Faruj County () is in North Khorasan province, Iran. Its capital is the city of Faruj.
The village of Titkanlu was converted to a city in 2009.
At the time of the 2006 National Census, the county's population was 48,743 in 12,947 households. The population was counted as 52,364 people in 15,241 households at the 2011 census, and as 49,271 in 15,469 households at the 2016 census.
Faruj County's population history and administrative structure over three consecutive censuses are shown in the following table.