Countries assigned for the AMUN 2021 conference
All countries listed are automatically seated on the three General Assembly Committees (First, Second and Fourth). Each delegation is expected to assign a minimum of one representative to each Committee, Council and Commission on which it is seated. Each delegation also has the option to place a second representative on any Committee, Council and Commission on which it is seated (excluding UNEA). Each delegation may also choose to place a representative on the United Nations Environment Assembly. In addition, for specific students, each delegation may also apply to a position on the International Court of Justice.
The following codes designate on which committees each Member State is seated.
| Country | School | 1 = General Assembly First Committee
| Argentina 1 2 3 4 7 9 11 | University of Northern Iowa |
| Armenia 1 2 3 6 8 9 11 | Carthage College |
| Australia 1 2 3 4 6 8 9 10 | Loyola University |
| Austria 1 2 3 4 9 10 11 | Hendrix College |
| Bahrain 1 2 3 6 9 11 | University of Wisconsin - La Crosse |
| Bangladesh 1 2 3 6 8 9 11 | Loyola University |
| Belgium 1 2 3 9 | University of Mount Union |
| Bolivia 1 2 3 9 11 | University of Arizona |
| Brazil 1 2 3 4 6 9 11 | St. Olaf College |
| Cambodia 1 2 3 7 8 9 | Northern Illinois University |
| Canada 1 2 3 4 6 7 9 | University of Wisconsin - Madison |
| Chile 1 2 3 6 9 | Alverno College |
| China 1 2 3 4 5 6 8 9 10 11 | Bethel University |
| Colombia 1 2 3 6 9 | Eastern Michigan University |
| Cuba 1 2 3 6 9 11 | Truman State University |
| Democratic People's Republic of Korea 1 2 3 8 9 | Truman State University |
| Denmark 1 2 3 6 9 11 | Missouri Southern State University |
| Ecuador 1 2 3 6 9 | Lewis University |
| Egypt 1 2 3 4 7 9 | University of Missouri-Columbia |
| El Salvador 1 2 3 9 | Phoenix College |
| Estonia 1 2 3 4 5 6 9 | Dominican University |
| Fiji 1 2 3 8 9 11 | Saint Louis University |
| France 1 2 3 4 5 8 9 10 11 | University of St. Thomas |
| Germany 1 2 3 4 6 9 11 | Southeast Missouri State University |
| Guatemala 1 2 3 9 | Augsburg College |
| Guinea 1 2 3 9 10 | Georgetown College |
| India 1 2 3 4 5 8 9 10 11 | University of South Dakota |
| Indonesia 1 2 3 8 9 10 11 | Saint Mary's College |
| Iran, Islamic Republic of 1 2 3 8 9 | St. Ambrose University |
| Iraq 1 2 3 6 9 | University of Wisconsin - La Crosse |
| Ireland 1 2 3 5 6 9 | University of Central Oklahoma |
| Israel 1 2 3 6 7 9 | Aquinas College |
| Italy 1 2 3 9 11 | Aquinas College |
| Japan 1 2 3 4 6 8 9 11 | Wichita State University |
| Kenya 1 2 3 5 6 9 10 | Millikin University |
| Lebanon 1 2 3 9 | Saginaw Valley State University |
| Malaysia 1 2 3 4 6 8 9 | Creighton University |
| Mexico 1 2 3 4 5 6 9 11 | College of Wooster |
| Mongolia 1 2 3 4 6 8 9 | Hendrix College |
| Namibia 1 2 3 6 9 11 | Augsburg College |
| Netherlands 1 2 3 8 9 11 | Southern Illinois University |
| New Zealand 1 2 3 4 8 9 | Hendrix College |
| Niger 1 2 3 5 6 9 | University of Minnesota - Twin Cities |
| Norway 1 2 3 4 5 9 | Jefferson Community College |
| Pakistan 1 2 3 8 9 11 | University of Wisconsin - Madison |
| Palestine (Observer) 1 2 3 7 9 | Central Michigan University |
| Panama 1 2 3 4 9 10 | Westminster College (PA) |
| Peru 1 2 3 4 6 9 10 | Elmhurst University |
| Philippines 1 2 3 6 8 9 11 | Carthage College |
| Poland 1 2 3 4 9 11 | National Chengchi University |
| Republic of Korea 1 2 3 6 8 9 11 | National Chengchi University |
| Russian Federation 1 2 3 4 5 6 8 9 10 11 | Purdue University Northwest |
| Saint Vincent & the Grenadines 1 2 3 5 9 | Westminster College |
| Saudi Arabia 1 2 3 4 6 9 | University of Minnesota - Twin Cities |
| Senegal 1 2 3 4 6 9 11 | Coe College |
| Serbia 1 2 3 9 10 | Northern Kentucky University |
| South Africa 1 2 3 4 6 9 | University of Central Oklahoma |
| Sudan 1 2 3 9 10 11 | University of Arizona |
| Sweden 1 2 3 4 9 | Augsburg College |
| Switzerland 1 2 3 4 6 9 | University of Arizona |
| Thailand 1 2 3 7 8 9 | Missouri Southern State University |
| Togo 1 2 3 6 9 11 | Saint Louis University |
| Tunisia 1 2 3 5 6 9 | Eastern Michigan University |
| Turkey 1 2 3 8 9 | McKendree University |
| Ukraine 1 2 3 9 11 | University of Mount Union |
| United Arab Emirates 1 2 3 4 9 | University of Arizona |
| United Kingdom 1 2 3 4 5 8 9 10 11 | Saginaw Valley State University |
| United States of America 1 2 3 4 5 6 8 9 10 | St. Ambrose University |
| Uruguay 1 2 3 7 9 11 | Westminster College (PA) |
| Viet Nam 1 2 3 5 8 9 | University of Arizona |