| Year | Welsh (%) | English (%) | Bilingual (%) |
| 1901 | 15.0 | 50.0 | 35.0 |
| 1911 | 8.0 | 57.0 | 35.0 |
| 1921 | 6.0 | 63.0 | 31.0 |
| 1931 | 4.0 | 63.0 | 33.0 |
| 1951 | 2.0 | 71.0 | 27.0 |
| 1961 | 1.0 | 74.0 | 25.0 |
| 1971 | 1.0 | 79.0 | 20.0 |
| 1981 | 1.0 | 81.0 | 18.0 |
| 1991 | 0.0 | 81.0 | 19.0 |
| 2001 | 0.0 | 79.0 | 21.0 |