The X-Files by year

Includes sister show Millennium and spin-off The Lone Gunmen.

• 1993 - Episode 1-12 (season 1)
• 1994 - Episode 13-24 (season 1) and 25-35 (season 2)
• 1995 - Episode 36-49 (season 2) and 50-60 (season 3)
• 1996 - Episode 61-73 (season 3) and 74-83 (season 4) / Millennium episode 1-8 (season 1)
• 1997 - Episode 84-97 (season 4) and 98-104 (season 5) / Millennium episode 9-22 (season 1) and 23-32 (season 2)
• 1998 - Episode 99-117 (season 5), Fight the Future and 118-123 (season 6) / Millennium episode 33-45 (season 2) and 46-54 (season 3)
• 1999 - Episode 118-139 (season 6) and 140-145 (season 7) / Millennium episode 55-67 (season 3)
• 2000 - Episode 146-161 (season 7) and 162-168 (season 8)
• 2001 - Episode 169-182 (season 8) and 183-187 (season 9) / The Lone Gunmen episode 1-13 (season 1)
• 2002 - Episode 188-202 (season 9)
• 2008 - I Want to Believe
• 2016 - Episode 203-208 (season 10)
• 2018 - Episode 209-218 (season 11)
• Total - 298 episodes and two films