As of 2020, which country is the leading producer of walnuts?

Black Walnuts are delicious but a mess on the ground underneath the tree once they start falling! Have to admit I had no idea they were grown in China! Great info.....and I thought they were just grown in USA.

I have two walnut trees in my orchard. Delicious walnuts!

Taliesin12, Chocolate cake with chopped walnuts mixed in is yummy. I haven't seen it in shops since I left Australia, but I do bake it myself.

Had no clue that they grew in China. Not particularly fond of them.