53911 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":43.32545,"wof:name":"53911","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102081841,"localadmin_id":404493053,"locality_id":101733187,"postalcode_id":554727947,"region_id":85688517}],"mz:is_deprecated":0,"lbl:latitude":43.325821,"geom:area":0.010354,"geom:longitude":-89.363026,"wof:id":554727947,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611185511,"wof:belongsto":[102191575,85633793,102081841,404493053,101733187,85688517],"wof:concordances":{"gp:id":"12781105"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12590544","geom:area_square_m":9.3136121697179E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-89.444523,43.275485,-89.285057,43.379295","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-89.367495,"wof:geomhash":"fca5dce1cf033041ea94fdc8784a6905","wof:parent_id":101733187,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Arlington"}