30601 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":34.000847,"wof:name":"30601","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102081713,"locality_id":85936177,"postalcode_id":554713325,"region_id":85688535}],"mz:is_deprecated":0,"lbl:latitude":33.999151,"geom:area":0.006044,"geom:longitude":-83.348532,"wof:id":554713325,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183315,"wof:belongsto":[102191575,85633793,102081713,85936177,85688535],"wof:concordances":{"gp:id":"12770922"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"2356940","geom:area_square_m":6.1952717182252E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-83.412141,33.946831,-83.273685,34.056604","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-83.346992,"wof:geomhash":"ed86d0f1c7e221f0698245b95ce99978","wof:parent_id":85936177,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Athens"}