Federation Members

Article in state of progress. Dates from The Guide take precedence.

Member	Species	Lifespan	Joined	Note
Altair	Altairian		2269	entry made
Vulcan	Vulcan	200	2161	entry made
Earth	Human	120	2161	entry made
Andor	Andorian & Aenar	135 (both)	2161	entry made
Tellar	Tellarite	90	2161	entry made
Betazed	Betazoid	170	2273	entry made
Bolarus	Bolian	100	2270	entry made
Trill	Trill (humanoid)	90	2285
Cait	Caitian	140	2272
Dhei (Delta Triciatu IV)	Deltan	130	2259	First Contact (by Earth) in 2141
Denobulas	Denobulan	250	2223	entry made
Efros Delta	Efrosian	140	2252
Grazer	Grazerite	115	2305
Tiburon	Tiburon	145	2229
Zakdorn	Zakdorn	150	2344
Benzar	Benzite	100	2369
Betelgeuse	Betelgeusian	160	2230
Bynaus	Bynar	135	2356
Ekos	Ekosian	120	2373
Katria	Katrian	120	2302
Napea	Napean	130	2320
Arcturus	Arcturan	90	2192	entry made
Selay	Selay	180	2365
Antica	Antican	50	2365
Arcadia	Arcadian	130	2335
Fillandia	Ariolo	100	2262
Althos	Bzzit Khaht	50	2279
Kashet	Kasheeta	30	2281
Kazar	Kazarite	140	2195	entry made
Xeletia	Xeletian	130	2289	entry made
Zaran	Zaranite	120	2257
Halii	Haliian	145	2263
Algol	Algolian	95	2280
Arbaza	Arbazan	130	2263
Coridan	Coridan	100	2267
Hekaras	Hekaran	130	2272
Peliaria	Peliarian	115	2226
Chelar (Rigel III)	Chelarian	130	2275	entry made
Risa	Risan	160	2249	entry made
Bajor	Bajoran	100	2376
Antares	Antaran	110	2206
Bijan	Bijani	140	2192	entry made
Aaamazzara	Aaamazzarite	145	2209
Argelius	Argelian	120	2230
Arkaria	Arkarian	125	2203	entry made
Gallam	Gallamite	135	2298
Koblia	Kobliad	90	2369
Halana	Halanan	125	2378
Angosia	Angosian	100	2368
Ardana	Ardanan	130	2263
Aurelia	Aurelian	280	2168	entry made
Ba'ku	Ba'ku	125	2377
Cairn	Cairn	130	2372
Edos	Edosian	352	2197	entry made
Elas	Elasian	120	after 2258	but before 2268
Elaysia	Elaysian	135	2276
Hermat	Hermat	40 (100)	2322
Janus	Horta	50,000	2270
Menk (Valakis)	Menk & Valakian	140 & 55	2236	first (Earth) contact 2151; Valakians dying out
Nasat	Nasat & Citoac	100 (& unk)	2294	before 2380
Pahkwa Majoris	Pahkwa-thanh	400	2360
Rhaandaran	Rhaandarite	600	2217
Rigel V	Rigelian	200	2297	entry made; 'Vulcans' of Rigel V
Sauria	Saurian	220	2187	entry made
Terrellia	Terrellian	135	2341
Troyius	Troyian	135	2311
Tygaria	Tygarian	140	2219
Ullia	Ullian	160	2320
Xyrillia	Xyrillian	110	2259
Zeon	Zeon	150	2294
Rigel IV	Human	120	2287	entry made; of Rigel IV
Alaj	Alajian		prior to 2366	presumably new members
Aldebaran	Human and Aldebaran		2216	indigenous population; joined after colonization by Earth
Alonis	Alonis		2336
Alpha III	Human		2163	Earth colony "Terra Four"
Alpha Centauri	Human		2161	Earth colony (not considered a 'founding' member)
Alpha Proxima II			after 2189	Federation colony (2189)
Andros III			prior to 2373	presumably a Federation colony
Antede III	Antedean		between 2365 & 2380
Antos IV	Antosian		prior to 2270	discovered prior to 2156
Arken II	Arkenite		2165	former subjects of the Andorian Empire
Aronnia	Aronnian		2253
Aulac	Aulacri		prior to 2273	may be well prior, due to serving Starfleet officers
Axanar	Axanarri		between 2161 and 2241; again in 2250	declared independence in August 2241; rejoined 2250
Berengaria VII	Human		after 2161	Earth colony; joined possibly shortly after Romulan War/UFP founding
Beta Ophiuchi			prior to 2269	Federation colony; apparently a member during TOS time
Bilana III	Bilannan		prior to 2368	'feels' like a newer member during TNG
Binderia	Binderian		prior to 2333	may be (or not) well prior, due to serving (rare) Starfleet officers
Bre'el IV	Bre'ella		maybe prior to 2366	definitely prior to 2380
Buran	Burani		2369
Candelar IV	Candelaran		prior to 2355	may be just prior, but not required
Catulla	Catullan		2185
Cestus III	Human		2271	Starfleet outpost (2265) destroyed in 2267; colony established following
