As of the 2025 selections, in the 40 years since the tournament went to 64 teams in 1985:

• 312 teams have made the NCAA Men's Basketball Tournament (Bryant, Cal-San Diego, High Point, Omaha, SIU-Edwardsville new in 2025!)
• 88 teams have garnered a top four seed (none new in 2025)
  
• 45 teams have garnered a #1 seed (none new in 2025)
• Kansas has the most #1 seeds since 1985 with 16 total, one more than North Carolina)
  
• The longest appearance streak is still Kansas, 36 straight years; they last missed the tournament in 1989

As of the end of the 2024 tournament:

• 195 teams have won at least one game over the past 39 years (Duquesne, Grand Canyon, James Madison, and Oakland new in 2024!)
  
• 121 teams have made the Sweet Sixteen at least once (none new in 2024)
  
• 57 teams have made at least one Final Four (Alabama, NC State, and Purdue new in 2024!)
  
• 19 teams have won at least one championship
  
• UConn has won the most championships since 1985, a total of 6
  

You can check out each and every one of them - track the records of every single team that has made the 64-team field since 1985.  Plus, teams are ranked by various criteria such as total wins, sweet sixteens, final fours, high seeds, etc.  Check it out at the Tournament Team Stats Page.

The pages were created from my personal records (so there could be errors) from an Excel spreadsheet format.  Also, I'm a purist - there are 64 teams in the tournament, not 68.  Thus, only the winners of the Tuesday/Wednesday play-in games are considered to have made the tourney. 

There are several tabbed pages with stats in various formats.  Below is an explanation of the various pages, each for 1985-2023 (selections):

• Seeds: alphabetical listing of the seed during each year of the tournament (1-16)
  
• RankApp: teams ranked according to most appearances
  
• RankAvgSeed: teams ranked according to average seeding of all appearances
  
• RankTop4Seed: teams ranked according to most top 4 seeds
• Rank#1Seed: teams ranked according to most #1 seeds
  
• Wins: alphabetical listing of the number of wins during each year of tournament (0-6)
  
• RankWins: teams ranked according to most total tournament wins
  
• RankWinsPerAppear: teams ranked according to average wins per tournament appearance
  
• RankS16: teams ranked according to most total times in Sweet Sixteen
  
• RankF4: teams ranked according to most total times in Final Four
  
• RankChampionships: teams ranked according to most championships