Which Countries Have the Highest Percentage of Gambling Population?

Singapore. Around three-quarters of the population regularly play at casinos. ...
Finland. ...
Australia. ...
Ireland. ...
The United Kingdom. ...
The United States.
Gambling in Macau has been legal since the 1850s when the Portuguese government legalised the activity in the autonomous colony. Since then, Macau has become known worldwide as the "Gambling capital of the world". It is the only place in China where casino gambling is legal.