Chal	Chalchaj'qmey		by 2373	problematic entry into UFP
Cygnet XIV	Cygnian		2251
Damiano	Damiani		2371	protectorate status in 2341
Danter	Danteri		by 2370	probably joined in the 2360s
Daran V (Kachissat)	Shesshran		following 2264	probably in 2270s
Dedderai	Dedderac		prior to 2355	probably between 2201 and well prior to 2250
Delb II	Delbian		prior to 2367	probably well prior to 2367
Deneb II (Alpha Cygni II)	Bandi		after 2364
Deneb IV (Alpha Cygni IV)	Bandi		after 2364
Deneb IV (Deneb Kaitos IV)	Denebian (Deirr)	600	2259
Deneb V (Deneb Kaitos V)	Denebian (Klaha)	600	2259
Deneb VI (Deneb Kaitos VI)	Denebian (Eyren)	600	2259
Delta Sigma IV	Bader & Dorset		prior to 2379	presumably not too long before 2379
Deneva (Kappa Fornacis II)	Human		between 2267 and 2380	presumably prior to 2301
Djana	Inari & Djanai		prior to 2270	probably after Romulan War (2161), but anytime including 2260s
Dramia	Dramian		prior to 2269
Galakhin	Galakhi		prior to 2200
Gemworld	Yilltern, Lipul, Frills, Elaysian, Gendlii & Alpusta		prior to 2300
Gideon (Delta Dorado)	Gideonite		prior to 2378
Gnala	Gnalish		prior to 2333	probably at least a decade prior to 2333
Guido	Guidon		prior to 2363
Gullrey	Rey		after 2269	probably at least a decade after 2269
Hamal IV	Hamalki	>120	prior to 2275	probably well prior to 2275
Hermata	Hermat	40	prior to 2370
Huan	Huanni		between 2250 and 2300
Igre	Igresh		before 2364
Izar	Human		2183 & 2260	withdrew from the UFP between 2238 & 2240
Jezero	Jezero		before 2269
Jotunheim	Human		prior to 2270
K'norm	K'normian		prior to 2273
Kaferia	Kaferian (Tau Cetiians)		prior to 2265
Kerovi	Kervoian		prior to 2378	withdrew from the UFP in 2378
Klaestron IV	Klaestron		between 2369 and 2378
Koa (Mu Arae)	Koas		2380
K'Vin	K'Vin		2242	withdrew from the UFP in 2332 after "nearly 100 years"; maintained peace since
Lendria	Lendrin		between 2371 and 2378
Lorillia	Lorillian		between 2161 & 2381	most likely closer to 2161; destroyed 2381
Lrru-Ir	Irriol		before 2379
Luna	Human		2161	Earth colony (not considered a 'founding' member)
Lembatta Prime	'Lembattan		prior to 2380
Magna Rome	Magna Roman		between 2288 and 2350	probably closer to 2288
Mantilles	various		after 2269	former Federation colony
Makkus	Makkusian		prior to 2376
Marcos XII	various		former Federation colony; prior to 2270
Mars	Human		2162
Medusa ( Xi Hydrae IV)	Medusan		prior to 2268	probably well before
Megara	Megarite		prior to 2273
Melkot	Melkot (Melkotian)		around 2273	first contact 2268; joined just prior to Betazed
Merak II (Latis Cyrtiva II)	Vulcan		2161	Vulcan colony
Monchezke	Monchezkin		before 2233
Nador	Nadorian		2267
New Paris	Human		between 2270 and 2287	human colony (2105)
New Xannon	Xanno		2229
New Xindus	Xindi		2311
Ontail (Ona)	Ontailian		2374
Oriki	Oriki		2344	probably as a result of Ambassador Spock's efforts
Orodanga	Ithenite		prior to 2267
Osadj	Osadjani		shortly after 2161	probably within 10 years
Pacifica	Selkie and various		after 2270	Federation colonies in 2260s
Pandril	Pandrilite		prior to 2380	probably before 2245
Pangea	Human		prior to 2380	former Federation colony
Penzatti	Penzatti		prior to 2367
Phylos	Phylosian		prior to 2294
Ramatis III	Ramatian		prior to 2367	destroyed in 2381
Khepri (Regulus III)	Veliki		prior to 2370
Pthah (Regulus V)	Caitian		prior to 2370
S'ti'ach'aas	S'ti'ach		by 2379	probably within a decade prior
Selene	Selenean		prior to 2381	probably within 25 years prior
Selelvia	Selelvian		prior to 2376	membership within UFP revoked
Shamin	Shamin		prior to 2273
Sigma Iotia II	Iotian		2366	UFP Protectorate 2268
Ssan	Ssana		prior to 2293
Sulamid	Sulamid		prior to 2276

Bold indicates a 'best-guess'.

Resources

• Memory Alpha: "Federation members"
• Memory Beta: "Federation members"