Nairobi, city, capital of Kenya. It is situated in the south-central part of the country, in the highlands at an elevation of about 5,500 feet (1,680 metres). The city lies 300 miles (480 km) northwest of Mombasa, Kenya’s major port on the Indian Ocean.

The city originated in the late 1890s as a colonial railway settlement, taking its name from a water hole known to the Maasai people as Enkare Nairobi (“Cold Water”). When the railhead arrived there in 1899, the British colonial capital of Ukamba province was transferred from Machakos (now Masaku) to the site, and in 1905 Nairobi became the capital of the British East Africa Protectorate. From about 1900 onward, when a small Indian bazaar was established at Nairobi, the city was also a trading centre.

As a governmental centre, Nairobi subsequently attracted a stream of migrants from rural Kenya that made it one of the largest cities in tropical Africa. It was declared a municipality in 1919 and was granted city status in 1954. When Kenya gained independence in 1963, Nairobi remained the capital. The new country’s constitution expanded the city’s municipal area; the enlarged municipality is an independent unit administered by the Nairobi City Council.

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Nairobi is the principal industrial centre of the country. The railways are the largest single industrial employer. Light-manufacturing industries produce beverages, cigarettes, and processed food. Tourism is also important. The city is located near eastern Africa’s agricultural heartland, and a number of primary products are routed through Nairobi before being exported via Mombasa. Nairobi also plays an important role in the community of eastern African states; it is the headquarters of important regional railways, harbours, and airways corporations.

The city is well served by roads and railways. The main routes are southeast and south to Mombasa and Tanzania and northwest via the highlands to Lake Victoria and Uganda. Jomo Kenyatta International Airport, 9 miles (15 km) to the southwest, is one of the chief international airports in Africa.

Among the city’s architectural landmarks are the Kenyatta International Conference Centre, the Parliament Building and city hall, the law courts, the Roman Catholic cathedral, and the Jamia Mosque. There is also a well-planned commercial centre.

Nairobi is home to several educational institutions, including the University of Nairobi (founded in 1956 as the Royal Technical College of East Africa), Kenyatta University College (founded in 1972 as a constituent part of the University of Nairobi), Kenya Polytechnic University College (1961), and Kenya Institute of Administration (1961). Other institutions include the Kenya National Archives, the National Museum of Kenya (natural history), the McMillan Memorial Library, and the Kenya National Theatre. Nairobi National Park, a large reserve for numerous mammals, reptiles, and birds, is a popular tourist attraction. Pop. (1999) 2,143,254; (2009) 3,133,518.

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The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Michele Metych.

Kenya, country in East Africa famed for its scenic landscapes and vast wildlife preserves. Its Indian Ocean coast provided historically important ports by which goods from Arabian and Asian traders have entered the continent for many centuries. Along that coast, which holds some of the finest beaches in Africa, are predominantly Muslim Swahili cities such as Mombasa, a historic centre that has contributed much to the musical and culinary heritage of the country. Inland are populous highlands famed for both their tea plantations, an economic staple during the British colonial era, and their variety of animal species, including lions, elephants, cheetahs, rhinoceroses, and hippopotamuses. Kenya’s western provinces, marked by lakes and rivers, are forested, while a small portion of the north is desert and semidesert. The country’s diverse wildlife and panoramic geography draw large numbers of European and North American visitors, and tourism is an important contributor to Kenya’s economy.

The capital of Kenya is Nairobi, a sprawling city that, like many other African metropolises, is a study in contrasts, with modern skyscrapers looking out over vast shantytowns in the distance, many harbouring refugees fleeing civil wars in neighbouring countries. Older neighbourhoods, some of them prosperous, tend to be ethnically mixed and well served by utilities and other amenities, while the tents and hastily assembled shacks that ring the city tend to be organized tribally and even locally, inasmuch as in some instances whole rural villages have removed themselves to the more promising city.

