Analysis by daft.ie has found prices in Dublin stabilised in the second quarter of this year, but continue to rise sharply elsewhere.
Nationwide, the average rent was just under 1 thousand 800 euro, up 2 point 4 per cent on the first quarter - and over 2 thousand 300 in the capital, up just 0 point 3 per cent.
Economist at Trinity College and author of the report, Ronan Lyons says some counties saw increases of 5 and 6 per cent in the space of just three months.
'There have been perhaps ten or twelve thousand new rental properties coming on stream in Dublin over the last couple of years. They're starting to have an effect but the rest of the country hasn't seen any new rental supply and with smaller scale landlords leaving the market, the lack of new supply together with strong demand means that there's still very strong upward pressure on rent.'