18062 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":40.502514,"wof:name":"18062","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102081327,"localadmin_id":404485957,"postalcode_id":554705607,"region_id":85688481}],"mz:is_deprecated":0,"lbl:latitude":40.503935,"mz:postal_locality_alt":["Trexlertown"],"geom:area":0.005882,"geom:longitude":-75.583021,"wof:id":554705607,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184124,"wof:belongsto":[102191575,85633793,102081327,404485957,85688481],"wof:concordances":{"gp:id":"12765052"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"2347597","geom:area_square_m":5.529985022778E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-75.6508,40.454101,-75.52319,40.554686","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-75.58518,"wof:geomhash":"31ceebcb543b1c1b94800113bc7c525a","wof:parent_id":404485957,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Macungie"}