Some of the country’s popular holiday destinations – Kerry, Waterford, and Wexford – are the counties with the highest rates of Covid-19, according to the independent.ie report.
The lowest incidence was seen in Monaghan, Longford, and Mayo.
It comes amid a rise in Covid-19 hospital admissions and an increase in the seven-day positivity rate.
There is concern that new variants of concern BA.4 and BA.5, combined with the less frequent wearing of face masks and a return to regular socialising, could signal another Covid-19 wave although how big it would be is unclear.
The rate of infection is highest in those aged 35-44 followed by 25- to 34-year-olds and people aged 45-54, according to the late May report from the Health Protection Surveillance Centre (HPSC).
On Sunday evening there were 243 patients with Covid-19 in the hospital compared to 192 on the same day the previous week.
The seven-day positivity rate for people having PCR tests stood at 16.7pc on Friday compared to 12.6pc a week earlier.
Only around half of the patients with Covid-19 in hospital are there due to complications of the virus and the rest are being treated for other illnesses and are infected.
High levels of vaccination here continue to provide very good protection from serious diseases.
In his update in mid-May, chief medical officer Dr Tony Holohan said that BA.4 and BA.5 variants of concern, which are sub-lineages of Omicron and are circulating here, are easier to catch and also better at getting around immunity from natural infection and vaccines.