Quick Facts
Kenya
See article: flag of Kenya
Audio File: National anthem of Kenya
Head Of State And Government4:
President: William Ruto
Capital:
Nairobi
Population:
(2025 est.) 53,477,000
Form Of Government:
unitary multiparty republic with two legislative houses1 (Senate [682]; National Assembly [3503])
Official Languages:
Swahili; English
Official Religion:
none
Official Name:
Jamhuri ya Kenya (Swahili); Republic of Kenya (English)
Total Area (Sq Km):
582,646
Total Area (Sq Mi):
224,960
Monetary Unit:
Kenyan shilling (K Sh)
Population Rank:
(2025) 28
Population Projection 2030:
64,296,000
Density: Persons Per Sq Mi:
(2025) 237.7
Density: Persons Per Sq Km:
(2025) 91.8
Urban-Rural Population:
Urban: (2019) 31.2%
Rural: (2019) 68.8%
Life Expectancy At Birth:
Male: (2022) 68 years
Female: (2022) 71.4 years
Literacy: Percentage Of Population Age 15 And Over Literate:
Male: (2022) 86%
Female: (2022) 80%
Gni (U.S.$ ’000,000):
(2023) 116,961
Gni Per Capita (U.S.$):
(2023) 2,110
  1. A new constitution promulgated August 27, 2010, provided for the establishment of a 68-seat Senate in 2013.
  2. Includes 16 nonelective seats reserved for women, 2 reserved for youth, 2 reserved for people with disabilities, and 1 ex officio member.
  3. Includes 12 nonelective seats and 1 ex officio member.
  4. The 2010 constitution abolished the post of prime minister effective from the 2013 presidential election.

With a long history of musical and artistic expression, Kenya enjoys a rich tradition of oral and written literature, including many fables that speak to the virtues of determination and perseverance, important and widely shared values, given the country’s experience during the struggle for independence. Kikuyu writer Ngugi wa Thiong’o, one of the country’s best-known authors internationally, addresses these concerns in his remarks on one folkloric figure:

Hare being small, weak, but full of innovative wit, was our hero. We identified with him as he struggled against the brutes of prey like lion, leopard, and hyena. His victories were our victories and we learnt that the apparently weak can outwit the strong.

Kenya’s many peoples are well known to outsiders, largely because of the British colonial administration’s openness to study. Anthropologists and other social scientists have documented for generations the lives of the Maasai, Luhya, Luo, Kalenjin, and Kikuyu peoples, to name only some of the groups. Adding to the country’s ethnic diversity are European and Asian immigrants from many nations. Kenyans proudly embrace their individual cultures and traditions, yet they are also cognizant of the importance of national solidarity; a motto of “Harambee” (Swahili: “Pulling together”) has been stressed by Kenya’s government since independence.

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Land

Bisected horizontally by the Equator and vertically by longitude 38° E, Kenya is bordered to the north by South Sudan and Ethiopia, to the east by Somalia and the Indian Ocean, to the south by Tanzania, and to the west by Lake Victoria and Uganda.

Relief

The 38th meridian divides Kenya into two halves of striking contrast. While the eastern half slopes gently to the coral-backed seashore, the western portion rises more abruptly through a series of hills and plateaus to the Eastern Rift Valley, known in Kenya as the Central Rift. West of the Rift is a westward-sloping plateau, the lowest part of which is occupied by Lake Victoria. Within this basic framework, Kenya is divided into the following geographic regions: the Lake Victoria basin, the Rift Valley and associated highlands, the eastern plateau forelands, the semiarid and arid areas of the north and south, and the coast.

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The Lake Victoria basin is part of a plateau rising eastward from the lakeshore to the Rift highlands. The lower part, forming the lake basin proper, is itself a plateau area lying between 3,000 and 4,000 feet (900 and 1,200 metres) above sea level. The rolling grassland of this plateau is cut almost in half by the Kano Plain, into which an arm of the lake known as Winam Gulf (Kavirondo Gulf) extends eastward for 50 miles (80 km). The floor of the Kano Plain merges north and south into highlands characterized by a number of extinct volcanoes. These include Mount Elgon, rising to 14,178 feet (4,321 metres) at the Ugandan border on the extreme north of the basin.

