The cost of a home increased by 8.6% in the 12 months to June.
That's up from 8.5% in the year to May.
CSO figures show prices in Dublin went up by over 9%, while outside the capital, they saw a rise of 8.2%.
Nationally, the median price of a home bought in the last 12 months was €337,500.
Wicklow had the highest median prices outside of Dublin, at €445,000
Outside of Dublin the most expensive Eircode area over the last twelve months was A63 'Greystones', with a median price of just under €540,000
The second most expensive Eircode area was A98 'Bray' with a median price of €475,000.
TD Calls For The Government To Get A Move On With South-Wicklow Greenway
Wicklow Councillors Demand €15m In Emergency Funding For Storm-Damaged Roads
Wicklow Hurlers Dominate Fermanagh To Ramp Up Promotion Hopes
Survey Shows Wicklow Families Want The Right To Deliver A Funeral Eulogy
Bray Vet Helps Reunite Wandering Pup with Owners