Because St. Patrick drove them off in the 5th Century.
Too cold.
Ireland
ireland
Ireland has no Snakes.
Ireland.
St. Patrick banished them from Ireland in the 5th century. The only place where you can see a snake in Ireland is in zoos.
Ireland and New Zealand
New Zeland
Belfast, Dublin because there are no snakes in Ireland.
Ireland New Zealand Hawaii
The country of Ireland has no native snake species. The only snakes on the island will be in private collections.
Ireland,Iceland,New Zealand & New Caledonia.
Antarctica, New Zealand, Ireland, Arctic (Add if there are any more)