Residential property prices increased by 5.5% in the year to May, up from 4.6% in the year to April.
CSO figures show the price of an apartment or house went up by 6.2% outside Dublin.
In the capital, they rose by 4.9%.
Outside of Dublin, Greystones had the highest median price at over €481,000 followed by Bray at €405,000 and Celbridge in County Kildare at €395,000.
Irish Coast Guard, RNLI and Water Safety Ireland urge everyone to 'Unite to Turn the Tide
July has been one of the busiest months in years for rescue services, with warm weather bringing more people to Wicklow beaches, rivers and lakes.
Bray Wanderers Head To Cobh Amid Apparent Cross-Channel Interest In Seagulls Talent
New Laws Boost Protection In Wicklow Mountains National Park
A dedicated National Parks Bill will put nature conservation first and help manage growing visitor numbers.
Woman Dies In Waters At Wicklow Beach
The incident occurred on the outskirts of Wicklow town, near the Blainroe golf club.
Wicklow Housing Remains Ireland's Most Expensive Outside Dublin
Strong demand, low vacancy and limited housing stock are keeping county prices elevated.
6:00am - 8:00am
The Wicklow Way with Nikki Hayes
Medium-level cloud
High: 22°C | Low: 15°C
Light rain
High: 22°C | Low: 15°C
Sunny intervals
High: 22°C | Low: 14°C
Medium-level cloud
High: 21°C | Low: 14°C
Medium-level cloud
High: 22°C | Low: 15°C