42820 is a postalcode and its consensus geometry is derived from figov.
{"mz:is_ceased":0,"geom:latitude":62.198279,"figov:nimi":"Riiho","wof:name":"42820","counts:names_total":0,"wof:placetype":"postalcode","wof:hierarchy":[{"continent_id":102191581,"country_id":85633143,"macroregion_id":404227417,"postalcode_id":421475711,"region_id":85683117}],"mz:is_deprecated":0,"lbl:latitude":62.192042,"geom:area":0.008109,"geom:longitude":24.35229,"wof:id":421475711,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1469577643,"wof:belongsto":[102191581,85633143,85683117,404227417],"wof:concordances":{"gp:id":"12829360"},"wof:repo":"whosonfirst-data-postalcode-fi","src:geom":"figov","wof:country":"FI","counts:names_preferred":0,"gp:parent_id":"12590708","wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FI","counts:names_languages":0,"geom:bbox":"24.2666922167,62.1599338575,24.4492542046,62.2405939048","src:lbl:centroid":"mapshaper","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":24.358519,"wof:geomhash":"8b9dcfa569d0e40f2e627e5739a42a14","wof:parent_id":85683117,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}