| 1 | One person household, Not Welsh speaker |
| 2 | One person household, Welsh speaker |
| 3 | Household with one family and no others, Couple households, No Welsh speaking person |
| 4 | Household with one family and no others, Couple households, No adult Welsh speaker, but 1+ Welsh speaking dependent child |
| 5 | Household with one family and no others, Couple households, 1 Welsh speaking adult |
| 6 | Household with one family and no others, Couple households, 2 Welsh speaking adults |
| 7 | Household with one family and no others, Couple households, 3+ Welsh speaking adults |
| 8 | Household with one family and no others, Lone parent households, No Welsh speaking persons |
| 9 | Household with one family and no others, Lone parent households, No adult Welsh speaker, but 1+ Welsh speaking dependent child |
| 10 | Household with one family and no others, Lone parent households, 1 Welsh speaking adult |
| 11 | Household with one family and no others, Lone parent households, 2+ Welsh speaking adults |
| 12 | Other households, No Welsh speaking person |
| 13 | Other households, No adult Welsh speaker, but 1+ Welsh speaking dependent child |
| 14 | Other households, All adults speaking Welsh |
| 15 | Other households, Some but not all adults in household speak Welsh |
| -6 | Missing |
| -9 | No code required (Not a Welsh household, Communal Establishment, No person households) |
