Some obvious disclaimers:

• Only level 70 characters are included, so this will not necessarily reflect the realm as a whole
• Not all level 70 characters are counted. Realms with low population counts will have skewed and unreliable figures.
• Since there is a tendancy for guildmates to also be included, this effect can skew numbers greatly towards one side.
• Since this calculates by character and not by player, this effect can skew numbers greatly towards one side.
• This is in no way suggesting that the real overall realm counts are anywhere close to the figures presented below.

Realm counts for characters in the wowmetrics database. This page is updated daily:

Realm	Total	Alliance	Alliance Percent	Horde	Horde Percent
Aegwynn	1130	642	56.81%	488	43.19%
Aerie Peak	991	696	70.23%	295	29.77%
Agamaggan	1046	459	43.88%	587	56.12%
Aggramar	1700	1165	68.53%	535	31.47%
Akama	1170	524	44.79%	646	55.21%
Alexstrasza	1252	881	70.37%	371	29.63%
Alleria	1657	1181	71.27%	476	28.73%
Altar of Storms	813	416	51.17%	397	48.83%
Alterac Mountains	862	504	58.47%	358	41.53%
Aman'Thul	966	579	59.94%	387	40.06%
Andorhal	1115	539	48.34%	576	51.66%
Anetheron	847	379	44.75%	468	55.25%
Antonidas	122	81	66.39%	41	33.61%
Anub'arak	618	148	23.95%	470	76.05%
Anvilmar	765	531	69.41%	234	30.59%
Arathor	779	487	62.52%	292	37.48%
Archimonde	1774	894	50.39%	880	49.61%
Area 52	1112	429	38.58%	683	61.42%
Argent Dawn	1771	1362	76.91%	409	23.09%
Arthas	1880	906	48.19%	974	51.81%
Arygos	1611	943	58.54%	668	41.46%
Auchindoun	396	50	12.63%	346	87.37%
Azgalor	2213	1138	51.42%	1075	48.58%
Azjol-Nerub	1875	1183	63.09%	692	36.91%
Azshara	1006	554	55.07%	452	44.93%
Azuremyst	355	305	85.92%	50	14.08%
Baelgun	999	369	36.94%	630	63.06%
Balnazzar	746	302	40.48%	444	59.52%
Barthilas	1718	886	51.57%	832	48.43%
Black Dragonflight	2110	1165	55.21%	945	44.79%
Blackhand	1657	1093	65.96%	564	34.04%
Blackrock	2508	1301	51.87%	1207	48.13%
Blackwater Raiders	173	83	47.98%	90	52.02%
Blackwing Lair	1311	393	29.98%	918	70.02%
Blade%27s Edge	2	1	50.00%	1	50.00%
Blade's Edge	434	287	66.13%	147	33.87%
Bladefist	213	123	57.75%	90	42.25%
Bladespire	8	2	25.00%	6	75.00%
Bleeding Hollow	1809	1114	61.58%	695	38.42%
Blood Furnace	173	57	32.95%	116	67.05%
Bloodhoof	1707	1159	67.90%	548	32.10%
Bloodscalp	1886	862	45.71%	1024	54.29%
Bonechewer	2282	1182	51.80%	1100	48.20%
Boulderfist	1718	806	46.92%	912	53.08%
Bronzebeard	1790	1243	69.44%	547	30.56%
Burning Blade	2195	921	41.96%	1274	58.04%
Burning Legion	1907	1052	55.17%	855	44.83%
Cenarion Circle	1489	844	56.68%	645	43.32%
Cenarius	1553	968	62.33%	585	37.67%
Cho%27gall	3	2	66.67%	1	33.33%
Cho'gall	1794	681	37.96%	1113	62.04%
Chromaggus	893	444	49.72%	449	50.28%
Coilfang	275	68	24.73%	207	75.27%
Crushridge	1606	767	47.76%	839	52.24%
Daggerspine	1961	806	41.10%	1155	58.90%
Dalaran	2154	1430	66.39%	724	33.61%
Dalvengyr	1184	501	42.31%	683	57.69%
Dark Iron	2164	1117	51.62%	1047	48.38%
Darkspear	2017	1008	49.98%	1009	50.02%
Darrowmere	503	149	29.62%	354	70.38%
Dath'Remar	1087	642	59.06%	445	40.94%
Deathwing	2155	1141	52.95%	1014	47.05%
Demon Soul	707	263	37.20%	444	62.80%
Dentarg	1070	450	42.06%	620	57.94%
