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 Nevasa system, Cor Caroli system, Nisus, Sigma Draconis V, Trilan
   • Largely Vulcan state
3. Andorian Empire
   • Joined: August 12, 2161
   • Withdrew: 2382
   • Rejoined: 2385
   • Comprising Kuy'va system, Cimera system, Syrinx system, Threllvia system, Weytahn
   • Largely Andorian state
4. United Planets of Tellar
   • Joined: August 12, 2161
   • Comprising Tellar Prime, Kera Phinda, Brantik, Hakon, Maeglin, Iota Pegasi
   • Largely Tellarite state
5. Alpha Centauri Concordium
   • Joined: August 12, 2161
   • Comprising Alpha Centauri system
   • Largely Human state
6. Confederated Martian Colonies
   • Joined: 2162 (ENT Novel: A Choice of Futures)
   • 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 Raij'hl system
   • Native species 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. Ithen
    • Joined: October 2165 (ENT Novel: Patterns of Interference)
    • Largely Ithenite state
11. Risian Hedony
    • Joined: late 22nd Century
    • Comprising Risa
    • Largely Risan state
12. Camor V
    • Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
    • Largely Camorite state
13. Deltan Union
    • Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
    • Comprising Dhei, Cinera, Seyaa, Brannik IV
    • Largely Deltan state
14. Trill
    • Joined: By early-23rd Century
    • Comprising Trill, Sappora VIII, Shal Tul
    • Largely Trill state
15. Argelius
    • Joined: 2240s/2250s (TOS Novel: Burning Dreams)
    • Largely Argelian state
16. Valzhan
    • Joined: By mid-23rd Century
    • Largely Valzhan state
17. Axanar
    • Joined: After 2251, by 2260s
    • Largely Axanar state
18. Alpha Proxima II
    • Joined: By 2260s
    • Former United Earth colony
    • Largely Human state
19. Arcturus
    • Joined: By 2260s
    • Largely Arcturian state
20. Plutocracy of Ardana
    • Joined: By 2260s
    • Withdrew: 2269
    • Rejoined: By 2370s
    • Comprising Ardana
    • Largely Ardanan state
21. Aurelia
    • Joined: By 2260s
    • Largely Aurelian state
22. Cait
    • Joined: By 2260s
    • Irregular participation
    • Comprising Cait, Kirisha IV
    • Largely Caitian state
23. Cygnet
    • Joined: By 2260s
    • Comprising Cygnet XII, Cygnet IV, Cygnet VIII
    • Largely Cygnian state
24. Denobula
    • Joined: By 2260s
    • Comprising Denobula, Teerza Prime, Fellebia, Matalas
    • Largely Denobulan state
25. Izar
    • Joined: By 2260s
    • Former United Earth colony
    • Largely Human state
26. Makus III
    • Joined: By 2260s
    • Largely Makusian state
27. Medusan
    • Joined: By 2260s
28. Ramatis III
    • Joined: By 2260s
    • Largely Ramatis state
29. Regulus
    • Joined: By 2260s
    • Comprising Regulus II, Regulus III, Regulus V
    • Native species include Regulan, Veliki; significant immigrant populations include Caitian, Human
30. Sauria
    • Joined: By 2260s
    • Largely Saurian state
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. Betelgeuse II
    • Joined: By 2270s
    • Largely Betelgeusian state
38. Kazar
    • Joined: By 2270s
    • Largely Kazarite state
39. Rhaandarel
    • Joined: By 2270s
    • Largely Rhaandarite state
40. Zaranai
    • Joined: By 2270s
    • Largely Zaranite state
41. Bole
    • Joined: By 2280s
    • Comprising Bolarus IX, Myrmidon
    • Largely Bolian state
42. Efros
    • Joined: By 2280s
    • Largely Efrosian state
43. Kashet
    • Joined: By 2280s
    • Largely Kasheeta state
44. Kyppr
    • Joined: By 2280s (VOY Novel: Acts of Contrition)
45. Pacifica
    • Joined: By 2280s (implicit by TNG Novel: Genesis Wave, Part I)
    • Largely Selkie state
46. Huan
    • Joined: 2293
    • Largely Huanni state
47. Betazed
    • Joined: By 2300s (TLE Novel: Cast No Shadow)
    • Comprising Betazed, Darona
    • Largely Betazoid state
48. Vestios
    • Joined: 2310 (TOS Novel: Burning Dreams)
    • Comprising Vestios Prime, Vestios II, Vestios V
    • Largely Vestian state
49. Beta Antares IV
    • Joined: By 2311
50. Lorillia
    • Joined: After 2311, By 2381
    • Largely Lorillian state
51. Deneva
    • Joined: By early-24th Century
    • Former United Earth colony
    • Comprised of Deneva, Ingraham B
    • Largely Human state
52. Gnala
    • Joined: By early-24th Century
    • Largely Gnalish state
53. Pythagos Clans
    • Joined: By early-24th Century
54. Tandar Prime
    • Joined: By 2320s
    • Comprising Tandar Prime, Pyrellia, Kemsar Colony
    • Largely Tandaran state
55. Zalda
    • Joined: 2330s-2340s
    • Comprised of Zalda, Ricktor Prime
56. Alonis
    • Joined: 2336
