Countries assigned for the AMUN 2023 conference
All countries listed are automatically seated on the Concurrent General Assembly Plenary, the three General Assembly Committees (First, Second and Third). 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 ITU). Each delegation may also choose to place a representative on the International Telecommunication Union. In addition, for specific students, each delegation may also apply to a position on the International Court of Justice and a Reporter position on the International Press Delegation.
The following codes designate on which committees each Member State is seated.
| Country | School | 1 = General Assembly First Committee
| Afghanistan 1 2 3 4 10 | Dominican University |
| Albania 1 2 3 4 5 10 | Northern Kentucky University |
| Algeria 1 2 3 4 9 10 | Gustavus Adolphus College |
| Angola 1 2 3 4 6 9 10 | University of Arizona |
| Argentina 1 2 3 4 8 10 | Bowling Green State University |
| Australia 1 2 3 4 8 10 | University of St. Thomas |
| Austria 1 2 3 4 10 | University of Missouri-Columbia |
| Belgium 1 2 3 4 8 10 | University of Wisconsin - La Crosse |
| Bolivia 1 2 3 4 10 | Lewis University |
| Botswana 1 2 3 4 7 8 9 10 | Augustana College |
| Brazil 1 2 3 4 5 10 | Saint Mary's College |
| Bulgaria 1 2 3 4 6 10 | Hendrix College |
| Burkina Faso 1 2 3 4 9 10 | Anderson University |
| Côte d'Ivoire 1 2 3 4 9 10 | University of Wisconsin - Stevens Point |
| Cambodia 1 2 3 4 10 | Northern Michigan University |
| Cameroon 1 2 3 4 6 9 10 | Elmhurst University |
| Canada 1 2 3 4 8 10 | Coe College |
| Chad 1 2 3 4 8 9 10 | Westminster College (MO) |
| Chile 1 2 3 4 6 10 | Creighton University |
| China 1 2 3 4 5 6 8 10 | Westminster College (PA) |
| Comoros 1 2 3 4 8 9 10 | Loyola University |
| Congo 1 2 3 4 9 10 | Saint Louis University |
| Costa Rica 1 2 3 4 8 10 | Wichita State University |
| Cuba 1 2 3 4 8 10 | Dominican University |
| Cyprus 1 2 3 4 10 | Millikin University |
| Democratic People's Republic of Korea 1 2 3 4 10 | Westminster College (PA) |
| Denmark 1 2 3 4 7 8 10 | University of Wisconsin - La Crosse |
| Ecuador 1 2 3 4 5 10 | Millikin University |
| Egypt 1 2 3 4 9 10 | Eastern Michigan University |
| Equatorial Guinea 1 2 3 4 9 10 | University of Northern Iowa |
| Ethiopia 1 2 3 4 8 9 10 | Carthage College |
| Finland 1 2 3 4 7 10 | Valparaiso University |
| France 1 2 3 4 5 6 10 | Aquinas College |
| Gabon 1 2 3 4 5 9 10 | University of Northern Iowa |
| Germany 1 2 3 4 6 10 | Anderson University |
| Ghana 1 2 3 4 5 9 10 | Hope College |
| Greece 1 2 3 4 10 | Saint Louis University |
| Guinea 1 2 3 4 6 9 10 | Loyola University |
| Holy See (Observer) 1 2 3 4 10 | University of Central Missouri |
| Hungary 1 2 3 4 10 | Westminster College (PA) |
| Iceland 1 2 3 4 10 | University of Arizona |
| India 1 2 3 4 8 10 | Alverno College |
| Indonesia 1 2 3 4 8 10 | Purdue University Fort Wayne |
| Iran, Islamic Republic of 1 2 3 4 8 10 | College of DuPage |
| Iraq 1 2 3 4 10 | Aquinas College |
| Ireland 1 2 3 4 10 | Missouri Southern State University |
| Israel 1 2 3 4 8 10 | Southeast Missouri State University |
| Italy 1 2 3 4 7 10 | University of Central Missouri |
| Jamaica 1 2 3 4 8 10 | University of Wisconsin - Madison |
| Japan 1 2 3 4 5 8 10 | University of Missouri-Columbia |
| Kazakhstan 1 2 3 4 10 | Northern Michigan University |
| Kenya 1 2 3 4 8 9 10 | Kansas State University |
| Lao People's Democratic Republic 1 2 3 4 10 | University of Dayton |
| Libya 1 2 3 4 8 9 10 | Missouri State University |
| Malaysia 1 2 3 4 8 10 | Illinois Wesleyan University |
| Malta 1 2 3 4 5 10 | Luther College |
| Marshall Islands 1 2 3 4 7 10 | Northern Illinois University |
| Mexico 1 2 3 4 6 8 10 | Saginaw Valley State University |
| Mozambique 1 2 3 4 5 9 10 | Purdue University Northwest |
| Myanmar 1 2 3 4 10 | University of Iowa |
| Namibia 1 2 3 4 7 9 10 | Saint Louis University |
| Netherlands 1 2 3 4 7 8 10 | Georgetown College |
| New Zealand 1 2 3 4 10 | University of Dayton |
| Niger 1 2 3 4 9 10 | Luther College |
| Nigeria 1 2 3 4 9 10 | Elmhurst University |
| Norway 1 2 3 4 10 | University of Dayton |
| Pakistan 1 2 3 4 6 8 10 | National Chengchi University |
| Palestine (Observer) 1 2 3 4 10 | Wichita State University |
| Paraguay 1 2 3 4 10 | Bowling Green State University |
| Peru 1 2 3 4 10 | Grand Rapids Community College |
| Philippines 1 2 3 4 8 10 | Truman State University |
| Portugal 1 2 3 4 8 10 | Saint Louis University |
| Qatar 1 2 3 4 7 8 10 | Oakland University |
| Republic of Korea 1 2 3 4 10 | East Texas Baptist University |
| Russian Federation 1 2 3 4 5 6 8 10 | College of Wooster |
| Rwanda 1 2 3 4 9 10 | Denison University |
| Samoa 1 2 3 4 10 | University of Arizona |
| Saudi Arabia 1 2 3 4 8 10 | University of Wisconsin - Madison |
| Somalia 1 2 3 4 8 9 10 | University of Mount Union |
| South Africa 1 2 3 4 9 10 | Truman State University |
| Spain 1 2 3 4 6 10 | Bethel University |
| Switzerland 1 2 3 4 5 10 | Gustavus Adolphus College |
| Syrian Arab Republic 1 2 3 4 6 10 | McKendree University |
| Türkiye 1 2 3 4 8 10 | Eastern Michigan University |
| Uganda 1 2 3 4 9 10 | University of Wisconsin - Madison |
| Ukraine 1 2 3 4 8 10 | Carthage College |
| United Arab Emirates 1 2 3 4 5 10 | Hendrix College |
| United Kingdom 1 2 3 4 5 6 8 10 | Johnson County Community College |
| United Republic of Tanzania 1 2 3 4 9 10 | Prairie State College |
| United States of America 1 2 3 4 5 6 8 10 | University of Minnesota - Twin Cities |
| Uruguay 1 2 3 4 10 | University of Arizona |
| Venezuela 1 2 3 4 10 | Wichita State University |
| Viet Nam 1 2 3 4 10 | Oakland University |
| Zambia 1 2 3 4 8 9 10 | College of DuPage |