The Extension Master Gardener National Committee compiles a report of Master Gardener activity, every few years. Recently, they released the report for 2018, with all but three states reporting (Massachusetts does not have an Extension Master Gardener Program).
You can download a PDF copy of the report, below:
If you would like to compare the 2018 numbers with past reports, you can access the 2016, 2014, and 2009 reports, here: https://articles.extension.org/pages/27284/extension-master-gardener-public-value-reports .
