Libya is a large country with a relatively small population, but the population is concentrated very narrowly along the coast. Population density is about 50 persons per km² (130/sq. mi.) in the two northern regions of Tripolitania and Cyrenaica, but falls to less than one person per km² (2.6/sq. mi.) elsewhere.
Tripoli is the de jure capital city and the largest city of Libya. Tripoli, with its metropolitan area, has a population of about 1.1 million people. The city is located in the northwestern part of Libya on the edge of the desert, on a point of rocky land projecting into the Mediterranean and forming a bay.
Within Libya as many as five different climatic zones have been recognized, but the dominant climatic influences are Mediterranean and Saharan.