Almost six out of every 10 primary schools in Ireland have broadband speeds below what is considered a minimum level of connectivity for access to the internet.
Data released by the Department of Education show 57pc of mainstream primary schools had expected downloads speeds of less than 30Mpbs at the end of the 2018/19 school year.
The Government's National Broadband Plan has set a target of providing download speeds of at least 30Mpbs to all households as an acceptable level.
Details of download speeds in over 3,000 primary schools nationwide released under Freedom of Information legislation also reveal wide variations between schools in different parts of the country.
Figures show that 87pc of schools in Dublin have download speeds in excess of 30Mpbs but only 10pc of schools in Roscommon have similar strong levels of connectivity.
In only four counties - Dublin, Louth, Wicklow and Kildare - do more than half of schools have download speeds of 30Mpbs or faster.
Just over 13pc of schools have a connection of 10Mpbs or less.
In many cases, schools say their internet connection is even slower than the expected rate. Three primary schools - Killasolan National School, Caltra, Co Galway; Scoil Naisiunta Naofa Padraig in Fohenagh, Co Galway; and Scoil Naisiunta na hAille in Monard, Co Tipperary - are listed as having download speeds of just 1Mpbs.