35601 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":34.609156,"wof:name":"35601","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102085531,"locality_id":85913589,"postalcode_id":554715515,"region_id":85688675}],"mz:is_deprecated":0,"lbl:latitude":34.608016,"geom:area":0.008751,"geom:longitude":-87.013562,"wof:id":554715515,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183689,"wof:belongsto":[102191575,85633793,102085531,85913589,85688675],"wof:concordances":{"gp:id":"12773176"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":8.905672004795E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-87.105424,34.55573,-86.914908,34.686037","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-87.011052,"wof:geomhash":"74b9111a054c9c2ac375fe19ac531463","wof:parent_id":85913589,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Decatur"}