28356 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":35.230899,"wof:name":"28356","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102080897,"postalcode_id":554711339,"region_id":85688773}],"mz:is_deprecated":0,"lbl:latitude":35.23702,"geom:area":0.014218,"geom:longitude":-78.790894,"wof:id":554711339,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611185300,"wof:belongsto":[102191575,85633793,102080897,85688773],"wof:concordances":{"gp:id":"12769585"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12589399","geom:area_square_m":1.4361040441794E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-78.905367,35.166439,-78.693109,35.301947","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-78.790396,"wof:geomhash":"2540275154622e05fc0bfdadc6985ef6","wof:parent_id":102080897,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Linden"}