(ORIGINALLY KNOWN AS JUNIORS AND THEN AS UNDER-18s. FIBA AMERICAS UNDER-18 WINNERS COMPETE IN THE WORLD UNDER-19 CHAMPIONSHIPS IN THE FOLLOWING YEAR)
| YEAR | GOLD | SILVER | BRONZE | CANADIAN FINISH |
| 1979 | United States | Brazil | Argentina | 7th |
| 1983 | United States | Soviet Union | Brazil | 14th |
| 1987 | Yugoslavia | United States | Italy | 6th |
| 1991 | United States | Italy | Argentina | 8th |
| 1995 | Greece | Australia | Spain | DNQ |
| 1999 | Spain | United States | Croatia | DNQ |
| 2003 | Australia | Lithuania | Greece | DNQ |
| 2007 | Serbia | United States | France | 10th |
| 2009 | United States | Greece | Croatia | 7th |
| 2011 | Lithuania | Serbia | Russia | 11th |
| 2013 | United States | Serbia | Lithuania | 6th |
| 2015 | United States | Croatia | Turkey | 5th |
| 2017 | CANADA | Italy | United States | GOLD |
| 2019 | United States | Mali | France | 8th |
| 2021 | United States | France | CANADA | BRONZE |
| 2023 | Spain | France | Turkey | 7th |
AMERICAS QUALIFIERS
| YEAR | GOLD | SILVER | BRONZE | CANADIAN FINISH |
| 1990 | United States | Argentina | Brazil | 9th |
| 1994 | United States | Argentina | Puerto Rico | 7th |
| 1998 | United States | Argentina | Brazil | 7th |
| 2002 | Puerto Rico | Venezuela | United States | 7th |
| 2006 | United States | Argentina | Brazil | 4th |
| 2008 | Argentina | United States | CANADA | BRONZE |
| 2010 | United States | Brazil | CANADA | BRONZE |
| 2012 | United States | Brazil | CANADA | BRONZE |
| 2014 | United States | CANADA | Dominican Republic | SILVER |
| 2016 | United States | CANADA | Brazil | SILVER |
| 2018 | United States | CANADA | Argentina | SILVER |
| 2022 | United States | Brazil | CANADA | BRONZE |
| 2024 | United States | Argentina | CANADA | BRONZE |