This woreda is named for the former mining settlement of Dallol, which set the record for the hottest inhabited place on Earth, with an average temperature of 34 °C.
Located at the northernmost point of the Administrative Zone 2, Dallol's territory includes part of the Afar Depression.
The average elevation in this woreda is 660 meters above sea level; high points include Mount Hayle, Mountain Asta-Ale, Mountain Dayma and Mount Dabshado, which are part of the Ethiopian highlands.
As of 2008[update], Afambo has 150 kilometers of all-weather gravel road; about 22.33% of the total population has access to drinking water.
[1] Based on the 2007 Census conducted by the Central Statistical Agency of Ethiopia (CSA), this woreda has a total population of 83,930, of whom 46,973 are men and 36,957 women; with an area of 2,291.18 square kilometers, Dallol has a population density of 36.63.