important location along the Mona Passage - a key shipping lane to the Panama Canal; San Juan is one of the biggest and best natural harbors in the Caribbean; many small rivers and high central mountains ensure land is well watered; south coast relatively dry; fertile coastal plain belt in north
People
Puerto Rico
Population:
3,958,128 (July 2008 est.)
Age structure:
0-14 years: 20.5% (male 415,141/female 396,782) 15-64 years: 66% (male 1,254,416/female 1,358,229) 65 years and over: 13.5% (male 229,727/female 303,833) (2008 est.)
Median age:
total: 35.6 years male: 33.8 years female: 37.3 years (2008 est.)
Population growth rate:
0.369% (2008 est.)