The Rift Valley splits the highland region into two sections: the Mau Escarpment to the west and the Aberdare Range to the east. The valley itself is 30 to 80 miles (50 to 130 km) wide, and its floor rises from about 1,500 feet (450 metres) in the north around Lake Turkana (Lake Rudolf) to over 7,000 feet (2,100 metres) at Lake Naivasha but then drops to 2,000 feet (600 metres) at the Tanzanian border in the south. The floor of the Rift is occupied by a chain of shallow lakes separated by extinct volcanoes. Lake Naivasha is the largest of these; the others include Lakes Magadi, Nakuru, Bogoria, and Baringo. West of the valley the diverse highland area runs from the thick lava block of the Mau Escarpment–Mount Tinderet complex northward to the Uasin Gishu Plateau. East of the Rift the Aberdare Range rises to nearly 10,000 feet (3,000 metres). The eastern highlands extend from the Ngong Hills and the uplands bordering Tanzania northward to the Laikipia Escarpment. Farther east they are linked by the Nyeri saddle to Mount Kenya, the country’s highest peak, at 17,058 feet (5,199 metres). The relief of both highlands is complex and includes plains, deep valleys, and mountains. Important in the historic and economic development of Kenya, the region was the focus of European settlement.

The eastern plateau forelands, located just east of the Rift highlands, constitute a vast plateau of ancient rocks gently sloping to the coastal plain. They are a region of scattered hills and striking elevated formations, the most prominent being the hills of Taita, Kasigau, Machakos, and Kitui. These hills, containing the area of more favourable climate, are surrounded by regions historically prone to famine.

The semiarid and arid areas in the north and northeast are part of a vast region extending from the Ugandan border through Lake Rudolf to the plateau area between the Ethiopian and Kenyan highlands. (The area from Lake Magadi southward, though not as arid, has the same characteristics.) Although tree and grass cover is scanty there, the areas of true desert are limited to the Chalbi Desert east of Lake Rudolf. The movement of people and livestock is strictly limited by the availability of water.

The coastal plain proper, which runs for about 250 miles (400 km) along the Indian Ocean, is a narrow strip only about 10 miles (16 km) wide in the south, but in the Tana River lowlands to the north it broadens to about 100 miles (160 km). Farther northeast it merges into the lowlands of Somalia. The excellent natural harbours include that of Mombasa, which is one of the best in East Africa.

Drainage

Kenya’s drainage pattern originated when a large oval dome of rock arose in the west-central part of the country and created the Central Rift. This dome produced a primeval watershed from which rivers once drained eastward to the Indian Ocean and westward to the Congo River system and the Atlantic Ocean. Still following this ancient pattern are the Tana and Galana rivers, which rise in the eastern highlands and flow roughly southeast to the Indian Ocean. West of the Central Rift, however, the major streams now drain into Lake Victoria. These include the Nzoia, Yala, Mara, and Nyando rivers. Between the eastern and western systems, the rifting of the dome’s crust has created a complex pattern of internal streams that feed the major lakes.

There are no major groundwater basins, and, apart from the Tana River, most of the rivers in Kenya are short and often disappear during the dry season. Lake Victoria, with a surface area of 26,828 square miles (69,484 square km), is the largest lake in Africa, the second largest freshwater body in the world, and a major reservoir of the Nile River. Lake Rudolf, some 150 miles (240 km) long and 20 miles (30 km) wide, is the largest of the country’s Rift Valley lakes. Other lakes are rather small, and their surface areas fluctuate considerably.

Soils

In the Lake Victoria basin, lava deposits have produced fertile and sandy loam soils in the plateaus north and south of Winam Bay, while the volcanic pile of Mount Elgon produces highly fertile volcanic soils well known for coffee and tea production. The Rift Valley and associated highlands are composed of fertile dark brown loams developed on younger volcanic deposits.

The most widespread soils in Kenya, however, are the sandy soils of the semiarid regions between the coast and the Rift highlands. To the north of the Rift are vast areas covered by red desert soils, mainly sandy loams. Kenya’s soils are subject to widespread erosion largely because of the lack of forest cover; overgrazing and cultivation, especially in the arid and semiarid regions, also contribute to soil loss.