Kazakhstan is in Asia, with a small western strip in Europe. Under the most widely used convention, the Ural River marks the boundary between the two continents. The land west of the river, in West Kazakhstan and Atyrau regions, is European. By our measurement on Natural Earth boundaries, that strip is about 5% of the country, roughly 140,000 km² of a total of 2,724,900 km². The other 95% or so lies in Central Asia. That includes the capital, Astana, the largest city, Almaty, and nearly all of the country’s 20.8 million people (2025 estimate). Kazakhstan is therefore a transcontinental country. With Azerbaijan, it is one of only two landlocked countries with territory in two continents. But the United Nations, Kazakhstan’s neighbours and most of its institutions treat it as Asian. Its European side shows mostly in sport and in pan-European bodies such as UEFA and the OSCE.
The Ural River Rule: Oral and Atyrau on the Line
The modern Europe–Asia boundary was fixed by habit rather than by treaty. Most atlases, including the National Geographic Society’s, and The World Factbook follow the same sequence. The line runs down the Ural Mountains to their southern end, then down the Ural River to the Caspian Sea, then along the Greater Caucasus watershed to the Black Sea. On this definition, Kazakhstan’s border with Europe is the Ural River itself.
The Ural, historically called the Yaik, is 2,428 km long, which makes it the third-longest river in Europe after the Volga and the Danube. It rises in Russia’s southern Urals, flows past Magnitogorsk and Orenburg, and enters Kazakhstan above Oral. From there it turns south across the flat Caspian lowland to reach the sea at Atyrau. Two Kazakh regional capitals stand on it, and both are split by the continental line.
Oral, also known by its Russian name Uralsk, was founded by Cossacks in 1613 as Yaitsk. It stands at the meeting of the Ural and Chagan rivers, close to the Russian border. Because it lies on the western bank, Oral is usually described as geographically European. It is the capital of West Kazakhstan Region and one of the main entry points for rail traffic from Europe towards Siberia and the Caspian oil fields.
Atyrau, at the river’s mouth, is the clearer case of a city in two continents. A Russian trader, Gury Nazarov, founded it in 1645 as a wooden fort, and until 1991 it was called Guryev. Today it has about 355,000 people (2020). The city sits roughly 20 m below sea level on both banks of the Ural. Wikipedia notes that permanent monuments on the Ural bridges at Atyrau and at Orenburg in Russia carry the word “Europe” on one side and “Asia” on the other. The city and regional administrations stand beside the 1965 Ural bridge on the right bank, the European side.
How many Kazakhstanis live in Europe on this definition? Wikipedia’s list of transcontinental countries puts the figure at under one million. That covers Oral, the parts of Atyrau west of the river, and the rural districts of the two border regions. Atyrau Region alone covers 118,600 km² and had 681,241 residents. Only its western part lies beyond the river.
The Emba Alternative and the 1958 Soviet Textbook Line
The Ural River is the most common boundary, but it is not the only one, and Kazakhstan is where the choice matters most. In 1958 the Soviet Geographical Society recommended a different line for textbooks. It ran down the eastern foot of the Ural Mountains, along the Ural River only as far as the Mugodzhar Hills, and then down the Emba River to the Caspian. The Mugodzhar is a low range about 200 km long, rising to 657 m at Mount Ulken Baktybay. The Emba rises there and flows 712 km southwest across the Sub-Ural Plateau and the Caspian Depression. It reaches the sea through a string of shallow lagoons.
The Emba lies well east of the Ural, so this convention moves Europe deep into what most people think of as Central Asia. It would add most of the remaining land of West Kazakhstan and Atyrau regions and part of Aktobe Region, including the petroleum-rich Emba fields, where a British merchant in the mid-17th century described a spring that spouted oil instead of water. That would enlarge Kazakhstan’s European share considerably compared with the Ural rule. The line never caught on internationally. Wikipedia’s summary of the debate calls the Ural River the “most satisfactory” of the proposals, describing the Emba as a much smaller stream that cuts further into Kazakhstan. Soviet geographers themselves mostly preferred the Ural–Caucasus crest boundary by the late 20th century.
