Newport had the highest number of caravans on unauthorised sites (49 caravans, accounting for roughly a third of all caravans on unauthorised sites).
Casnewydd oedd â'r nifer uchaf o garafannau ar safleoedd anawdurdodedig (49 o garafannau, yn cyfrif am tua chwarter y carafannau ar safleoedd anawdurdodedig).