H-2A visas allow foreign national entry into the U.S. for temporary or seasonal agricultural work. According to the National Center for Farmerworker Health (NCFH) in 2015, there were a total of 139,832 H-2A certified worker positions.  Below is a map of provided by the NCFH detailing the number of H-2A workers certified in 2015 by city, job title, and employer.

Data Source:National Center For Farmworker Health
Accessed 8/30/17