67031 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":37.401608,"wof:name":"67031","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102085325,"localadmin_id":404505221,"postalcode_id":554738595,"region_id":85688555}],"mz:is_deprecated":0,"lbl:latitude":37.399302,"geom:area":0.029467,"geom:longitude":-97.640463,"wof:id":554738595,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183094,"wof:belongsto":[102191575,85633793,102085325,404505221,85688555],"wof:concordances":{"gp:id":"12787089"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12588466","geom:area_square_m":2.89448802567275E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-97.766684,37.322073,-97.494485,37.489256","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-97.639518,"wof:geomhash":"abb4f7a2996429ea569c3266f7ac1a2f","wof:parent_id":404505221,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Conway Springs"}