    • Largely Alonis state
57. Oriki
    • Joined: 2340s-2350s
    • Largely Oriki state
58. Candelar IV
    • Joined: 2350s
    • Largely Candelarian state
59. Cestus III
    • Joined: By mid-24th Century
    • Former Federation colony
60. Dedderei
    • Joined: By mid-24th Century
    • Largely Dedderac state
61. Elas
    • Joined: By mid-24th Century
    • Largely Elasian state
62. Gemworld
    • Joined: By mid-24th Century
    • Native species include Lipul, Elaysian, Alpusta, Frill, Yiltern, Gendlii
63. Grazer
    • Joined: By mid-24th Century
    • Largely Grazerite state
64. Hermat Directorate
    • Joined: By mid-24th Century
    • Comprised of Hermat, Amphibalus III
    • Largely Hermat state
65. Ochat
    • Joined: By mid-24th Century
    • Largely Ochati state
66. Pandril
    • Joined: By mid-24th Century
    • Largely Pandrilite state
67. Peliar Zel
    • Joined: By mid-24th Century
    • Largely Peliar state
68. Selene
    • Joined: By mid-24th Century
    • Largely Selenean state
69. Sigma Iotia II
    • Joined: By mid-24th Century
    • Largely Iotian state
70. Tessen III
    • Joined: By mid-24th Century
    • Largely Tessenite state
71. Troyius
    • Joined: By mid-24th Century
    • Largely Troyian state
72. Xindi Diaspora
    • Joined: By mid-24th Century
    • Comprised of New Xindus, Azati Prime, Calindra
    • Largely Xindi state
73. Pahkwa
    • Joined: 2360
    • Largely Pahkwa-thanh state
74. Bynaus
    • Joined: After 2364, By 2375
    • Largely Bynar state
75. Benzar
    • Joined: After 2365, by 2374
    • Largely Benzite state
76. Damiano
    • Joined: 2371
    • Largely Damiani state
77. Lendrin
    • Joined: After 2371, by 2378
    • Largely Lendrin state
78. Andros III
    • Joined: By late-24th Century
    • Largely Androsian state
79. Antede III
    • Joined: By late-24th Century
    • Largely Antedean state
80. Arbaza
    • Joined: By late-24th Century
    • Largely Arbazan state
81. Asario
    • Joined: By late-24th Century
    • Largely Asarion state
82. Atrea IV
    • Joined: By late-24th Century
    • Largely Atrean state
83. Bilana III
    • Joined: By late-24th Century
    • Largely Bilanan state
84. Bre’el IV
    • Joined: By late-24th Century
    • Largely Bre'ella state
85. Cairn
    • Joined: By late-24th Century
    • Largely Cairn state
86. Caldos II
    • Joined: By late-24th Century
    • Former Federation colony
87. Carnegie
    • Joined: By late-24th Century
    • Former Federation colony
88. Commonwealth of Denebia
    • Joined: By late-24th Century
    • Largely Denebian state
89. Delb II
    • Joined: By late-24th Century
    • Largely Delbian state
90. Delta Sigma IV
    • Joined: By late-24th Century
    • Largely Bader and Dorset state
91. Gallamite
    • Joined: By late-24th Century
92. Grilasdixraksirvek
    • Joined: By late-24th Century
    • Largely Antarean state
93. Hekaras II
    • Joined: By late-24th Century
    • Largely Hekaran state
94. Icor IX
    • Joined: By late-24th Century
    • Largely Icorian state
95. Inferna Prime
    • Joined: By late-24th Century
96. Ktar
    • Joined: By late-24th Century
    • Largely Ktarian state
97. Magna Roma
    • Joined: By mid-24th Century
    • Preserver transplant world
    • Largely Magna Roman state
98. Meldrar I
    • Joined: By late-24th Century
    • Largely Meldrarae state
99. Napea
    • Joined: By late-24th Century
    • Largely Napean state
100. Nasat
     • Joined: By late-24th Century
     • Largely Nasat and Citoac state
101. Parnasi
     • Joined: By late-24th Century
102. Pentam V
     • Joined: By late-24th Century
     • Largely Pentamian state
103. Triex
     • Joined: By late-24th Century
     • Largely Triexian state
104. Tyrellia
     • Joined: By late-24th Century
     • Largely Tyrellian state
105. Ysa
     • Joined: By late-24th Century
106. Zakdorn
     • Joined: By late-24th Century
     • Comprised of Zakdorn, Qualor II
     • Largely Zakdorn state
107. Zanri
     • Joined: By late-24th Century
108. Evora
     • 152nd member
       • Over 150 members by October 2373 (First Contact)
       • Three given as members between then and 155th
     • Joined: 2375
     • Largely Evoran state
109. Ontail
     • 153rd member
     • Joined: 2375
     • Largely Ontailian state
110. Third Republic of Bajor
     • 154th member
     • Joined: September 29, 2376
     • Comprised of Bajor, Andros, Dreon VIII, Free Haven, Golana, Prophet’s Landing, Valo, Velestral
     • Largely Bajoran state
111. Koa
     • 155th member (Novel: Articles of the Federation)
     • Joined: 2380
     • Largely Koas state