914 children were treated in hospital for drug or alcohol-related illnesses last year.
According to freedom of information figures, nearly two thirds were girls.
The conditions include drug or alcohol poisoning, a mental health disorder due to substance misuse, and new-born children affected by their mothers' use of drugs or alcohol.
The figures are spread throughout the country and of those hospitalised last year, 228 children were aged less than nine years old. 686 children were aged between 10 and 17 - with over twice as many girl as boys.
Woman Dies In Waters At Wicklow Beach
Wicklow Housing Remains Ireland's Most Expensive Outside Dublin
Wicklow Mountains National Park Issues Wildfire Warning After Days of Blazes at Glencree
39 Jobs To Go In Carnew As ProAmpac Plan To Move Production To Donegal
12 New Charities Registered In Wicklow Last Year As National Concerns Rise By 38%
