Kenya vs Tanzania: Side-by-Side Comparison
Tanzania is the bigger country: it covers 945,087 km² against Kenya's 580,367 km² and has about 68.6 million people to Kenya's 56.4 million (2024 UN estimates). Kenya, however, has the larger economy, with a 2024 GDP of about $124 billion against Tanzania's $79 billion, and roughly twice the output per person. The two neighbours share a 775 km border, the Serengeti–Maasai Mara ecosystem and the Swahili language.
Key Differences at a Glance
- Size: Tanzania is about 1.6 times larger by area and has about 12 million more people.
- Economy: Kenya's GDP is about 1.6 times Tanzania's; GDP per capita is about $2,200 in Kenya versus about $1,150 in Tanzania.
- Capital: Kenya's capital and largest city is Nairobi. Tanzania's official capital is Dodoma, while Dar es Salaam is its largest city and main port.
- Language: both use Swahili and English, but Swahili is more dominant in everyday and official life in Tanzania; English is stronger in Kenyan business and education.
- Landmarks: Kenya has the Maasai Mara, Mount Kenya and Amboseli; Tanzania has Mount Kilimanjaro, the Serengeti, the Ngorongoro Crater and Zanzibar.
| Metric | Kenya | Tanzania |
|---|---|---|
| Capital | Nairobi | Dodoma |
| Largest city | Nairobi | Dar es Salaam |
| Region (UN) | East Africa | East Africa |
| Population (2024, UN) | about 56.4 million | about 68.6 million |
| Area | 580,367 km² | 945,087 km² |
| Population density | about 97 per km² | about 73 per km² |
| GDP (nominal, 2024) | about $124 billion | about $79 billion |
| GDP per capita (2024) | about $2,200 | about $1,150 |
| Currency | Kenyan shilling (KES) | Tanzanian shilling (TZS) |
| Official language(s) | English, Swahili | Swahili, English |
| Government | Presidential republic | Presidential republic (union with semi-autonomous Zanzibar) |
| Life expectancy (2023) | about 64 years | about 67 years |
| Independence | 12 December 1963 (from the UK) | 9 December 1961 (Tanganyika, from the UK); union with Zanzibar 1964 |
| Time zone | UTC+3 | UTC+3 |
| Calling code | +254 | +255 |
| Drives on the | Left | Left |
| Landlocked | No | No |
Sources: population from UN World Population Prospects 2024; GDP from IMF/World Bank 2024 estimates (nominal US dollars, so values move with exchange rates); GDP per capita calculated from those two figures; life expectancy from UN/World Bank 2023 data.
Population
Tanzania has the larger population, with about 68.6 million people compared with Kenya's 56.4 million according to 2024 UN estimates, a gap of roughly 12 million. The two are the most populous members of the East African Community after DR Congo, and Tanzania's lead is widening because its fertility rate is higher than Kenya's.
Both countries have young, fast-growing populations, so each adds more than a million people a year. Their settlement patterns follow the land. Kenyans cluster in the fertile central highlands around Nairobi, the Rift Valley and the densely settled shores of Lake Victoria, while the arid north is thinly inhabited. Tanzania's population is spread over a larger territory, concentrated near Lake Victoria (around Mwanza), along the Indian Ocean coast around Dar es Salaam, on Zanzibar and in the northern highlands around Arusha and Moshi, with the central plateau more sparsely settled. Kenya is the more densely populated of the two, with about 97 people per km² against about 73 in Tanzania.
Urbanisation is rising quickly in both, but neither is yet majority-urban. Kenya's growth centres on Nairobi and Mombasa; Tanzania's is led by Dar es Salaam, one of Africa's fastest-growing cities, alongside Mwanza, Arusha and the official capital, Dodoma.
Area and Geography
Tanzania is the larger country by area, covering 945,087 km² against Kenya's 580,367 km², roughly 1.6 times the territory. Both front the Indian Ocean, so neither is landlocked, and their ports at Mombasa (Kenya) and Dar es Salaam (Tanzania) compete to serve landlocked neighbours such as Uganda, Rwanda, Burundi, South Sudan and eastern DR Congo.
