Question: which country has the most autism?
Answer: Canada. The rate of autism diagnoses in Canada was 1 in 450 in 2003. ... 
United States. CDC's most recent estimate is that 1 out of every 59 children, or 16.8 per 1,000, have some form of ASD as of 2014. ... 
Venezuela. ... 
Hong Kong. ... 
Japan. ... 
Israel. ... 
Saudi Arabia. ... 
Denmark.