The Río Paraguay has a total course of 2600 km, 2300 km of which are navigable and 1200 km of which either border on or pass through Paraguay.
Paraguay population, as recorded in 1983, was 5, 291, 020. The group between 15 - 64 years made the majority, comprising 56% of the entire population. The children between 0 - 14 years accounted for 39% of the population.
Asuncion, city and capital of Paraguay, occupying a promontory and descending to the Paraguay River near its confluence with the Pilcomayo. The city lies 175 feet (53 metres) above sea level.