37.5% of the US population was involved in agriculture in 1900 and today less than half of one percent are in that business. We still have all the food we need, as well as supply other parts of the world.
There are 2.2 million farms and 50.4% of farms are less than 99 acres in size, with the average age of a farmer at 57.1 years old.
We export $115.5 billion of farm products a year. The top five farming counties in the US are in California. All data taken from the census.