37800 is a postalcode and its consensus geometry is derived from figov.
{"mz:is_ceased":0,"geom:latitude":61.127136,"figov:nimi":"Toijala keskus","wof:name":"37800","counts:names_total":0,"wof:placetype":"postalcode","wof:hierarchy":[{"continent_id":102191581,"country_id":85633143,"macroregion_id":404227417,"postalcode_id":421479605,"region_id":85683099}],"mz:is_deprecated":0,"lbl:latitude":61.138686,"geom:area":0.03038,"geom:longitude":23.847825,"wof:id":421479605,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1469577663,"wof:belongsto":[102191581,85633143,85683099,404227417],"wof:concordances":{"gp:id":"12829181"},"wof:repo":"whosonfirst-data-postalcode-fi","src:geom":"figov","wof:country":"FI","counts:names_preferred":0,"gp:parent_id":"56120848","wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FI","counts:names_languages":0,"geom:bbox":"23.6856942444,61.028125783,24.0054595834,61.2157395286","src:lbl:centroid":"mapshaper","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":23.883232,"wof:geomhash":"8e04c56b20f97336324a120a1538351b","wof:parent_id":85683099,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}