|Time zone||UTC+3 (EAT)|
As a whole, it used to constitute one district in previous administrations, which is now divided into six sub-counties and Constituencies; namely,
- Mandera East which represents Mandera Town
- Mandera Central
- Mandera West
- Mandera North
The county occupies an area of 26,744 km2.
Among the notable incident of Mandera history was the Rhamu Incident of the 1977 in which Somali military invaded Ethiopian defences from the Kenyan side in which a force of 1500 Somali soldiers attacked a border post, and killed 30 Kenyan police officers and soldiers. The Somali army successfully crossed into the Sidamo Region of Ethiopia in the so called Ogaden War.
|Climate chart (explanation)|
Mandera's climate is categorized as arid under the Köppen climate classification. Temperatures tend to be hot throughout the year. Daily temperatures are typically above 30 °C (86 °F), while at night, they can fall to 20 °C (68 °F). Precipitation is extremely low, with the area receiving a minimal amount of rain. Droughts are not unusual, often resulting in significant loss of livestock in rural areas where pastoralism is common.
- Mandera triangle for the border region disputed between Kenya, Somalia and Ethiopia, centered on the city of Mandera