The index of the price of homes is at its highest level ever - but the prices themselves remain slightly below the peak in 2007.
According to the CSO, there has also been a slight slowdown in the rate increase.
The lowest median price was €145,000 euro in Longford, while the highest was €610,000 euro in Dún Laoghaire-Rathdown.
However, there seems to be a slight slowdown in the rate at which prices are increasing.
Nationally, Residential properties rose by 13% in the last year up until July - down just under 1% compared to June.
In Dublin, prices increased by 10.4%, while the rest of the country saw prices just over 15% higher than a year earlier.
Property in the West of Ireland saw the largest annual percentage change, of just over 19%.