The figures compare to a rise of 6.4% on the previous year.
Figures from the Residential Tenancies Board shows the national standardised average rent was €1,256 in the last three months of 2020.
In Dublin, the standardised average rent stood at €1,745 per month, up just over 2% year-on-year.
Dublin, Kildare and Wicklow were among eight counties that had standardised average rents above €1,000 a month.
Business Leaders & Personalities Gather To Outline Temporary Alternative To Push Cliff Walk Reopening
Beyong The Pale Pre-Sale Tickets Go Live As Wicklow's 'Boutique' Festival Reveals Headliners
Relief For Coast Guard As Sod Turning Event Marks Some Movement Towards New Station In Greystones
Wicklow Wexford TD Says Mercosur Deal Would Signal ''Death-Knell'' For Irish Agriculture
Wicklow Eco Trail Festival Receives Massive Shot In The Arm