Property prices in Kilkenny, between April and June this year, were 13% higher than a year previously, compared to a rise of 16% seen a year ago.
The latest figures show that the average house price is now €188,000, 42% above its lowest point.
In neighbouring counties prices for the same three-month time period increased by 5.1% in Tipperary, 6.2% in Waterford, 5.6% in Carlow and 10.4% in Wexford.
The total number of properties for sale nationwide recorded a rare increase between March and June.
Having reached a nine-year low in March, at less than 24,000, the total number of homes for sale in June was 25,260, roughly 15% below the same month in 2015.
The figures were part of the House Price Report released by Ireland’s largest property website, Daft.ie.