The two share some of Africa's most dramatic geography. Both straddle the Great Rift Valley and border Lake Victoria, the continent's largest lake. Kenya is defined by its central highlands, Mount Kenya (5,199 m), the Rift Valley lakes, the savanna of the Maasai Mara and Amboseli, a humid coastal belt and a semi-arid north around Lake Turkana. Tanzania contains Mount Kilimanjaro (5,895 m), Africa's highest peak, the Serengeti plains, the Ngorongoro Crater, parts of Lakes Tanganyika and Malawi (Nyasa), and the Zanzibar archipelago. Both have a tropical climate that is hot and humid on the coast, temperate in the highlands and drier in the interior, with two rainy seasons in most areas.
The Kenya–Tanzania Border
Kenya and Tanzania share a land border of about 775 km that runs from the eastern shore of Lake Victoria south-east to the Indian Ocean near Vanga (Kenya) and Jasini/Horohoro (Tanzania). Most of it is a straight line agreed between Britain and Germany in 1886 and 1890, with a kink that leaves Mount Kilimanjaro on the Tanzanian side; the peak towers over Kenya's Amboseli National Park just north of the line.
The border cuts across the Serengeti–Mara ecosystem. The Maasai Mara in Kenya is the northern tip of the Serengeti, and the Great Migration of wildebeest and zebra usually crosses into the Mara from about July to October before returning south. Maasai communities live on both sides. The main road crossings are Namanga (on the Nairobi–Arusha highway, run as a one-stop border post), Isebania–Sirari near Lake Victoria, Taveta–Holili near Kilimanjaro, and Lunga Lunga–Horohoro on the coast road between Mombasa and Tanga.
Economy
Kenya has the larger economy, with a 2024 nominal GDP of about $124 billion against Tanzania's $79 billion (IMF/World Bank estimates), even though Tanzania has more people. Kenya is East Africa's commercial and financial hub, with strengths in services, banking, mobile money (M-Pesa), technology, tea, cut flowers and horticulture, manufacturing and tourism. Tanzania's economy leans more on agriculture, which employs a majority of the workforce, together with gold mining, a growing natural-gas sector, and tourism built around Kilimanjaro, the Serengeti and Zanzibar.
GDP per capita widens the gap. Kenya's $124 billion shared among 56.4 million people works out to about $2,200 per person, while Tanzania's $79 billion across 68.6 million people gives about $1,150. Output per head is therefore close to twice as high in Kenya. Tanzania has, however, grown steadily at around 5–6% a year, and both are building standard-gauge railways: Kenya's Mombasa–Nairobi line opened in 2017, and Tanzania's electric line from Dar es Salaam to Dodoma began passenger services in 2024.
Language and Culture
Swahili (Kiswahili) and English are used officially in both countries, a legacy of Swahili coastal culture and British rule. Swahili is especially central to Tanzania's national identity: after independence it was promoted as the language of government and primary schooling, which helped unite more than 120 ethnic groups. In Kenya, English dominates higher education, courts and business, while Swahili is the national language and lingua franca, alongside Kikuyu, Luhya, Luo, Kalenjin, Kamba and many other languages.
Culturally the two overlap a great deal, from the Swahili coast of Mombasa, Lamu and Zanzibar with its shared cuisine and taarab music, to the Maasai who herd cattle on both sides of the border. Kenya is known for its lively media, Nairobi's music and tech scene and its world-beating distance runners; Tanzania for bongo flava music, a strong sense of national cohesion and the heritage of Zanzibar's Stone Town, a UNESCO World Heritage Site.
Currency
Kenya uses the Kenyan shilling (KES) and Tanzania the Tanzanian shilling (TZS). Both descend from the East African shilling, which the two countries (and Uganda) shared until 1966–67, but today they are separate currencies issued by separate central banks and are not interchangeable. The Kenyan shilling is worth considerably more per unit than the Tanzanian shilling, so check the current rate before changing money at the border. US dollars are widely accepted for safari and park fees in both countries.
