What is the biggest cities in western lowlands?

* Population: 2,182,525

* Capital: Guatemala City

* Other major cities: Mixco, Villa Nueva, Petapa, San Miguel Petapa

El Salvador

* Population: 6,637,955

* Capital: San Salvador

* Other major cities: Soyapango, Santa Ana, San Miguel, Mejicanos

Honduras

* Population: 8,295,531

* Capital: Tegucigalpa

* Other major cities: San Pedro Sula, La Ceiba, El Progreso, Choloma

Nicaragua

* Population: 6,150,559

* Capital: Managua

* Other major cities: León, Chinandega, Matagalpa, Masaya

Costa Rica

* Population: 4,851,351

* Capital: San José

* Other major cities: Alajuela, Cartago, Heredia, Puerto Limón