77489 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":29.60057,"wof:name":"77489","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087339,"locality_id":101725877,"postalcode_id":554746241,"region_id":85688753}],"mz:is_deprecated":0,"lbl:latitude":29.600498,"mz:postal_locality_alt":["Sealy","Stafford"],"geom:area":0.002755,"geom:longitude":-95.516336,"wof:id":554746241,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611184018,"wof:belongsto":[102191575,85633793,102087339,101725877,85688753],"wof:concordances":{"gp:id":"12791645"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":2.9616768640436E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-95.550165,29.561817,-95.476633,29.639819","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-95.515537,"wof:geomhash":"db5b063605f4583bb7c2350acf3ef3b9","wof:parent_id":101725877,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Missouri City"}