Garissa County  is an administrative County in Kenya. Its capital and largest urban area is Garissa. The county had a population of 841,353 at the 2019 Census, and a land area of about 44,753 km² .

Garissa county has a total population of 841,353 persons of which 458,975 are males, 382,344 females and 34 intersex person. There is a total of 141,394 household with an average size of 5.9 persons per house hold. It has a population density of 19 persons per square kilometre.

The main crops grown are maize, greengrams, sorghum, rice, cowpeas, bananas, mangoes, pawpaw, water melon, tomatoes, capsicum and onions. Farmers have an average size of 1.5 hectares for small scale and 20 hectares for large scale. cattle (boran), goats (galla), sheep (black headed Persian) and camel (dromedary one humped) are kept as the main livestock for producing key products of meat, milk, hides and skins.