This article or subsection has an associated category. | Federation member states |
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As of December 2380, there were 154 member states of the United Federation of Planets, and Federation space spanned over 10,000 light years. (ST novel: Articles of the Federation)
- See also Federation colonies.
Founding member states
The United Federation of Planets was founded in 2161 by the governments of United Earth, the Confederacy of Vulcan, the Andorian Empire, the United Planets of Tellar, and the Alpha Centauri Concordium, all of which were previously members of the Coalition of Planets. (TNG episode: "The Outcast"; ENT episode: "Zero Hour"; ST novel: Articles of the Federation; ENT novel: Kobayashi Maru; ST reference: Star Fleet Technical Manual)
- The novel Starfleet: Year One, published before Enterprise canonically confirmed the founding members of the Federation, gave eight founding worlds; Earth, Vulcan, Andor and Tellar remained, Alpha Centauri was omitted and Osadj, Dedderai, Vobilin and, last to agree to join, Rigel IV, were added. While these extra worlds could still be early members of the Federation, the majority of sources, and canon, now rule them out as founding members.
- Similarly, the reference book Spaceflight Chronology lists Rigel as a founding member in addition to the five listed above. In addition, in that source Alpha Centauri is a system with an indigenous (though closely related to Human) population, not an Earth colony.
Members
A
B
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Bajor | Republic of Bajor | Bajoran | 2376/2384 | 2376 admission into the Federation depicted in Unity. 2384 application acceptance depicted in The Path to 2409, with full admittance in 2393. |
Benzar | Benzite | 2369 | Confirmed member in Articles of the Federation and Coming of Age | |
Berengaria VII | Human colony | Confirmed member in ST reference: Worlds of the Federation | ||
Beta Ophiuchi | Confirmed member in Star Trek Maps | |||
Betazed | Fifth House of Betazed | Betazoid | 2273 | Confirmed member in Triangle: Imzadi II, details per Star Charts |
Betelgeuse II | Betelgeusian | 2230 | Confirmed member in The Motion Picture | |
Bilana III | Bilannan | Confirmed member in ST references: Encyclopedia, Star Charts. | ||
Binderia | Binderian | STA novel: Gauntlet | ||
Bolarus | Bolian | 23rd century | Confirmed in Decipher module: Worlds | |
Bre'el IV | Bre'ella | Confirmed member in Articles of the Federation | ||
Buran | Burani | 2369 | Confirmed in TNG novel: The Death of Princes | |
Bynaus | Bynar | Confirmed member in 10 is Better Than 01 |
C
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Cairn | Cairn | Confirmed member in ST novel: Articles of the Federation and ST reference: Star Charts. | ||
Cait | Caitian | 2181[citation needed] | Confirmed in ST novel: Articles of the Federation, ST reference: Star Charts and Star Trek IV Sourcebook Update | |
Candelar IV | Candelaran | - | Confirmed member in TLE novel: Deny Thy Father | |
Catulla | Catullan | 2185 | Confirmed member in ST reference: Star Charts. | |
Cestus III | Cestus III Colony | Human | 2271 | Confirmed in ST reference: Star Charts. |
Chal | Klingon/Romulan Hybrid or Chalchaj'qmey | Confirmed member in TOS novel: Avenger | ||
- | Clan Ru | Confirmed member in TOS novel: First Frontier | ||
Coridan III | People's Republic of Coridan | Coridanite | 2267 | Confirmed in TOS episode: "Journey to Babel", ST reference: Star Charts |
Cygnet XIV | Cygnian | 2251 | Confirmed member in ST reference: Star Charts. |
D
E
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Earth | United Earth | Human | 2161 | Founding member in ENT - The Romulan War novel: To Brave the Storm. |
Eeiauo | Eeiauoan | Confirmed member in TOS novel: Uhura's Song. | ||
Edos | Edosian | Confirmed member in Star Trek Maps | ||
Efros/Efros Delta/Atreos IV | Efrosian | Confirmed member in Star Trek IV Sourcebook Update | ||
Ekos | Ekosian global federation | Ekosian | 2373 | Confirmed in Decipher RPG module: Worlds |
Elas | Elasian | Late 24th Century | Confirmed member in TNG novel: Lost Souls. | |
Evora | Evoran | 2375 | Confirmed in COE novel: Past Life |
F
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Fillandia | Ariolo | Confirmed member in Star Trek IV Sourcebook Update |
G
planet/system | state | species | admitted | notes |
---|---|---|---|---|
- | Galakhi | Confirmed member in TOS novel: The Lost Years. | ||
Gemworld | Elaysian, Lipul | Confirmed member in TNG novel: Gemworld. | ||
Gideon (Delta Dorado) | Gideon Council | Gideonite | prior to 2378 | Confirmed member in ST reference: Star Charts. |
Gnala | Gnalish | Confirmed member in ST novel: Articles of the Federation. | ||
Grazer | Grazerite | 2305 | Confirmed member in ST novel: Articles of the Federation. | |
