Federation Members

Listed in order of joining:

1. United Earth
   • Joined: August 12, 2161
   • Comprising Earth, Luna, Titan, various extrasolar colonies
   • Largely Human state
2. Confederacy of Vulcan
   • Joined: August 12, 2161
   • Comprising Vulcan, T’Khut, Cor Caroli IX, Nisus, Sigma Draconis V, Trilan
   • Largely Vulcan state
3. Andorian Empire
   • Joined: August 12, 2161
   • Withdrew: 2382
   • Rejoined: 2385
   • Comprising Andor, Alrond, Cimera III, Syrinx III, Threllvia IV, Weytahn
   • Largely Andorian state
4. United Planets of Tellar
   • Joined: August 12, 2161
   • Comprising Tellar Prime, Kera Phinda, Brantik, Hakon, Maeglin
   • Largely Tellarite state
5. Alpha Centauri Concordium
   • Joined: August 12, 2161
   • Comprising Alpha Centauri III, Alpha Centauri IV, Alpha Centauri VII
   • Largely Human state
6. Confederated Martian Colonies
   • Joined: 2162 (ENT Novel: Rise of the Federation)
   • Comprising Mars
   • Largely Human and Tellarite state
7. Vega Colony
   • Joined: 2164 (ENT Novel: Tower of Babel)
   • Former United Earth colony
   • Comprising Vega IX
   • Largely Human state
8. United Worlds and Colonies of Rigel
   • Joined: 2164 (ENT Novel: Tower of Babel)
   • Comprising Rigel II, Rigel III, Rigel V, Rigel VI, Rigel VIII, Rigel IX, Rigel X, Rigel XII
   • Native races include Chelon, Jelna, Zami; significant immigrant populations include Coridanite, Human, Ithenite, Orion, Xarantine
9. Arken II
   • Joined: 2165 (ENT Novel: Uncertain Logic)
   • Former Andorian Empire subject world
   • Largely Arkenite state
10. Risian Hedony
    • Joined: late 22nd Century
    • Comprising Risa
    • Largely Risan state
11. Camor V
    • Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
    • Largely Camorite state
12. Deltan Union
    • Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
    • Comprising Dhei, Cinera, Seyaa, Brannik IV
    • Largely Deltan state
13. Trill
    • Joined: By early-23rd Century
    • Comprising Trill, Sappora VIII, Shal Tul
    • Largely Trill state
14. Argelius
    • Joined: 2240s/2250s (TOS Novel: Burning Dreams)
    • Largely Argelian state
15. Valzhan
    • Joined: By mid-23rd Century
    • Largely Valzhan state
16. Alpha Proxima II
    • Joined: By 2260s
    • Former United Earth colony
    • Largely Human state
17. Arcturus
    • Joined: By 2260s
    • Largely Arcturian state
18. Plutocracy of Ardana
    • Joined: By 2260s
    • Withdrew: 2269
    • Rejoined: By 2370s
    • Comprising Ardana
    • Largely Ardanan state
19. Aurelia
    • Joined: By 2260s
    • Largely Aurelian state
20. Axanar
    • Joined: By 2260s
    • Largely Axanar state
21. Cait
    • Joined: By 2260s
    • Irregular participation
    • Comprising Cait, Kirisha IV
    • Largely Caitian state
22. Cygnet
    • Joined: By 2260s
    • Comprising Cygnet XII, Cygnet IV, Cygnet VIII
    • Largely Cygnian state
23. Denobula
    • Joined: By 2260s
    • Comprising Denobula, Teerza Prime, Fellebia, Matalas
    • Largely Denobulan state
24. Ithen
    • Joined: By 2260s
    • Largely Ithenite state
25. Izar
    • Joined: By 2260s
    • Former United Earth colony
    • Largely Human state
26. Lyaksti'kton
    • Joined: By 2260s
    • Largely Saurian state
27. Makus III
    • Joined: By 2260s
    • Largely Makusian state
28. Medusan
    • Joined: By 2260s
29. Ramatis III
    • Joined: By 2260s
    • Largely Ramatis state
30. Regulus
    • Joined: By 2260s
    • Comprising Regulus II, Regulus III, Regulus V
    • Native races include Regulan, Veliki; significant immigrant populations include Caitian, Human
31. Scoridia
    • Joined: By 2260s
    • Largely Scoridian state
32. Sulamid
    • Joined: By 2260s
    • Largely Sulamid state
33. Tiburon
    • Joined: By 2260s
    • Largely Tiburonian state
34. People's Republic of Coridan
    • Joined: 2267
    • Comprising Coridan
    • Largely Coridanite state
35. Janus VI
    • Joined: After 2267
    • Largely Horta state
36. Aaamazzara
    • Joined: By 2270s
    • Largely Therbian state
37. Kazar
    • Joined: By 2270s
    • Largely Kazarite state
38. Rhaandarel
    • Joined: By 2270s
    • Largely Rhaandarite state
39. Zaranai
    • Joined: By 2270s
    • Largely Zaranite state
40. Bole
    • Joined: By 2280s
    • Comprising Bolarus IX, Myrmidon
    • Largely Bolian state
41. Efros
    • Joined: By 2280s
    • Largely Efrosian state
42. Kashet
    • Joined: By 2280s
    • Largely Kasheeta state
43. Kyppr
    • Joined: By 2280s (VOY Novel: Acts of Contrition)
44. Pacifica
    • Joined: By 2280s (implicit by TNG Novel: Genesis Wave, Part I)
    • Largely Selkie state
45. Huan
    • Joined: 2293
    • Largely Huanni state
46. Betazed
    • Joined: By 2300s (TLE Novel: Cast No Shadow)
    • Comprising Betazed, Darona
    • Largely Betazoid state
47. Vestios
    • Joined: 2310 (TOS Novel: Burning Dreams)
    • Comprising Vestios Prime, Vestios II, Vestios V
