Cavan and Monaghan have both seen an increase in their populations, according to the results of last year’s Census.
The first set of results of Census 2016 have been published this morning – showing a national population increase of 3.8 percent since April 2011, to now stand at almost 4.8 million.
Cavan has the biggest population of the Northern Sound counties at just over 76,000 (76,176), an increase of 4.1 per cent since 2011.
Monaghan’s stands at 61,000 (61,386), up by 1.5 per cent over the last five years.
The CSO results show the average age of people in both counties has risen slightly with Monaghan’s being 37.4 and Cavan’s slightly lower, at 37.2.
Ireland’s population now stands at 4.8 million, up 3.8 per cent on 2011.
For the first time, same sex marriages and civil partnerships were captured in an Irish Census.
Almost 5,000 people identified themselves in either of these categories.