most of the population concentrated in the cities of Nouakchott and Nouadhibou and along the Senegal River in the southern part of the country
People ::Mauritania
Population:
3,129,486 (July 2009 est.) country comparison to the world: 135
Age structure:
0-14 years: 41% (male 643,436/female 638,793)
15-64 years: 55.7% (male 818,778/female 923,046)
65 years and over: 3.4% (male 44,836/female 60,597) (2009 est.)
Median age:
total: 19.2 years