Killiney's population grew substantially in the decades following the Emergency as the urbanisation of Ireland and the suburbanisation of Dublin progressed. The main sub-districts most locals will identify are Killiney Hill Park, Roche's Hill (locally called Mullins' Hill), Killiney village itself, North Killiney (Cluny Grove, Killiney Road, Ballinclea), Killiney Hill Road and Vico Road. The last six of these areas are developed, most frequently with two-storey housing, at average densities of 10 to 30 houses per hectare. North Killiney mainly consists of two-bedroom, two-storey housing at 10 to 30 houses per hectare.