02170 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":42.266504,"wof:name":"02170","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102084403,"localadmin_id":404476591,"locality_id":85950429,"postalcode_id":554778373,"region_id":85688645}],"mz:is_deprecated":0,"lbl:latitude":42.266415,"mz:postal_locality_alt":["Wollaston","Boston"],"geom:area":6.09E-4,"geom:longitude":-71.016006,"wof:id":554778373,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183445,"wof:belongsto":[102191575,85633793,102084403,404476591,85950429,85688645],"wof:concordances":{"gp:id":"12758755"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":5572473.605183,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-71.03751,42.25347,-70.995973,42.281243","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-71.015576,"wof:geomhash":"537bdfa6167c8b136f2740392a921d1d","wof:parent_id":85950429,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Quincy"}