Strong demand, low vacancy and limited housing stock are keeping county prices elevated.
Wicklow remains the most expensive county in which to buy a home outside of Dublin.
The latest GeoDirectory's Residential Buildings Report shows Wicklow recorded the second-highest average price in the State in the 12 months to May, at €527,282.
Kildare was the third most expensive county, where buying a home will leave little change from €452,000.
Both are above the national average, which itself rose by 4.7% year-on-year.
Wicklow also continues to have one of the tightest housing markets in the State, despite a slower rate of new building.
The county vacancy rate stood at 2.4% in June, well below the national average of 3.7%.
Nationally, 81,373 residential units were classified as vacant. The national vacancy rate was unchanged year-on-year, although 15 of the 26 counties recorded declines.
Wicklow is among the counties with the smallest proportion of derelict stock which impacts property sales.
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