From the world atlas.
Land Area Devoted To Cultivating Illicit Opium Poppies
1 Afghanistan 225,000 hectares
2 Myanmar 58,000 hectares
3 Mexico 15,000 hectares
4 India 12,250 hectares
5 Laos 6,200 hectares
6 Pakistan 2,300 hectares
7 Colombia 298 hectares
8 Iran 100 hectares
And for those who aren’t familiar, a hectare is roughly 2.5 acres.
Actually, no I am not wrong.
As far as the U.S. heroin use is it does not matter which country produces the most, it’s FROM WHICH COUNTRY does heroin in the U.S. arrive. It has been increasingly coming from Mexico, and growing there is increasing as well.
https://www.bloomberg.com/news/articles/2017-03-03/america-s-heroin-epidemic-starts-in-mexico