- | Guidon Space Pontificate | Guidon | prior to 2363 | Confirmed member in TNG - The Sky's the Limit short story: "Meet with Triumph and Disaster". |
Gullrey | Rey | Confirmed member in TOS novel: The Great Starship Race. |
H
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Halii | Haliian | Confirmed member in TNG episode: "Aquiel". | ||
Hamal IV | Hamalki | Confirmed member in TOS novel: The Wounded Sky. | ||
Hekaras II | Hekaran | Confirmed member in TNG episode: "Force of Nature". | ||
- | Hermat | Confirmed member in ST novel: Articles of the Federation. | ||
Huan | Huanni | Confirmed member in VOY - Spirit Walk novel: Old Wounds. |
I
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Igre | Igresh | before 2364 | Confirmed member in FASA RPG module: Star Trek: The Next Generation Officer's Manual. | |
Izar | Izar Colony | Human | 2183 | Confirmed member in ST reference: Star Charts. |
J
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Janus VI | Horta | Confirmed member in ST novel: Articles of the Federation. | ||
Jezero | Jezero natives | before 2269 | Confirmed member in TOS novel: Death's Angel. | |
Jotunheim | before 2270 | Confirmed member in TOS novel: From the Depths. |
K
planet/system | state | species | admitted | notes |
---|---|---|---|---|
K'normia | K'normian | Confirmed member in The Motion Picture | ||
Kaferia | Kaferian | 2378 | Confirmed in Star Charts | |
Kashet | Kasheeta | Confirmed member in Star Trek IV Sourcebook Update | ||
Kazar, Kazar system | Kazarite | Confirmed member in The Motion Picture | ||
Kerovi | Kerovian | Confirmed member in VOY - Spirit Walk novel: Old Wounds. Left the Federation in 2378. (VOY novel: Full Circle) | ||
Klaestron IV | Klaestron | 2378 | Confirmed in Star Charts | |
Klingon | before 2769 | Confirmed member in STO - Future Proof mission: "Time and Tide". Member planet or state not specified. | ||
Koa (Mu Arae) | Koas | 2380 | Admission into the Federation depicted in ST novel: Articles of the Federation. | |
- | K'Vin Hegemony | K'Vin | 2260s | Confirmed member in TNG novel: Doomsday World. |
L
planet/system | state | species | admitted | notes |
---|---|---|---|---|
- | Lendrin | 2370s | Confirmed member in VOY novel: Children of the Storm. | |
Lorillia | Lorillian | before 2381 | Confirmed member in ST - Destiny novel: Lost Souls. | |
Lrru-Ir | Irriol Whole | Irriol | before 2379 | Confirmed member in TTN novel: Orion's Hounds. |
Luna | Lunar Colonies | Human | 2161 | Charter member at formation of the Federation in ST reference: Star Charts. |
Lembatta Prime | by 2380 | Confirmed member in ST novel: Articles of the Federation. |
M
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Magna Roma | Magna Roman | Confirmed member in The Captains' Honor | ||
Makkus | Makkusian | Confirmed member in Excalibur. | ||
Mantilles | Confirmed member in Star Trek Maps | |||
Marcos XII | Various, Federation colony | Confirmed member in Star Trek Maps, details per The Worlds of the Federation | ||
Mars | Confederated Martian Colonies | Human | 2162 | Confirmed in ENT - Rise of the Federation novel: A Choice of Futures |
Medusa | Medusan | - Confirmed member in Star Trek Maps and Is There in Truth No Beauty? | ||
Megara | Megarite | Confirmed member in The Motion Picture | ||
Melkot | Melkot (Melkotian) | Confirmed member in The Worlds of the Federation | ||
Menk | Commonwealth of Menk and Valakis | Menk and Valakian | 2236 | Confirmed member in ST reference: Star Charts. |
Merak II | Merakan | Confirmed member in Star Trek Maps, details per The Worlds of the Federation | ||
Monchezke | Monchezkin | before 2233 | Confirmed member in ST movie & novelization: Star Trek (2009). |
N
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Nador | Nadorian | 2267 | Confirmed in TOS novel: Gemini. | |
Napea | Napean | Confirmed member in ST reference: Star Charts. | ||
Nasat | Nasat | before 2380 | Confirmed member in ST novel: Articles of the Federation. | |
New Paris | Human | before 2378 | Confirmed member in ST reference: Star Charts. | |
New Romulus | Romulan Republic | Romulan | before 2769 | Confirmed member in STO - Future Proof mission: "Time and Tide". |
New Xannon | Xanno | 2229 | Confirmed in TOS novel: The Delta Anomaly. | |
New Xindus | Xindi Council | Xindi | 2311 | Confirmed member in ST reference: Federation: The First 150 Years. |
O
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Ontail (Ona) | Ontailian | 2374 | Confirmed member in ST novel: Articles of the Federation and TNG #68 | |
Oriki | Oriki | Confirmed member in Vulcan's Heart | ||
Orodanga | Ithenite | Confirmed member in Journey to Babel | ||
Osadj | Osadjani | Confirmed member in Starfleet: Year One |
P
