Dun Laoghaire is the most expensive part of the country to buy a house for first time buyers.
Research by switcher.ie found Longford is the most affordable place to buy followed by Leitrim, Donegal, Mayo and Roscommon.
The least affordable areas are unsurprisingly in and around Dublin, with Dun Laoghaire coming in first followed by Wicklow, South Dublin, Fingal and Louth.
It would take 21 years for the average couple to save to buy a home in Dun Laoghaire. That's down from last year's figure of 27 years.
That compares to just over a year and a half to save for a new home in Longford.
The research also found if you're looking to buy an apartment on your own in Dun Laoghaire it would take 46 years to come up with the deposit.