A quick Google turns this up:
Family farms make up 99 percent of America's 2.1 million farms and 89 percent of agricultural production.Jul 20, 2017
That surprises me. I know corporate farms are on the increase and I'd have guessed they produce more of total US ag output than 11%. And, of course, many family farms are very large operations. This seems like good news to me if correct.
Goodlge: percent of US ag production by family farms
You can probably find some more interesting facts by scanning that page.
Thanks!