For the latest period for which sufficient data is available (2019-20 to 2021-22), 18% of households spent 30% or more of their income on housing costs.
Ar gyfer y cyfnod diweddaraf y mae digon o ddata ar gael ar ei gyfer (2019-20 i 2021-22), roedd 18% o aelwydydd yn gwario 30% neu fwy o’u hincwm ar gostau tai.