The proportion of people identifying as “Bisexual” was largest in Ceredigion (2.6%), Cardiff (2.4%), Gwynedd (1.6%) and Swansea (1.5%).
Roedd y cyfraddau diweithdra amcangyfrifedig isaf yn Sir Fynwy (2.5%), Ceredigion (2.6%) a Sir y Fflint (2.7%).