08861 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":40.520473,"wof:name":"08861","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087417,"localadmin_id":404477477,"locality_id":85975737,"postalcode_id":554700763,"region_id":85688607}],"mz:is_deprecated":0,"lbl:latitude":40.520494,"mz:postal_locality_alt":["Hopelawn"],"geom:area":0.001768,"geom:longitude":-74.272485,"wof:id":554700763,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183174,"wof:belongsto":[102191575,85633793,102087417,404477477,85975737,85688607],"wof:concordances":{"gp:id":"12761296"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.6623195509156E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-74.300822,40.494507,-74.246069,40.544599","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-74.272943,"wof:geomhash":"136ccb22fde5ba99d1132bf03e83cc06","wof:parent_id":85975737,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Perth Amboy"}