South America is far bigger, more populous and slightly richer per person than Central America. The seven Central American countries (Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and Panama) cover about 523,780 km² and held roughly 51 million people in 2021, while the twelve countries of South America cover about 17.84 million km², some 34 times as much, with about 434 million people in 2021. Average output per person was about $6,880 in Central America (2023) against about $8,340 in South America (2022 estimate). Size is only part of it: Central America is a narrow isthmus that geographers treat as the southern tip of North America, while South America is a continent in its own right, and the two meet at the Darién Gap on the Panama–Colombia border.
Is Central America part of North America or South America?
In the English-speaking convention used by most atlases, Central America is a subregion of North America. Its land runs from the borders of Mexico in the north-west to the Atrato River in Colombia in the south-east, where it joins the Pacific lowlands of South America.
South America, by contrast, is counted as a separate continent with twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay and Venezuela. French Guiana is part of France, and the Falkland Islands and South Georgia are British overseas territories. Almost all of its mainland sits on the South American Plate.
The answer changes with language. In Spanish- and Portuguese-speaking countries, schools usually teach a single continent, América, divided into North America, Central America, the Caribbean and South America. Under that model Central America is neither “North” nor “South” but a subregion of its own. Spanish speakers also distinguish América Central, the seven-country geographic area, from Centroamérica, which often means the five former members of the Federal Republic of Central America and their shared history.
Panama is the case that confuses most people. It lies on both sides of the Panama Canal, and some writers put the continental divide at the canal itself. The more common view runs the boundary along the Darién watershed on the Colombia border, which leaves all of Panama in North America; our guide on whether Panama is in North or South America walks through that argument in detail.
Which is bigger: 523,780 km² or 17.84 million km²?
There is no contest. South America ranks fourth among the continents by area, after Asia, Africa and North America. Central America would fit inside it about 34 times over. Brazil alone, at 8,514,877 km², is roughly 16 times the area of all seven Central American countries combined, and Argentina (2,766,890 km²) is more than five times larger.
Inside Central America the countries are small. Nicaragua is the largest at 130,370 km², followed by Honduras (112,090 km²) and Guatemala (108,889 km²). El Salvador, at 21,041 km², is the smallest and also the only one with no Caribbean coast. Belize covers 22,966 km². The whole isthmus tapers from several hundred kilometres wide in Guatemala to a strip of land in Panama, where the Panama Canal crosses it in just 82 km.
South America’s shape is the opposite: broad in the north, where the Amazon basin spreads across Brazil, Peru, Colombia and their neighbours, and narrowing to the long Chilean coast and Tierra del Fuego in the south.
Which has more people: about 51 million or about 434 million?
South America has roughly eight and a half times as many people. Wikipedia’s country table puts Central America at 50,956,791 in 2021, while South America’s 2021 estimate is 434,254,119. Brazil, with 214.3 million in 2021, has about half the continent’s population on its own, followed by Colombia (51.5 million), Argentina (45.3 million), Peru (33.7 million) and Venezuela (28.2 million).
The picture flips when you look at density. Because Central America packs its people into a small space, it averages about 97 people per km², against about 21 per km² in South America. El Salvador, with 6.3 million people on 21,041 km², is one of the most crowded countries in the Americas. Guatemala is the most populous Central American state, at 17.6 million in 2021, and Belize the least, at about 400,000. Much of the population of Guatemala, Honduras and Costa Rica lives in highland valleys between the volcanic ranges, where the soils are fertile and the air cooler than on the coasts.
South America’s people, in contrast, cluster near the coasts. Cities such as São Paulo, Buenos Aires, Lima and Rio de Janeiro hold enormous populations, while the interior of the Amazon and the far south of Patagonia remain thinly settled. Guyana (about 805,000 people) and Suriname (about 613,000) are the smallest independent states on the continent by population.
Which is richer per person, Panama or Uruguay, Honduras or Brazil?
On average, South America is somewhat richer, but the gap between the two regions is much smaller than the gaps inside each of them. Wikipedia’s regional figures put Central America’s GDP per capita at about $6,880 at exchange rates in 2023 (about $14,019 in purchasing-power terms), and South America’s at about $8,340 in 2022. The figures come from different years, so treat the difference as approximate.
Country by country, using IMF World Economic Outlook estimates quoted on Wikipedia, the spread is wide. Panama, whose economy is built around the canal, banking and shipping, reaches about $20,100 per person (2025 estimate). Honduras is at about $3,640 (2025). In South America, Guyana, transformed by offshore oil drilling since 2019, now leads at about $33,200 (2026 estimate), ahead of Uruguay at about $27,600, while Brazil, the giant economy that produces roughly half the continent’s GDP, comes in at about $12,300 (2026 estimate).
