The population of the Ballyboden St. Endas catchment area has grown by 3.5% or 1,419 according to the Preliminary Report of Census 2006. The biggest growth was recorded in the Firhouse Village area.
| Area | 2002 | 2006 | Males | Females | Actual change | % change |
| Ballyboden | 5,285 | 5,193 | 2,552 | 2,641 | -92 | -1.7 |
| Firhouse-Ballycullen | 6,594 | 6,608 | 3,342 | 3,266 | 14 | 0.2 |
| Firhouse-Knocklyon | 4,331 | 4,018 | 2,006 | 2,012 | -313 | -7.2 |
| Firhouse Village | 9,024 | 11,010 | 5,443 | 5,567 | 1,986 | 22.0 |
| Rathfarnham-Butterfield | 3,222 | 3,275 | 1,587 | 1,688 | 53 | 1.6 |
| Rathfarnham-Hermitage | 4,468 | 4,612 | 2,210 | 2,402 | 144 | 3.2 |
| Rathfarnham-St. Enda’s | 4,234 | 3,937 | 1,881 | 2,056 | -297 | -7.0 |
| RathfarnhamVillage | 3,114 | 3,038 | 1,403 | 1,635 | -76 | -2.4 |
| Total | 40,272 | 41,691 | 20,424 | 21,267 | 1,419 | 3.5 |