More than 100,000 people have divorced since 1996 - with the highest rates in Dublin, Waterford and Carlow.
Divorce application figures are highest in the main urban centres of Dublin, Cork, Limerick and Galway and lowest in Leitrim and Longford, where in some years applications have been as low as 20.
But when population size is taken into account, Dublin, Waterford and Carlow are top of the list but Kildare has the lowest rate of divorce.
New figures have revealed that the numbers of couples divorcing has dropped substantially in recent years.
And women are more likely to apply for a divorce than men.
An analysis of two decades of statistics by the RTÉ Investigations Unit has found that over 100,000 people have divorced since its introduction in the 1995 referendum.
The research found that over 20 years the numbers seeking divorce settled into a steady pattern and have dropped slightly in recent years.
It's unclear whether the economic climate and the numbers of couples in negative equity may have contributed to the fall-off.
After an initial tranche of 93 divorces were granted in 1997, the numbers rose to their peak in 2007 with 3,684 before experiencing a gradual fall to 2,724 in 2014, the last year for which there are full figures.
Women are slightly more likely to apply for a divorce than men.
Of the 25,000 divorce applications over the past seven years, 55% were made by women and 45% by men.
A total of 38 applications for separation were made by same-sex couples in Ireland in 2014.
The vast majority of divorce applications were granted. Only 12 were refused in 2014.
Divorce remains a rarity in Ireland by international comparisons.
Only a handful of countries, including Guatemala, Peru and Bosnia-Herzegovina, had a lower divorce rate in 2012. The divorce rate is three times higher in the UK and four times higher in the US.
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