A third reading moved in the other direction after independence in 1991. Since the Kazakhs are an Asian people, some writers began to run Europe’s edge along the Russia–Kazakhstan state border from the Caspian to the Ural River. On that version, no part of Kazakhstan is in Europe at all. So, depending on whose line you follow, Kazakhstan has about 5% of its land in Europe, considerably more, or none.
2.72 Million km² from the Caspian Depression to Khan Tengri
Whatever line you use, the country’s size and shape place it in Asia. Kazakhstan lies between latitudes 40° and 56° N and longitudes 46° and 88° E. It is the ninth-largest country in the world and the largest without a coastline on the open ocean. It is more than twice the combined size of the other four Central Asian states. From west to east it runs from the Caspian Sea to the Altai and Tian Shan mountains on the Chinese border.
The far west, including the European strip, is part of the Caspian Depression, a lowland of about 200,000 km² lying partly below sea level. The country’s lowest point, the Karagiye Depression, a karst trench close to the Caspian shore, lies about 132 m below sea level. The centre is the Kazakh Steppe, about 804,500 km² of dry grassland and the largest dry steppe region in the world. Deserts cover about 44% of the country. The east and southeast rise into high mountains. The highest point given for Kazakhstan is Khan Tengri in the Tian Shan, at 6,995 m on the Kyrgyz and Chinese borders. Lake Balkhash, the Ili, Irtysh, Ishim and Syr Darya rivers, and the shrunken Aral Sea all lie on the Asian side.
The neighbours tell the same story. Kazakhstan’s land borders, as given in its Wikipedia geography section, are 6,846 km with Russia, 2,203 km with Uzbekistan, 1,533 km with China, 1,051 km with Kyrgyzstan and 379 km with Turkmenistan. The separate article on the Kazakhstan–Russia border gives that frontier as 7,644 km and calls it the longest continuous international border in the world. Four of the five neighbours lie entirely in Asia. The fifth, Russia, is itself transcontinental. Across the Caspian, Kazakhstan also faces Azerbaijan and Iran. A fuller tour of each frontier is in our guide to the countries that border Kazakhstan, and our article on how big Kazakhstan is compares its size with other countries.
UEFA Since 2002, OSCE Chair in 2010, Central Asia at the UN
In the United Nations geoscheme, the statistical grouping most international data uses, Kazakhstan is in Central Asia. It sits with Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan, and none of its territory is counted under Europe. Most of its alliances are Asian or Eurasian too. It was a founder of the Shanghai Five in 1996, which grew into the Shanghai Cooperation Organisation. It is a member of the Commonwealth of Independent States and the Organization of Islamic Cooperation. With Russia and Belarus, it signed the treaty creating the Eurasian Economic Union, which came into force on 1 January 2015. It has competed at the Asian Games since 1994.
Football is where the European foothold counts. The Kazakhstan Football Federation was founded in 1992 and first joined the Asian Football Confederation. Its team played in Asian qualifying for the 1998 and 2002 World Cups, and its biggest win ever, 7–0 against Pakistan in Lahore, came in 1997. Kazakhstan became a candidate member of UEFA in 2000 and a full member at the UEFA Congress in Stockholm on 25 April 2002. Wikipedia says it joined UEFA as a transcontinental country. Its first competitive match as a European side was a 2–1 home defeat by Ukraine on 8 September 2004.
Kazakhstan also belongs to the Organization for Security and Co-operation in Europe, whose 57 participating states are mostly European. On 1 December 2007 it was chosen to chair the organisation for 2010. On 1–2 December 2010 it hosted the OSCE summit in Astana, which remains the organisation’s most recent heads-of-state summit. The Council of Europe has been more cautious. When Kazakhstan sought observer status at its Parliamentary Assembly in 1999, the Assembly replied that a partly European country could apply for full membership but would get no status until its record on democracy and human rights improved. In culture, the broadcaster Khabar Agency entered the Junior Eurovision Song Contest from 2018 to 2022, coming second in 2019 and 2020.
The fairest one-line answer is that Kazakhstan is a Central Asian country with a European edge. It is Asian in landmass, population and most of its politics, but its western border regions lie in Europe, and in sport it has chosen Europe since 2002. For the other countries with a foot on each side of a continental boundary, see our list of transcontinental countries.