68127 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":41.205454,"wof:name":"68127","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102082789,"localadmin_id":404518711,"locality_id":85973483,"postalcode_id":554739531,"region_id":85688563}],"mz:is_deprecated":0,"lbl:latitude":41.20561,"mz:postal_locality_alt":["Ralston"],"geom:area":0.001856,"geom:longitude":-96.0507,"wof:id":554739531,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611182667,"wof:belongsto":[102191575,85633793,102082789,404518711,85973483,85688563],"wof:concordances":{"gp:id":"12787546"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.7266048391802E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-96.081537,41.190642,-96.00913,41.221681","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-96.04976,"wof:geomhash":"1b7c546c0fa402fe50833b2b561b1e0a","wof:parent_id":85973483,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Omaha"}