An Irish National Teachers' Organisation Survey shows there are 951 vacant posts nationwide.
Schools are increasingly asking unqualified or teachers who aren't registered with the Teaching Council to cover some absences.
The INTO has described it as an enormous crisis.
Tender Issued For DART Charging Infrastructure In Wicklow Station
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