Portlaoise had the second highest level in the country.
Nearly 400 litres of homemade alcohol was seized in Irish prisons last year.
According to freedom of information figures, nearly half of the total was found in Mountjoy jail.
A total of 391.5 litres of hooch was seized in eight jails across the country last year.
John Cuffe is a criminologist and former prison officer - he says it's been popular among inmates for many years.
49 per cent of last year's total was seized in Mountjoy Prison - involving 192 litres of hooch.
That's followed by 82 litres in Portlaoise, 41 in Wheatfield Prison in Dublin and 35 in Cork jail.
The total figure is almost exactly the same as 2019, when 395.5 litres of hooch was seized.
Westmeath Gardaí Confiscate €7k In Illegal Cannabinoids
Laois Councillor Honoured For 40 Years Of Public Service
Laois Man Appears In Court After €8m Cocaine Find
Revenue Offering Help For Couriers After Fastway Closure
Anonymous Westmeath Man Donates Unclaimed Cash To Charity
Offaly Fianna Fail Councillor Adds To Scrutiny Of Taoiseach
Midlands Macra Clubs Shine In National Awards
High Court To Decide On Seizing Cars Used By Enoch Burke
Man Charged Over €8m Cocaine Seizure in Laois
Laois TD Criticises Rural Planning Requirements
Westmeath Company Up For Business & Finance Award
Former Defence Force Member Jailed For Six Years Over 1981 Rape
Midlands Founded Dance School Wins Big At National Awards
Offaly And Laois Outpace Westmeath In Social Housing Rollout
Offaly MEP Eyes Growth For Irish Whiskey During EU-India Trade Talks
Polish Pilot Found Guilty Of €8.4m Midlands Drug Smuggling Operation
Offaly Councillor Questions Housing Scheme
Medical Conditions Linked To Psoriasis In Focus For Awareness Week
Laois Company Named Finalist In National Startup Awards
Water Quality The Focus At Agricultural Conference In Laois