68622 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":41.941904,"wof:name":"68622","counts:names_total":0,"wof:placetype":"postalcode","wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102082757,"localadmin_id":404520817,"postalcode_id":554739907,"region_id":85688563}],"mz:is_deprecated":0,"lbl:latitude":41.93481,"geom:area":0.04929,"geom:longitude":-98.580477,"wof:id":554739907,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1480794393,"wof:belongsto":[85688563,102191575,404520817,85633793,102082757],"wof:concordances":{"gp:id":"12787737"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12589229","geom:area_square_m":4.53348449137739E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-98.761013,41.826717,-98.295559,42.058903","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-98.622715,"wof:geomhash":"3762140e88fcdb039da951680b9a4c95","wof:parent_id":404520817,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}