Destromath	1991	1039	52.18%	952	47.82%
Dethecus	1934	867	44.83%	1067	55.17%
Detheroc	1609	664	41.27%	945	58.73%
Doomhammer	1602	1066	66.54%	536	33.46%
Draenor	1936	1423	73.50%	513	26.50%
Dragonblight	1434	816	56.90%	618	43.10%
Dragonmaw	2401	1153	48.02%	1248	51.98%
Drak'thul	1183	517	43.70%	666	56.30%
Draka	1123	609	54.23%	514	45.77%
Drenden	555	402	72.43%	153	27.57%
Dunemaul	1684	798	47.39%	886	52.61%
Durotan	1274	910	71.43%	364	28.57%
Duskwood	670	325	48.51%	345	51.49%
Earthen Ring	1429	958	67.04%	471	32.96%
Echo Isles	559	324	57.96%	235	42.04%
Eitrigg	1262	744	58.95%	518	41.05%
Eldre'Thalas	1436	847	58.98%	589	41.02%
Elune	1598	1016	63.58%	582	36.42%
Emerald Dream	1555	847	54.47%	708	45.53%
Eonar	1724	1081	62.70%	643	37.30%
Eredar	1879	953	50.72%	926	49.28%
Eversong	34	13	38.24%	21	61.76%
Executus	990	391	39.49%	599	60.51%
Exodar	126	41	32.54%	85	67.46%
Farstriders	460	295	64.13%	165	35.87%
Feathermoon	1354	923	68.17%	431	31.83%
Fenris	340	225	66.18%	115	33.82%
Firetree	1961	1013	51.66%	948	48.34%
Frostmane	2118	1306	61.66%	812	38.34%
Frostmourne	1890	809	42.80%	1081	57.20%
Frostwolf	2192	1114	50.82%	1078	49.18%
Garithos	1230	553	44.96%	677	55.04%
Garona	1543	1041	67.47%	502	32.53%
Gilneas	1560	972	62.31%	588	37.69%
Gnomeregan	935	644	68.88%	291	31.12%
Gorefiend	2117	1118	52.81%	999	47.19%
Gorgonnash	2427	1314	54.14%	1113	45.86%
Greymane	1445	887	61.38%	558	38.62%
Gul'dan	1130	436	38.58%	694	61.42%
Gurubashi	1786	698	39.08%	1088	60.92%
Hakkar	1018	527	51.77%	491	48.23%
Haomarush	1134	412	36.33%	722	63.67%
Hellscream	2203	1258	57.10%	945	42.90%
Honor Hold	13	8	61.54%	5	38.46%
Hydraxis	238	89	37.39%	149	62.61%
Hyjal	2071	1350	65.19%	721	34.81%
Icecrown	1587	1065	67.11%	522	32.89%
Illidan	2164	931	43.02%	1233	56.98%
Jaedenar	912	323	35.42%	589	64.58%
Jubei'Thos	1709	690	40.37%	1019	59.63%
Kael'thas	1254	741	59.09%	513	40.91%
Kalecgos	1465	648	44.23%	817	55.77%
Kargath	1491	937	62.84%	554	37.16%
Kel'Thuzad	2296	1213	52.83%	1083	47.17%
Khadgar	1862	1300	69.82%	562	30.18%
Khaz'goroth	1567	863	55.07%	704	44.93%
Khaz Modan	929	665	71.58%	264	28.42%
Kil%27jaeden	1	1	100.00%	0	0.00%
Kil'jaeden	2304	1164	50.52%	1140	49.48%
Kilrogg	1949	1137	58.34%	812	41.66%
Kirin Tor	1164	874	75.09%	290	24.91%
Korgath	1780	868	48.76%	912	51.24%
Korialstrasz	287	190	66.20%	97	33.80%
Kul Tiras	1263	610	48.30%	653	51.70%
Laughing Skull	2183	973	44.57%	1210	55.43%
Lethon	768	228	29.69%	540	70.31%
Lightbringer	1660	1106	66.63%	554	33.37%
Lightning's Blade	2138	1044	48.83%	1094	51.17%
Lightninghoof	1153	467	40.50%	686	59.50%
Llane	1754	1293	73.72%	461	26.28%
Lothar	1713	1194	69.70%	519	30.30%
Madoran	861	580	67.36%	281	32.64%
Maelstrom	1858	914	49.19%	944	50.81%
Magtheridon	1593	702	44.07%	891	55.93%
Maiev	256	33	12.89%	223	87.11%
Mal'Ganis	2497	1080	43.25%	1417	56.75%
Malfurion	1371	902	65.79%	469	34.21%
Malorne	1008	383	38.00%	625	62.00%
Malygos	1355	864	63.76%	491	36.24%
Mannoroth	2246	1068	47.55%	1178	52.45%
Medivh	1966	1402	71.31%	564	28.69%
Misha	138	79	57.25%	59	42.75%
Mok'Nathal	53	19	35.85%	34	64.15%
Moon Guard	214	162	75.70%	52	24.30%
Moonrunner	1442	971	67.34%	471	32.66%