History and Independence
Both emerged from colonial East Africa. The mainland of Tanzania was German East Africa until the First World War and then the British-administered territory of Tanganyika, while Kenya was a British colony with a large settler population. Tanganyika became independent on 9 December 1961 and merged with Zanzibar in April 1964 to form the United Republic of Tanzania. Kenya became independent on 12 December 1963 after the Mau Mau uprising of the 1950s.
After independence they took contrasting paths. Tanzania under Julius Nyerere pursued Ujamaa socialism and self-reliance, and it has been ruled continuously by the same party (TANU, then Chama Cha Mapinduzi). Kenya followed a more market-oriented, capitalist model and introduced multi-party politics in 1991 and a devolved system of 47 counties under its 2010 constitution. These choices help explain Kenya's more developed private sector and Tanzania's stronger national cohesion.
Kenya–Tanzania Relations, Trade and Travel
The two countries were founding members of the original East African Community in 1967, together with Uganda. That community collapsed in 1977 amid political and economic disputes, and Tanzania closed its border with Kenya until 1983. The EAC was revived in 2000 and now has its headquarters in Arusha, Tanzania. Kenya and Tanzania are each other's important trading partners within the EAC customs union and common market, trading manufactured goods, cement, maize, rice and fresh produce, although disputes over non-tariff barriers and customs rules flare up regularly.
For travellers, the most common combination is a Kenya–Tanzania safari: the Maasai Mara with the Serengeti and Ngorongoro, or a Kilimanjaro climb followed by a Zanzibar beach stay. Shuttle buses run between Nairobi and Arusha via Namanga in about five to six hours, and there are frequent flights from Nairobi to Kilimanjaro, Dar es Salaam and Zanzibar. The East Africa Tourist Visa covers Kenya, Uganda and Rwanda but not Tanzania, so visitors need separate entry permission for each country (Kenya uses an electronic travel authorisation; Tanzania issues e-visas). Both countries drive on the left.
Which Country Is Bigger?
By land area, Tanzania is bigger at 945,087 km² versus Kenya's 580,367 km². By population, Tanzania is again bigger, with about 68.6 million people to Kenya's 56.4 million. By economic size, Kenya leads, with a 2024 GDP of about $124 billion against Tanzania's $79 billion, and its lead is clearer still per person (about $2,200 against $1,150). In short, Tanzania is the bigger country in land and people, while Kenya is the larger and richer economy.
Frequently Asked Questions
Which is bigger, Kenya or Tanzania?
Tanzania is bigger on both main measures. It covers 945,087 km² compared with Kenya's 580,367 km², and it has about 68.6 million people against Kenya's 56.4 million (2024 UN estimates).
Which has the larger economy, Kenya or Tanzania?
Kenya. Its 2024 nominal GDP was about $124 billion, against about $79 billion for Tanzania, according to IMF and World Bank estimates, even though Tanzania has more people.
Which has the higher GDP per capita, Kenya or Tanzania?
Kenya. GDP per person is about $2,200 in Kenya versus about $1,150 in Tanzania (2024), so average output per Kenyan is close to twice as high.
Is Mount Kilimanjaro in Kenya or Tanzania?
Mount Kilimanjaro is in Tanzania, just south of the Kenyan border. It is clearly visible from Kenya's Amboseli National Park, which is why it often appears in photos taken in Kenya.
Do I need separate visas for Kenya and Tanzania?
Yes, in most cases. The East Africa Tourist Visa covers Kenya, Uganda and Rwanda but not Tanzania. Kenya requires an electronic travel authorisation and Tanzania issues its own e-visa, so check the current rules for your nationality before travelling.
Which should I visit, Kenya or Tanzania?
Both are top safari destinations that share the Great Migration. Kenya offers the Maasai Mara, easy access via Nairobi and generally shorter transfers; Tanzania offers the Serengeti, the Ngorongoro Crater, Mount Kilimanjaro and the beaches of Zanzibar. Many visitors combine the two by crossing at Namanga.
Last updated: September 2026. Population: UN World Population Prospects 2024. GDP: IMF/World Bank 2024 estimates. Area: national statistics offices and the CIA World Factbook.