78541 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":26.448088,"wof:name":"78541","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102083831,"postalcode_id":554756591,"region_id":85688753}],"mz:is_deprecated":0,"lbl:latitude":26.450353,"geom:area":0.067881,"geom:longitude":-98.284257,"wof:id":554756591,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184295,"wof:belongsto":[102191575,85633793,102083831,85688753],"wof:concordances":{"gp:id":"23424653"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":7.51507917982178E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-98.516227,26.299248,-98.115326,26.606235","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-98.276866,"wof:geomhash":"1b8b136f777332e8db63a3182e771963","wof:parent_id":102083831,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Edinburg"}