Single parents were paid €533m in social welfare last year.
It's an increase of €22m on 2018.
The One-Parent Family Payment is given to men and women who are bringing up children without their partner's support.
The maximum weekly payment is €203, with a small amount extra for each child, but the scheme is means-tested.
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Last year 39,533 parents collected the payment - up nearly 300 on the year before.
They got a total of €533m - up 4 per cent on 2018.
Nearly 14,000 lone parents in Dublin got payments last year, followed by 3,700 in Cork.
Ten other counties also had more than 1,000 recipients - including Louth, Wicklow and Kerry.
