The College's international population changes from year to year. For the 2018-2019 academic year, The College of Idaho had 130 international students from 73 different countries, representing six of the seven continents on the planet.
| Afghanistan | Egypt | Nepal |
| Angola | Ethiopia | New Zealand |
| Armenia | France | Niger |
| Australia | Germany | Nigeria |
| Bahamas | Ghana | State of Palestine |
| Bangladesh | Guatemala | Paraguay |
| Belgium | Hong Kong | Philippines |
| Bolivia | Hungary | Poland |
| Bosnia & Herzegovina | India | Romania |
| Botswana | Islamic Republic of Iran | Rwanda |
| Brazil | Iraq | Senegal |
| Bulgaria | Israel | Somalia |
| Burkina Faso | Italy | South Africa |
| Burundi | Kazakhistan | Spain |
| Cameroon | Kenya | Sudan |
| Canada | Republic of Korea | Swaziland |
| China | Kozovo | Thailand |
| Colombia | Lao People's DR | Uganda |
| Congo | Lebanon | Ukraine |
| Costa Rica | Lesotho | United Kingdom |
| Cote d'Ivoire | Malawai | Venezuela |
| Croatia | Mauritius | Zambia |
| Cuba | Mexico | Zimbabwe |
| Czech Republic | Morocco | |
| Ecuador | Namibia |