57770 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":43.070272,"wof:name":"57770","counts:names_total":0,"wof:placetype":"postalcode","wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102086861,"localadmin_id":404491031,"postalcode_id":554731541,"region_id":85688693}],"mz:is_deprecated":0,"lbl:latitude":43.057997,"geom:area":0.057204,"geom:longitude":-102.589798,"wof:id":554731541,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1480913838,"wof:belongsto":[85688693,102191575,404491031,85633793,102086861],"wof:concordances":{"gp:id":"12783086"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12589901","geom:area_square_m":5.16718558785031E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-102.825661,42.999395,-102.287283,43.233869","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-102.589621,"wof:geomhash":"982653349d928a5c25f3845c9fb11a4c","wof:parent_id":404491031,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}