Mug'thol	2055	904	43.99%	1151	56.01%
Muradin	802	584	72.82%	218	27.18%
Nagrand	149	72	48.32%	77	51.68%
Nathrezim	2031	1117	55.00%	914	45.00%
Nazgrel	117	45	38.46%	72	61.54%
Nazjatar	906	459	50.66%	447	49.34%
Ner'zhul	2388	1379	57.75%	1009	42.25%
Netherstorm	25	10	40.00%	15	60.00%
Nordrassil	51	12	23.53%	39	76.47%
Norgannon	1146	759	66.23%	387	33.77%
Onyxia	849	300	35.34%	549	64.66%
Perenolde	1567	972	62.03%	595	37.97%
Proudmoore	2107	1471	69.81%	636	30.19%
Quel'dorei	51	18	35.29%	33	64.71%
Ravencrest	666	500	75.08%	166	24.92%
Ravenholdt	282	55	19.50%	227	80.50%
Rexxar	1518	818	53.89%	700	46.11%
Rivendare	171	42	24.56%	129	75.44%
Runetotem	1356	690	50.88%	666	49.12%
Sargeras	2445	1248	51.04%	1197	48.96%
Scarlet Crusade	1238	801	64.70%	437	35.30%
Scilla	1204	487	40.45%	717	59.55%
Sen%27jin	1	0	0.00%	1	100.00%
Sen'jin	954	631	66.14%	323	33.86%
Sentinels	425	280	65.88%	145	34.12%
Shadow Council	1230	741	60.24%	489	39.76%
Shadowmoon	1575	819	52.00%	756	48.00%
Shadowsong	1503	930	61.88%	573	38.12%
Shandris	112	48	42.86%	64	57.14%
Shattered Halls	88	26	29.55%	62	70.45%
Shattered Hand	2567	1340	52.20%	1227	47.80%
Shu'halo	501	194	38.72%	307	61.28%
Silver Hand	1229	834	67.86%	395	32.14%
Silvermoon	1343	894	66.57%	449	33.43%
Sisters of Elune	335	156	46.57%	179	53.43%
Skullcrusher	2328	1004	43.13%	1324	56.87%
Skywall	1468	887	60.42%	581	39.58%
Smolderthorn	1931	793	41.07%	1138	58.93%
Spinebreaker	2114	850	40.21%	1264	59.79%
Spirestone	1903	958	50.34%	945	49.66%
Staghelm	1703	1126	66.12%	577	33.88%
Steamwheedle Cartel	823	544	66.10%	279	33.90%
Stonemaul	2097	1094	52.17%	1003	47.83%
Stormrage	1887	1384	73.34%	503	26.66%
Stormreaver	1991	1117	56.10%	874	43.90%
Stormscale	2099	1140	54.31%	959	45.69%
Suramar	1702	1254	73.68%	448	26.32%
Tanaris	316	167	52.85%	149	47.15%
Terenas	1782	1085	60.89%	697	39.11%
Terokkar	83	27	32.53%	56	67.47%
Thaurissan	785	216	27.52%	569	72.48%
The Consortium	10	1	10.00%	9	90.00%
The Forgotten Coast	540	143	26.48%	397	73.52%
The Scryers	426	214	50.23%	212	49.77%
The Underbog	473	248	52.43%	225	47.57%
The Venture Co	656	274	41.77%	382	58.23%
Thorium Brotherhood	954	544	57.02%	410	42.98%
Thrall	1204	645	53.57%	559	46.43%
Thrallmar	25	2	8.00%	23	92.00%
Thunderhorn	1576	964	61.17%	612	38.83%
Thunderlord	1644	1073	65.27%	571	34.73%
Tichondrius	2550	1021	40.04%	1529	59.96%
Tortheldrin	282	56	19.86%	226	80.14%
Trollbane	553	251	45.39%	302	54.61%
Turalyon	1344	812	60.42%	532	39.58%
Twisting Nether	1510	711	47.09%	799	52.91%
Uldaman	1006	618	61.43%	388	38.57%
Uldum	1749	985	56.32%	764	43.68%
Undermine	401	239	59.60%	162	40.40%
Ursin	1235	535	43.32%	700	56.68%
US Event Realm 2	6	2	33.33%	4	66.67%
Uther	1822	1148	63.01%	674	36.99%
Vashj	342	93	27.19%	249	72.81%
Vek'nilash	1233	787	63.83%	446	36.17%
Velen	131	86	65.65%	45	34.35%
Warsong	1574	726	46.12%	848	53.88%
Whisperwind	1902	1255	65.98%	647	34.02%
Wildhammer	1595	737	46.21%	858	53.79%
Windrunner	1232	985	79.95%	247	20.05%
Ysera	998	565	56.61%	433	43.39%
Ysondre	660	251	38.03%	409	61.97%
Zangarmarsh	514	324	63.04%	190	36.96%
Zul'jin	1935	1012	52.30%	923	47.70%
Zuluhed	553	218	39.42%	335	60.58%
Total	289785	157945	54.50%	131840	45.50%