The College's international population changes from year to year. For the 2019-2020 academic year, The College of Idaho had 196 international students from 88 different countries, representing six of the seven continents on the planet.
| Afghanistan | Georgia | Nigeria |
| Algeria | Germany | State of Palestine |
| Angola | Ghana | Paraguay |
| Armenia | Guatemala | Philippines |
| Australia | Hong Kong | Poland |
| Bahamas | Hungary | Romania |
| Bangladesh | India | Rwanda |
| Bosnia & Herzegovina | Islamic Republic of Iran | Senegal |
| Botswana | Iraq | Sierra Leone |
| Brazil | Israel | Somalia |
| Bulgaria | Italy | South Africa |
| Burkina Faso | Jamaica | South Sudan |
| Burundi | Jordan | Spain |
| Cambodia | Kazakhstan | Sudan |
| Cameroon | Kenya | Swaziland |
| Canada | Kosovo | Taiwan |
| Chile | Lao People's DR | Tajikistan |
| Colombia | Lebanon | Thailand |
| Congo | Lesotho | Tunisia |
| Costa Rica | Liberia | Uganda |
| Cote d'Ivoire | Malawi | Ukraine |
| Croatia | Mauritius | United Republic of Tanzania |
| Cuba | Mexico | United States of America |
| Czech Republic | Montenegro | Venezuela |
| Dominican Republic | Morocco | Viet Nam |
| Ecuador | Myanmar | Yemen |
| Egypt | Namibia | Zambia |
| El Salvador | Nepal | Zimbabwe |
| Ethiopia | New Zeland | |
| France | Niger |