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Pacifica | Selkie | before 2378 | Confirmed member in ST reference: Star Charts. | |
Pahkwa Majoris | Pahkwa-thanh | 2360 | Confirmed member in TTN novel: Orion's Hounds. | |
Pandril | Pandrilite | Confirmed member in ST novel: Articles of the Federation. | ||
Pangea | Human (Pangean) | Confirmed member in TNG novel: A Time for War, A Time for Peace. | ||
Peliar Zel II | Peliar | Confirmed member in The Host | ||
Penzatti | Penzatti | Confirmed member in Vendetta | ||
Phylos | Phylosian | Details per The Worlds of the Federation |
R
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Ramatis III | Ramatian | Confirmed member in Star Trek: Destiny: Gods of Night. | ||
Regulus III | Regulan | Confirmed member in ST reference: Star Charts. | ||
Regulus V | Regulan | Confirmed member in ST reference: Star Charts. | ||
Rhaandarel (Rhaandaran) | Rhaandarite | Confirmed member in The Voyage Home. | ||
(Beta) Rigel system | United Rigel Worlds and Colonies | Rigelian | 2164 | Joined in ENT - Rise of the Federation novel: Tower of Babel. |
Risa | Risian Hedony | Risian | 2249 | Confirmed member in Captain's Holiday, Details per Star Charts |
S
planet/system | state | species | admitted | notes |
---|---|---|---|---|
S'ti'ach'aas | S'ti'ach | Confirmed member in TTN novel: Orion's Hounds. | ||
Sauria | Saurian | Confirmed member in The Motion Picture | ||
Selene | Selenean | Confirmed member in TTN novel: Sword of Damocles. | ||
Selelvia | Selelvian | Left the Federation in 2376. Confirmed former member in ST novel: Articles of the Federation. | ||
Sherman's Planet | Sherman's Planet Joint Administrative Territory | Human/Klingon | Also part of the Klingon Empire. Details per ST reference: Star Charts. | |
Shamin/O'Ryan's Planet | Shamin | Confirmed member in The Motion Picture | ||
Sigma Iotia II | Iotian | Confirmed member in The Lost Years | ||
Ssan | Ssana | Confirmed member in Shadows on the Sun | ||
Sulamid | Sulamid | before 2380 | Confirmed member in ST novel: Articles of the Federation. |
T
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Tandar Prime | Tandaran | 2320s | Confirmed member in DTI novel: Watching the Clock. | |
Tau Ceti III | Kaferian | before 2378 | Confirmed member in ST reference: Star Charts. | |
Tellar | United Planets of Tellar | Tellarite | 2161 | Confirmed founding member in Zero Hour |
Terra Nova | Terra Nova Colony | Novan | 2178 | Confirmed member in ST reference: Star Charts. |
Tessen III | Tessenite | Confirmed member in ST reference: Star Charts. | ||
Tenara | Human (Tenaran) | Confirmed member in The Captains' Honor | ||
Theta Kiokis II | Details per The Worlds of the Federation | |||
Tiburon | Tiburon | 2190 | Confirmed member in ST novel: Articles of the Federation. and Star Trek Maps | |
Triex | Triexian | Confirmed member in ST novel: Articles of the Federation. | ||
Trillius Prime (Trill) | Trill Symbiosis | Trill | 2285 | Confirmed member in ST reference: Star Charts. |
Tyrellia | Tyrellian | Confirmed member in ST reference: Star Charts. |
U
planet/system | state | species | admitted | notes |
---|---|---|---|---|
- | Ullian Free State | Ullian | Confirmed member in TNG - Section 31 novel: Rogue. | |
Umoth VIII | Confirmed member in ST reference: Star Charts. |
V
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Valzhan | Valzhan | 2268 | Confirmed member in SCE eBook: Where Time Stands Still). | |
Vega IX | Vega Colony | Humans | 2164 | Joined in ENT - Rise of the Federation novel: Tower of Babel. |
Verdanis (Terratin) | Terra 10 | mutated Humans | before 2378 | Confirmed member in ST reference: Star Charts. |
Vestios system | Vestian | 2310 | Confirmed member in Burning Dreams | |
Vico V | before 2378 | Confirmed member in ST reference: Star Charts. | ||
Vobilin | Vobilite | Confirmed member in Starfleet: Year One | ||
Vorgon | Vorgons | 2359 | Confirmed member in TNG novel: Exiles. | |
Vulcan | Confederacy of Vulcan | Vulcan | 2161 | Confirmed founding member in ENT - Rise of the Federation novel: A Choice of Futures. |
X
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Xelata | Xelatian | Confirmed member in FASA module: Star Trek IV Sourcebook Update. |
Y
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Yridia Prime | Yridian | before 2378 | Confirmed member in ST reference: Star Charts. |
Z
planet/system | state | species | admitted | notes |
---|---|---|---|---|
Zadar IV | before 2378 | Confirmed member in ST reference: Star Charts. | ||
Zakdorn | Zakdorn | 2344 | Confirmed in ST novel: Articles of the Federation. | |
Zalda (Zald) | Zaldan | 2280 | Confirmed in ST novel: Articles of the Federation. | |
Zaran II | Zaranite | Confirmed member in FASA module: Star Trek IV Sourcebook Update. | ||
Zytchin III | before 2378 | Confirmed member in ST reference: Star Charts. |