The three largest California counties in terms of dollar value of farm production – Kern, Fresno, and Tulare, which produce half of the state’s farm output – have workforces which are 75% foreign born.
Five farm product account for 60% of California’s farm production by value of product:
Diary: more than 50% foreign born; Grapes: 70% foreign born; Almonds: 70% foreign-born; Strawberries: 70% foreign born; Cattle: over 50% foreign born.
This data from the California Department of Food and Agriculture, California Farm Bureau Federation, the California Almond Board, UC Berkeley Labor Center, and University of California, Davis. Go here.