List of Terran Commonwealths

This is a non-exhaustive list of Terran Commonwealths. It includes all Commonwealths with a population of over 100 million. Commonwealths with a lesser population included here are either in a system with another major Commonwealth or for their strategic importance. Note this list corresponds to the last census. 
Rank	Commonwealth name 	Planet 	System 	Population 2718(in millions)	Share of aliens	Founded in	Commonwealth capital
1 	Commonwealth of All Peoples of Earth	Earth (Sol 3) 	Sol 	9,108 	10% 	2072 	Brussels
2 	Republic of New Sidon 	Proxima Centauri 2 	Alpha Centauri	6,456 	7% 	2223 	Bridgehead
3 	Hiigaran Republic 	Aarran 3 	Aarran 	4,836 	8% 	2335 	Daiamid
4 	Martian Administration 	Mars (Sol 4) 	Sol 	4,056 	4% 	2096 	New Jamestown
5 	Union of Venus 	Venus (Sol 2) 	Sol 	3,923 	9% 	2183 	Elys
6 	Republic of New Athens 	Barnard's 2 	Barnard's 	3,864 	3% 	2301 	Boreapolis
7 	Commonwealth of New Rome 	Sirius 2 	Sirius 	3,760 	2% 	2294 	Fields Palatine
8 	Xanadu Administrative Authority 	Xanadu 2 	Xanadu 	3,684 	9% 	2256 	Xanadu City
9 	Commonwealth of New Tyre 	Toliman 3 	Alpha Centauri	3,562 	6% 	2254 	Tyrum
10 	Republic of Rechio 	Achernar 4 	Achernar 	3,203 	26% 	2394 	Reyenne
11 	Commonwealth of New Babylon 	Toliman 3a 	Alpha Centauri	2,564 	3% 	2307 	Whiteport
12 	Commonwealth of New Thebes 	Barnard's 3 	Barnard's 	2,215 	2% 	2308 	Minas
13 	Commonwealth of New Constantinople 	Sirius 3 	Sirius 	1,678 	5% 	2300 	Basileus
14 	Commonwealth of New Samarkand 	Sirius 1 	Sirius 	1,231 	1% 	2325 	Temerfa
15 	Commonwealth of New Syracuse 	Antares 3 	Antares 	1,228 	3% 	2424 	Orontes
16 	Commonwealth of New Jericho 	Antares 5 	Antares 	985 	4% 	2443 	Sagal
17 	Commonwealth of Io 	Io, moon of Jupiter (Sol 5a) 	Sol 	926 	7% 	2174 	Jovia
18 	Commonwealth of Hakkor 	Charum 5 	Charum 	896 	11% 	2420 	Shyuum
19 	Commonwealth of Gondwana 	Vaalbara 3 	Vaalbara 	873 	0.36% 	2400 	Gond
20 	Commonwealth of Europa 	Europa, moon of Jupiter (Sol 5b) 	Sol 	826 	4% 	2163 	New Stockholm
21 	Commonwealth of Ganymede 	Ganymede, moon of Jupiter (Sol 5c)	Sol 	635 	6% 	2185 	Terminus
22 	Commonwealth of Caladan 	Atreides 2 	Atreides 	486 	9% 	2489 	Cala
23 	Commonwealth of Titan 	Titan, moon of Saturn (Sol 6f) 	Sol 	458 	6% 	2185 	Proscenium
24 	Commonwealth of Corellia 	Corelia 2 	Corelia 	452 	11% 	2584 	Do
25 	Commonwealth of Triton 	Triton, moon of Neptune (Sol 8b) 	Sol 	418 	2% 	2236 	Triton City
26 	Commonwealth of Enceladus 	Enceladus, moon of Saturn (Sol 6b)	Sol 	368 	6% 	2202 	Gates
27 	Commonwealth of Polaris 	Solana 2 	Solana 	321 	34% 	2487 	Apogee
28 	Commonwealth of Callisto 	Callisto, moon of Jupiter (Sol 5d)	Sol 	226 	1% 	2312 	Newport
29 	Commonwealth of Gondor 	Gondor 3 	Gondor 	76 	0.12% 	2610 	Minas Tirith
30 	Commonwealth of Melchior 	Solana 6c 	Solana 	48 	14% 	2512 	Malkuth
31 	Commonwealth of Laurasia 	Vaalbara 2 	Vaalbara 	36 	2% 	2411 	Armel
32 	Commonwealth of Rohan 	Rohan 6a 	Rohan 	23 	3% 	2678 	Edoras
33 	Commonwealth of Kharak 	Aarran 1 	Aarran 	16 	Negligeable 	2521 	Tiir
 	Glory 	 	 	 	 	 	
 	Prospero 	 	 	 	 	 	
 	Kaitan 	 	 	 	 	 	
 	Drake 	 	 	 	 	 	
 	Caius 	 	 	 	 	 	
 	Fel 	 	 	 	 	 	
 	Serendipity 	 	 	 	 	 	
 	Unity 	 	 	 	 	 	
 	Victory 	 	 	 	 	 	
 	Madrigal 	 	 	 	 	 	
 	Concord 	 	 	 	 	 	
 	Eden 	 	 	 	 	 	
 	Ashor 	 	 	 	 	 	
 	Tianxi