15137 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":40.377984,"wof:name":"15137","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102080887,"localadmin_id":404484149,"postalcode_id":554703501,"region_id":85688481}],"mz:is_deprecated":0,"lbl:latitude":40.375736,"geom:area":0.00217,"geom:longitude":-79.808952,"wof:id":554703501,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184467,"wof:belongsto":[102191575,85633793,102080887,404484149,85688481],"wof:concordances":{"gp:id":"12763632"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12589729","geom:area_square_m":2.0441108788441E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-79.853495,40.359481,-79.766201,40.404289","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-79.808765,"wof:geomhash":"89dd67ffb293b4d2cd3f5db5fca9108f","wof:parent_id":404484149,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"North Versailles"}