20175 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":39.0593,"wof:name":"20175","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102084951,"postalcode_id":554706817,"region_id":85688747}],"mz:is_deprecated":0,"lbl:latitude":39.064414,"geom:area":0.017033,"geom:longitude":-77.600717,"wof:id":554706817,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611182689,"wof:belongsto":[102191575,85633793,102084951,85688747],"wof:concordances":{"gp:id":"12765969"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.63544586037526E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-77.706034,38.95676,-77.509733,39.140853","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-77.603967,"wof:geomhash":"510a3e0366037c880afa6d7a242917aa","wof:parent_id":102084951,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Leesburg"}