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":43.294527,"wof:name":"51235","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102086405,"postalcode_id":554726477,"region_id":85688713}],"mz:is_deprecated":0,"lbl:latitude":43.294539,"geom:area":0.01608,"geom:longitude":-96.21837,"wof:id":554726477,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184870,"wof:belongsto":[102191575,85633793,102086405,85688713],"wof:concordances":{"gp:id":"12780254"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12588331","geom:area_square_m":1.44717533495586E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-96.354023,43.243766,-96.097625,43.346184","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-96.218369,"wof:geomhash":"db49bcae850bbb80e9fec9db95fe1fb8","wof:parent_id":102086405,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Doon"}