Garmeh County () is in North Khorasan province, Iran. Its capital is the city of Garmeh.
In 2008, Golestan Rural District, parts of Miyan Dasht Rural District, and the city of Daraq were separated from Jajrom County in the establishment of Garmeh County, which was divided into one district of two rural districts, with Garmeh as its capital.
At the time of the 2011 National Census, the county's population was 24,599 people in 7,039 households. The 2016 census measured the population of the county as 25,475 in 7,748 households.
Garmeh County's population history and administrative structure over two consecutive censuses are shown in the following table.