Halfa is a locality and its consensus geometry is derived from geonames.
{"gn:population":0,"geom:latitude":43.3519,"gn:name":"Halfa","wof:name":"Halfa","counts:names_total":2,"gn:feature_code":"PPL","gn:admin3_code":"90081.0","gn:feature_class":"P","mz:is_current":-1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102086601,"locality_id":1276135525,"region_id":85688713}],"gn:dem":385,"gn:elevation":"387.0","mz:min_zoom":12,"lbl:min_zoom":13.5,"geom:area":0,"gn:admin2_code":"63.0","gn:latitude":43.3519,"gn:asciiname":"Halfa","lbl:bbox":"-94.56192,43.3319,-94.52192,43.3719","counts:concordances_total":2,"gn:country_code":"US","geom:type":"Point","wof:lastmodified":1566621386,"gn:admin1_code":"IA","wof:belongsto":[102191575,85633793,85688713,102086601],"wof:repo":"whosonfirst-data-admin-us","wof:country":"US","counts:names_preferred":2,"geom:area_square_m":0,"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","geom:bbox":"-94.54192,43.3519,-94.54192,43.3519","wof:superseded_by":[],"name:fra_x_preferred":["Halfa"],"wof:geomhash":"774c6cc666a4b4cdf5e039b74c2c476a","name:fas_x_preferred":["هالفا"],"wof:placetype_id":102312317,"mz:is_ceased":0,"lbl:max_zoom":18,"wof:placetype":"locality","gn:longitude":-94.54192,"mz:is_deprecated":0,"gn:modification_date":"2017-05-23","geom:longitude":-94.54192,"wof:id":1276135525,"wof:concordances":{"gn:id":4859580,"wk:page":"Halfa%2C_Iowa"},"src:geom":"geonames","gn:geonameid":4859580,"wof:tags":[],"counts:names_languages":2,"wof:supersedes":[],"wof:parent_id":102086601,"wof:placetype_names":["locality"],"mz:hierarchy_label":1,"gn:timezone":"America/Chicago","edtf:cessation":"uuuu"}