New figures from the Health Insurance Authority show that the average adult health insurance premium rose by 13% in the first quarter of this year compared to the same time last year.
The average adult premium now stands at €1,685, the HIA said.
The HIA's latest quarterly report shows that Vhi Healthcare retains the largest market share of the health insurance market, followed by Laya Healthcare and Irish Life Health.
There are a total of 351 plans on the market as of April 1, while the majority of consumers have plans with substantial cover in private hospitals (semi-private accommodation).
Just 10% of consumers have plans with cover mainly in public hospitals.
Today's report also shows that the health insurance continues to grow with 46.8% of the population now having private health insurance, a slight increase on last quarter.
Ray Dolan, CEO of the Health Insurance Authority, said the latest statistics show a steady growth in the number of people securing health insurance.
He noted that many are choosing substantial cover, which may reflect an increased awareness and prioritisation of health among the Irish population.
"There have been a number of health insurance price increases across the market in the past 12 months which is attributed to medical inflation and an increase in claims. We would always encourage consumers to shop around and find the best fit and value for their lifestyle needs," Mr Dolan added.