|U18 and U19|
|1992 U18 Guanajuato||Team Competition|
|1996 Taipei||Team Competition|
Johnson attended the University of Alabama and was a two-time All-American with the Crimson Tide. She was also a Naismith Award finalist. As of March 2006, Johnson had scored the second most points in Alabama women's basketball history. She helped the 6th seeded Alabama squad reach the 1994 Final Four. In 2006, Johnson was named to the 25th anniversary team of the Southeastern Conference.
Johnson was named to the USA U18 team (then called the Junior World Championship Qualifying Team) in 1992. The team competed in Guanajuato, Mexico in August 1992. The team won their first four games, then lost 80–70 to Brazil, finishing with the silver medal for the event, but qualifying for the 1993 world games. Johnson averaged 9.6 points per game during the event.
Johnson continued with the team to the 1993 U19 World Championship (then called the Junior World Championship). The team won five games and lost two, but that left them in seventh place. Johnson averaged 8.6 points per game and recorded 12 assists, highest on the team.
Johnson was invited to play with the team representing the USA at the 1996 William Jones Cup competition held in Taipei, Taiwan. The team won all nine games to win the gold medal. Johnson averaged 4.2 points per game.
- "Former Tide Great Niesa Johnson on ESPN All-Time SEC List - ALABAMA CRIMSON TIDE - University of Alabama Official Athletic Site". RollTide.com. March 7, 2006. Retrieved 26 December 2011.
- "Second Women's Junior World Championship Qualifying Team -- 1992". USA Basketball. June 10, 2010. Archived from the original on 7 September 2015. Retrieved 20 October 2015.
- "Third FIBA Women's U19/Junior World Championship -- 1993". USA Basketball. June 10, 2010. Archived from the original on 28 September 2015. Retrieved 20 October 2015.
- "1996 Women's R. William Jones Cup". USA Basketball. June 10, 2010. Archived from the original on 7 September 2015. Retrieved 17 October 2015.
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