Oldcastle in County Meath has 17.78% of its population born in Lithuania – that is the highest percentage in Ireland. The next nearest town that is popular with Lithuanians is Ballybay in Monaghan – which has 9.92% of residents born in Lithuania.
County Monaghan towns are very popular with Lithuanians – Carrickmacross , Monaghan and Clones all have around 5 to 6% Lituanian born living there.
The figures are from the 2006 Census of Ireland.