Are there more venomous or non venomous snakes?

Yes. Australia has the highest number of venomous snakes of all the continents in the world, with seven of the world's ten most venomous snakes being found in the country. Of the 140 species of land snake and 32 species of sea snakes, around 100 are venomous. However, only about twelve of these are venomous enough to kill a human.