22405 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":38.31524,"wof:name":"22405","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102081931,"postalcode_id":554707675,"region_id":85688747}],"mz:is_deprecated":0,"lbl:latitude":38.313604,"mz:postal_locality_alt":["Falmouth"],"geom:area":0.01459,"geom:longitude":-77.403834,"wof:id":554707675,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183135,"wof:belongsto":[102191575,85633793,102081931,85688747],"wof:concordances":{"gp:id":"12766909"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.41550731010736E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-77.502307,38.242225,-77.3214,38.397622","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-77.403928,"wof:geomhash":"48b154a4ca168bea547091ee9531a87f","wof:parent_id":102081931,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Fredericksburg"}