The population of the area in 2002 was 440 persons which represented an 8.9% increase in population since 1996.
Rosenallis is also important in the history of the Quaker movement, with William Edmundson, founder of the Quakers in Ireland, buried outside the village in the Friends graveyard. The village also has two churches (Roman Catholic and Church of Ireland) as well as a village primary school, community centre and small shops, the village once had two pubs, closest pubs are Clonaslee and Mountmellick. The secondary level schools serving the area are Clonaslee and Mountmellick.
Rosenallis AFC is the local soccer club. It plays home games at its grounds "Johnsgrove".