There are 196 countries in the world today. It will be easier to list the 10 countries it does pass through.

South America:

Chile, Argentina, Paraguay, Brazil

Africa:

Namibia, Botswana, South Africa, Mozambique, Madagascar

Australian States:

Western Australia, Northern Territories, Queensland

The Tropic of Cancer crosses parts of . . .

• The Bahamas
• Morocco
• Mauritania
• Mali
• Algeria
• Libya
• Egypt
• Saudi Arabia
• United Arab Emirates
• Oman
• India
• Bangladesh
• Myanmar
• China
• Taiwan
• Mexico.

The ones in Africa are Morocco, Mauritania, Mali,

Algeria, Libya, and Egypt.

South America:

Chile, Argentina, Paraguay, Brazil

The imaginary line called the Tropic of Cancer is currently near 23.438° N latitude and passes through the territories of these countries:

• United States (Hawaii*)
• Mexico
• Bahamas
• Western Sahara
• Mauritania
• Mali
• Algeria
• Niger
• Chad (northernmost border)
• Libya
• Egypt
• Saudi Arabia
• United Arab Emirates (Abu Dhabi)
• Oman
• India
• Bangladesh
• Myanmar
• People's Republic of China
• Republic of China (Taiwan)

* In Hawaii, the line misses every island, passing between Nihoa and Necker Island.
The Tropic of Cancer passes through seven countries. Those countries are, Mexico, Egypt, Saudi Arabia, India, South China, Bahamas, and the United States.

The Tropic of Cancer is an imaginary line, a latitude line circling the Earth at 23°26′22″N. or about 23.5 degrees north of the equator.

It is the northernmost latitude on the surface of the Earth where the Sun can shine directly overhead, which occurs at midday on the summer solstice. For places north of the Tropic of Cancer, the Sun will always appear to be south of directly overhead.

*Locations in the tropics (i.e. closer to the equator, between the tropics of Cancer and Capricorn) will show almost no difference in seasonal daylight hours.

NO.

The Tropic of Cancer (or the Northern Tropic) and the Tropic of Capricorn (or the Souther Tropic), are the most northerly and southerly latitudes at which the Sun can appear directly overhead at noon. This event occurs at the June solstice in the northern hemisphere and the December solstice in the souther hemisphere.

Tropic of Cancer lies 23° 26′ 22″ north of the equator

Tropic of Capricorn lies 23° 26′ 22″ south of the equator

The Arctic Circle is the parallel of latitude that runs 66° 33′ 39″ north of the Equator. The region north of this circle is known as the Arctic. The equivalent latitude in the southern hemisphere is called the Antarctic Circle.

The Arctic Circle marks the southern extremity of the polar day (24 hour sunlit day, often referred to as the "midnight sun") and polar night (24 hour sunless night). North of the Arctic Circle, the sun is above the horizon for 24 continuous hours at least once per year, and below the horizon for 24 continuous hours at least once per year. On the Arctic Circle these events occur, in principle, exactly once per year, at the June and December solstices respectively. The converse is true for the Antarctic Circle

The capital city Agartala in the state of Tripura is directly on the Tropic of Cancer at 23.5°N, 91.5°E in extreme eastern India, bordering eastern Bangladesh.

The capital city Aizawl in the state of Mijoram is practically atop the Tropic of Cancer at 23.4°N, 92.9°E in extreme eastern India, likewise east of Bangladesh.

The capital city Ranchi in the state of Jharkhand is located approximately on the Tropic of Cancer at 23.3°N, 85.3°E in eastern India. (The line passes near the Kanke Dam in the north of Ranchi district.)

Three more capitals, Gandhinagar (Gujarat), Bhopal (Madhya Pradesh), and Kolkata (West Bengal) are all just slightly south of the Tropic of Cancer.

The Arctic Circle can be found North of the Tropic of Cancer.

Even though Earth may be "round" as previously stated, the Arctic Circle can be easily located when searching north of the Tropic of Cancer. Not south.
north