55110 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":45.090253,"wof:name":"55110","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087007,"localadmin_id":404514473,"locality_id":85953019,"postalcode_id":554729065,"region_id":85688727}],"mz:is_deprecated":0,"lbl:latitude":45.089912,"mz:postal_locality_alt":["St Paul","White Bear Lake","Hugo","Forest Lake","Dellwood"],"geom:area":0.008979,"geom:longitude":-93.006243,"wof:id":554729065,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1611185415,"wof:belongsto":[102191575,85633793,102087007,404514473,85953019,85688727],"wof:concordances":{"gp:id":"12781745"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":7.8387822728764E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-93.06275,45.034276,-92.93832,45.15358","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-93.005988,"wof:geomhash":"55d4c031ab44ff07cf0f1d650872f456","wof:parent_id":85953019,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Saint Paul"}