The College's international population changes from year to year. For the 2021-2022 academic year, The College of Idaho had over 200 international students from more than 90 different countries, representing six of the seven continents on the planet.
| Afghanistan | Algeria | Angola |
| Armenia | Bahamas | Bangladesh |
| Belgium | Bolivia | Bosnia & Herzegovina |
| Brazil | Burkina Faso | Burundi |
| Cambodia | Cameroon | Canada |
| Chile | China | Colombia |
| Congo | Costa Rica | Cote d'Ivoire |
| Croatia | Cuba | Czech Republic |
| Dominican Republic | Ecuador | Egypt |
| El Salvador | Eritrea | Ethiopia |
| France | Germany | Ghana |
| Guatemala | Haiti | Honduras |
| Hong Kong | India | Indonesia |
| Iran | Iraq | Ireland |
| Jamaica | Japan | Jordan |
| Kenya | Laos | Lebanon |
| Malawi | Mexico | Mongolia |
| Montenegro | Morocco | Mozambique |
| Myanmar | Namibia | Nepal |
| Netherlands | New Zealand | Niger |
| Nigeria | Norway | Palestine (State of) |
| Philippines | Romania | Rwanda |
| Senegal | Serbia | Sierra Leone |
| Slovakia | South Africa | South Sudan |
| Spain | Sri Lanka | Sudan |
| Swaziland (Eswatini) | Sweden | Syria |
| Taiwan | Tajikistan | Tanzania |
| Thailand | Tunisia | Uganda |
| Ukraine | United Kingdom (U.K.) | Venezuela |
| Yemen | Zambia | Zimbabwe |