46250 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":39.904145,"wof:name":"46250","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087201,"localadmin_id":404502029,"locality_id":85942569,"postalcode_id":554722629,"region_id":85688709}],"mz:is_deprecated":0,"lbl:latitude":39.898839,"mz:postal_locality_alt":["Castleton"],"geom:area":0.002077,"geom:longitude":-86.068139,"wof:id":554722629,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183219,"wof:belongsto":[102191575,85633793,102087201,404502029,85942569,85688709],"wof:concordances":{"gp:id":"12777684"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.9700710309069E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-86.098354,39.883249,-86.036593,39.929302","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-86.05872,"wof:geomhash":"11949dd910e08f5f9846ee661379b999","wof:parent_id":85942569,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Indianapolis"}