    • Largely Vestian state
48. Beta Antares IV
    • Joined: By 2311
49. Lorillia
    • Joined: After 2311, By 2381
    • Largely Lorillian state
50. Deneva
    • Joined: By early-24th Century
    • Former United Earth colony
    • Comprised of Deneva, Ingraham B
    • Largely Human state
51. Gnala
    • Joined: By early-24th Century
    • Largely Gnalish state
52. Pythagos Clans
    • Joined: By early-24th Century
53. Tandar Prime
    • Joined: By 2320s
    • Comprising Tandar Prime, Pyrellia, Kemsar Colony
    • Largely Tandaran state
54. Zalda
    • Joined: 2330s-2340s
    • Comprised of Zalda, Ricktor Prime
55. Alonis
    • Joined: 2336
    • Largely Alonis state
56. Oriki
    • Joined: 2340s-2350s
    • Largely Oriki state
57. Candelar IV
    • Joined: 2350s
    • Largely Candelarian state
58. Cestus III
    • Joined: By mid-24th Century
    • Former Federation colony
59. Dedderei
    • Joined: By mid-24th Century
    • Largely Dedderac state
60. Elas
    • Joined: By mid-24th Century
    • Largely Elasian state
61. Gemworld
    • Joined: By mid-24th Century
    • Native races include Lipul, Elaysian, Alpusta, Frill, Yiltern, Gendlii
62. Grazer
    • Joined: By mid-24th Century
    • Largely Grazerite state
63. Hermat Directorate
    • Joined: By mid-24th Century
    • Comprised of Hermat, Amphibalus III
    • Largely Hermat state
64. Ochat
    • Joined: By mid-24th Century
    • Largely Ochati state
65. Pandril
    • Joined: By mid-24th Century
    • Largely Pandrilite state
66. Peliar Zel
    • Joined: By mid-24th Century
    • Largely Peliar state
67. Selene
    • Joined: By mid-24th Century
    • Largely Selenean state
68. Sigma Iotia II
    • Joined: By mid-24th Century
    • Largely Iotian state
69. Tessen III
    • Joined: By mid-24th Century
    • Largely Tessenite state
70. Troyius
    • Joined: By mid-24th Century
    • Largely Troyian state
71. Xindi Diaspora
    • Joined: By mid-24th Century
    • Comprised of New Xindus, Azati Prime, Calindra
    • Largely Xindi state
72. Pahkwa
    • Joined: 2360
    • Largely Pahkwa-thanh state
73. Bynaus
    • Joined: After 2364, By 2375
    • Largely Bynar state
74. Benzar
    • Joined: After 2365, by 2374
    • Largely Benzite state
75. Damiano
    • Joined: 2371
    • Largely Damiani state
76. Lendrin
    • Joined: After 2371, by 2378
    • Largely Lendrin state
77. Evora
    • Joined: 2375
    • Largely Evoran state
78. Ona
    • Joined: 2375
    • Largely Ontailian state
79. Third Republic of Bajor
    • Joined: 2376
    • Comprised of Bajor, Andros, Dreon VIII, Free Haven, Golana, Prophet’s Landing, Valo, Velestral
    • Largely Bajoran state
80. Koa
    • Joined: 2380
    • Largely Koas state
81. Andros III
    • Joined: By late-24th Century
82. Antede III
    • Joined: By late-24th Century
    • Largely Antedean state
83. Arbaza
    • Joined: By late-24th Century
    • Largely Arbazan state
84. Asario
    • Joined: By late-24th Century
    • Largely Asarion state
85. Atrea IV
    • Joined: By late-24th Century
    • Largely Atrean state
86. Bilana III
    • Joined: By late-24th Century
    • Largely Bilanan state
87. Bre’el IV
    • Joined: By late-24th Century
    • Largely Bre'ella state
88. Cairn
    • Joined: By late-24th Century
    • Largely Cairn state
89. Caldos II
    • Joined: By late-24th Century
    • Former Federation colony
90. Carnegie
    • Joined: By late-24th Century
    • Former Federation colony
91. Delb II
    • Joined: By late-24th Century
    • Largely Delbian state
92. Delta Sigma IV
    • Joined: By late-24th Century
    • Largely Bader and Dorset state
93. Gallamite
    • Joined: By late-24th Century
94. Grilasdixraksirvek
    • Joined: By late-24th Century
    • Largely Antarean state
95. Hekaras II
    • Joined: By late-24th Century
    • Largely Hekaran state
96. Icor IX
    • Joined: By late-24th Century
    • Largely Icorian state
97. Inferna Prime
    • Joined: By late-24th Century
98. Ktar
    • Joined: By late-24th Century
    • Largely Ktarian state
99. Magna Roma
    • Joined: By mid-24th Century
    • Preserver transplant world
    • Largely Magna Roman state
100. Meldrar I
     • Joined: By late-24th Century
     • Largely Meldrarae state
101. Napea
     • Joined: By late-24th Century
     • Largely Napean state
102. Nasat
     • Joined: By late-24th Century
     • Largely Nasat and Citoac state
103. Parnasi
     • Joined: By late-24th Century
104. Pentam V
     • Joined: By late-24th Century
     • Largely Pentamian state
105. Triex
     • Joined: By late-24th Century
     • Largely Triexian state
106. Tyrellia
     • Joined: By late-24th Century
     • Largely Tyrellian state
107. Ysa
     • Joined: By late-24th Century
108. Zakdorn
     • Joined: By late-24th Century
     • Comprised of Zakdorn, Qualor II
     • Largely Zakdorn state
109. Zanri
     • Joined: By late-24th Century
     • Largely Androsian state