19107 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":39.951737,"wof:name":"19107","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102081353,"localadmin_id":404483701,"locality_id":101718083,"postalcode_id":554706277,"region_id":85688481}],"mz:is_deprecated":0,"lbl:latitude":39.951737,"geom:area":1.5E-4,"geom:longitude":-75.158653,"wof:id":554706277,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611182705,"wof:belongsto":[102191575,85633793,102081353,404483701,101718083,85688481],"wof:concordances":{"gp:id":"12765494"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1421372.69644,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-75.165299,39.943615,-75.151102,39.959571","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-75.158653,"wof:geomhash":"a7928da04c047ff72cde2a3f550b6696","wof:parent_id":101718083,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Philadelphia"}