There were 1,251 drug seizures in Irish prisons last year.
There were 479 in Wheatfield Prison in Dublin - which was the highest in the country.
According to Freedom of Information figures, Mountjoy, Cloverhill and Limerick jails were the the next highest.
There were 116 drug seizures in Limerick prison last year, with Castlerea, Cork, and Midlands jails all having at least 30.
The total amount of seizures across all jails was exactly the same in 2020 as in 2019.
Almost 1,200 Wicklow Children Waiting for Early Years Places
Wicklow Hosepipe Ban Extended As Supplies Remain Under Pressure
Wicklow Rents Rise Again As National Market Cools
UCD Study To Lay Bare The Blight Of 'Sheep Worrying' Across Wicklow
“A Secure Home In Time For Christmas” - Boost For Blessington With New Cost Rental Plans