59006 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":45.908598,"wof:name":"59006","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102085087,"postalcode_id":554732421,"region_id":85688617}],"mz:is_deprecated":0,"lbl:latitude":45.92083,"geom:area":0.019367,"geom:longitude":-108.080437,"wof:id":554732421,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184393,"wof:belongsto":[102191575,85633793,102085087,85688617],"wof:concordances":{"gp:id":"12783527"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12589136","geom:area_square_m":1.6662759732976E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-108.217503,45.797998,-107.983935,45.988169","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-108.08888,"wof:geomhash":"39aa1c7a4f9edac08fe72b12050c220a","wof:parent_id":102085087,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Ballantine"}