Isle of Anglesey County Council or Cyngor Sir Ynys Môn is the local authority for Anglesey, which includes such towns as Beaumaris, Amlwch, Aberffraw, Holyhead, Rhosneigr and Llanfair PG.
Isle of Anglesey is one of the six local authorities in GwE, the fully bilingual School Effectiveness and Improvement Service for North Wales.
The authority has one of the smallest school populations numbering under 10,000 students. Isle of Anglesey CC has responsiblity for 49 schools.
There are 43 primary schools with an average size of 129 pupils, ranging from Ysgol Gymuned Garreglefn with just over 20 pupils, to Ysgol Cybi in Holyhead with over 425 pupils.
There are five secondary schools all of which have sixth forms.
There are no through schools.
Isle of Anglesey has one special school which has post-16 provision.
Almost all of Anglesey's primary schools are Welsh medium—one is dual language and one is English medium. Four of the secondary schools are Bilingual and one is English medium.