Both regions have long depended on exports of raw materials. South America’s mineral wealth (copper in Chile and Peru, iron ore in Brazil, oil in Venezuela) has brought repeated booms and busts. Central America’s exports grew around coffee and bananas; by the 1930s the United Fruit Company held about 14,000 km² of land in Central America and the Caribbean and was the largest landowner in Guatemala, which is where the phrase “banana republic” comes from.
Which is higher: Volcán Tajumulco or Aconcagua?
South America wins by more than 2.5 km. Aconcagua, in Argentina’s Mendoza Province about 15 km from the Chilean border, rises to nearly 7,000 m: 6,962 m (22,841 ft) in the long-standing figure and 6,967 m in a more recent survey. It is the highest mountain outside Asia and the top of the Andes, the world’s longest mountain range. Central America’s highest point is Volcán Tajumulco in Guatemala’s San Marcos department, at 4,203 m (13,789 ft), part of the Sierra Madre de Chiapas.
The mountains themselves are different in kind. Aconcagua was once an active volcano, but its activity stopped in the Miocene, about 8 to 10 million years ago; it was raised by the Nazca Plate diving beneath the South American Plate. Central America’s high ground is dominated by live volcanoes: the region has more than 70 active ones, 41 of them in Guatemala and El Salvador. Arenal in Costa Rica erupted in 1968 and killed 87 people, and Guatemala’s Santa María has been erupting on and off since 2013. Our guide to the highest mountain in South America covers Aconcagua’s climbing history and its rivals in the Andes.
Water follows the same pattern of scale. Central America’s largest lake, Lake Nicaragua, covers 8,264 km², only slightly smaller than Lake Titicaca on the Peru–Bolivia border. But no Central American river comes close to the Amazon, the largest river in the world by discharge.
Where does the land bridge break: the Darién Gap and the Isthmus of Panama
The two regions have been physically joined for only about 3 million years, a short time in geological terms. As the Isthmus of Panama rose from the sea floor, it split the Atlantic from the Pacific and opened a land route for animals. In what scientists call the Great American Interchange, which sped up about 2.7 million years ago, opossums and porcupines moved north while cougars, jaguars, bears, deer, tapirs and camelids moved south.
Today the junction is the Darién Gap, a roadless stretch of rainforest, swamp and mountains across Panama’s Darién Province and Colombia’s Chocó Department. The Pan-American Highway stops at Yaviza in Panama and starts again at Turbo in Colombia, roughly 106 km away. The Colombian side is mostly the flat, marshy delta of the Atrato River; the Panamanian side climbs to 1,845 m at Cerro Tacarcuna. Attempts to build a road in the 1970s and 1990s failed.
The other great crossing point runs the other way. The Panama Canal, opened on 15 August 1914, links the Caribbean and the Pacific across the narrowest part of the isthmus, lifting ships 26 m to Gatun Lake. A third, wider set of locks opened for commercial traffic on 26 June 2016.
How do climate, languages and independence dates differ?
Central America is entirely tropical. Trade winds shape its weather: the hottest month is usually April, just before the rainy season, and hurricanes from the Caribbean are a recurring danger. Hurricane Mitch in 1998 killed at least 11,374 people across the region, the deadliest hurricane in Central American history. South America spans almost every climate zone, from the Amazon, where average temperatures sit around 27 °C, to the Atacama Desert, the driest non-polar place on Earth, and the cold, wet tip of Tierra del Fuego.
Language is one of the few things the regions largely share. Spanish is the official language of six Central American countries, while Belize uses English and also has many speakers of Kriol, Spanish, Mayan languages and Garifuna. In South America, Spanish and Portuguese each have about 200 million speakers, the Portuguese almost all in Brazil. Guyana uses English, Suriname Dutch and French Guiana French, and Quechua, Aymara and Guaraní are recognised alongside Spanish in several Andean and southern states.
The independence stories run in parallel but end differently. Central America declared independence from Spain on 15 September 1821, was briefly annexed by the First Mexican Empire, and then formed the Federal Republic of Central America from 1823 until it broke apart between 1838 and 1841. Panama separated from Colombia on 3 November 1903, and Belize became independent from Britain only on 21 September 1981. In South America, Simón Bolívar and José de San Martín led the wars against Spain, which ended with the Battle of Ayacucho in 1824, while Brazil declared itself an independent kingdom in 1822. Guyana followed in 1966 and Suriname in 1975. For the full roster of states south of Panama, our guide to the countries in South America lists each one with its capital and size.