Commercial vacancy rates have increased in 15 counties in the last year.
There are now a total of 29,000 vacant units nationally, according to GeoDirectory.
The national vacancy rate stood at nearly 14% in June.
Commercial vacancies are at their highest rate since the company started reporting the statistic in 2013.
The county with the lowest commercial vacancy rate was Meath at 9.9%, followed by Wexford at 10.6% and Kerry at 11.7%.
At 19.4%, Sligo was the county with the highest commercial vacancy rate, followed by Galway and Donegal (both at 17.2%), and Leitrim and Mayo (both 16.9%).
Dara Keogh, CEO of GeoDirectory said Covid had a role in the rise:
“The latest GeoDirectory Commercial Buildings Report highlights a marginal but continued rise in commercial vacancy rates across Ireland.
"At 13.9%, the national commercial vacancy rate in Q2 2022 was the highest recorded by GeoDirectory since we started compiling these reports in 2013.
"The past two and a half years have proved to be difficult for businesses to navigate, thanks to the impact of Covid-19 restrictions followed by rising inflation and energy costs.”