01852 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":42.632332,"wof:name":"01852","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102084643,"localadmin_id":404476397,"locality_id":85950327,"postalcode_id":554697289,"region_id":85688645}],"mz:is_deprecated":0,"lbl:latitude":42.631912,"mz:postal_locality_alt":["Tewksbury"],"geom:area":0.001477,"geom:longitude":-71.295355,"wof:id":554697289,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184640,"wof:belongsto":[102191575,85633793,102084643,404476397,85950327,85688645],"wof:concordances":{"gp:id":"12758602"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.3434549805002E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-71.320025,42.612675,-71.271271,42.656216","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-71.296025,"wof:geomhash":"ceb201105c6e5c71fb8322948d16d28c","wof:parent_id":85950327,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Lowell"}