Around 21% of people aged 24 or under live in the most deprived 20% of LSOAs in Wales compared with around 14% of those aged 65 or over.
Mae tua 21% o bobl 24 oed neu iau yn byw yn yr 20% o’r ACEHI mwyaf difreintiedig yng Nghymru o gymharu â thua 14% o unigolion 65 oed a hŷn.