Oblivion:Demographics

Race	Anvil		Bravil		Bruma		Cheydinhal		Chorrol		Imperial City		Leyawiin		Skingrad		TOTAL
	#	%	#	%	#	%	#	%	#	%	#	%	#	%	#	%	#	%
Altmer	3	4%	8	15%	3	6%	7	12%	3	6%	12	6%	2	3%	6	9%	44	7%
Argonian	2	3%	5	9%	1	2%	4	7%	4	7%	9	5%	19	26%	2	3%	46	7%
Bosmer	13	19%	5	9%	2	4%	3	5%	1	2%	14	7%	5	7%	7	11%	50	8%
Breton	8	12%	11	20%	6	12%	5	9%	8	15%	28	14%	0	0%	9	14%	75	12%
Dunmer	5	7%	7	13%	1	2%	13	22%	8	15%	16	8%	3	4%	6	9%	59	9%
Imperial	14	21%	7	13%	14	27%	8	14%	18	32%	70	36%	18	25%	17	26%	166	27%
Khajiit	3	4%	6	11%	2	4%	2	4%	1	2%	7	4%	16	22%	1	2%	38	6%
Nord	8	12%	3	5%	19	37%	3	5%	3	6%	12	6%	4	6%	8	12%	60	10%
Orc	2	3%	3	5%	1	2%	10	18%	5	9%	9	5%	3	4%	5	8%	38	6%
Redguard	10	15%	0	0%	2	4%	2	4%	3	6%	17	9%	2	3%	4	6%	40	8%
TOTAL	68		55		51		57		54		194		72		65		616

Note that this does not include unnamed guards. Adding the guards would increase the Imperial count (all unnamed guards are Imperial) in each city by the following:

Anvil	+22
Bravil	+20
Bruma	+21
Cheydinhal	+26
Chorrol	+21
Imperial City	+119
Leyawiin	+19
Skingrad	+22
TOTAL	+270

This chart shows the racial make-up of each of the outer cities in Cyrodiil (Imperial City omitted for ease of reading).