Results from the 2021 Census estimate that 2.5 million usual residents in Wales (81.2%) held at least one passport and 583,000 (18.8%) did not have a passport.
Mae canlyniadau Cyfrifiad 2021 yn amcangyfrif bod gan 2.5 miliwn o breswylwyr arferol yng Nghymru (81.2%) o leiaf un pasbort ac nad oedd gan 583,000 (18.8%) basport.