Respondents who were more likely to disagree that the council tax system supports people who cannot afford to pay were from the South Wales Valleys or living in private rented accommodation.
Roedd ymatebwyr a oedd yn fwy tebygol o anghytuno bod system y dreth gyngor yn cefnogi pobl na allant fforddio talu o Gymoedd De Cymru neu'n byw mewn llety rhent preifat.