One in five young people admit to experiencing loneliness.
A Spunout survey of people aged between 12 and 34 found it's often combined with feelings of anxiety, sadness and stress.
People aged between 16 and 24 are reporting the highest levels of loneliness, with peak conversations happening between 7pm and 2am.
The report was released to highlight the issue and also to mark Spunout's 20th anniversary.
Dublin had the highest number of texters to the charity's service reporting loneliness, followed by Cork.
Isabel Solan from Spunout, says things can't get better until youth mental health charities are better funded.
Commenting Sinéad Keane, CEO at Spunout, said: “Over the past two decades young people in Ireland have faced a variety of challenges. The data we’re publishing today starkly illustrates how loneliness and isolation have quietly grown into one of the most alarming challenges they now face.
"Each connection we make matters and it’s an unavoidable fact that many of those reaching out to us are doing so from a place of profound isolation, sometimes with nowhere else they feel they can turn
“Without timely intervention, both the human and economic cost of loneliness will continue to rise. However, there are meaningful steps that policymakers can take to foster connection, belonging and support in young people’s lives.”
