Welcome to Kenya National Bureau of Statistics

The 2010 Constitution of Kenya that was promulgated on 27 August 2010 divided the country into 47 Counties. The release of 2009 Kenya population and housing census basic report on 31st August 2010 produced information on the 47 Counties which included population distribution by sex, number of households, area and density by each County.

Population Distribution by Sex, Number of Households, Area and Density by Counties
	Male	Female	Total	Households	Area in Sq. Km.	Density
Total	19,192,378	19,417,719	38,610,097	8,767,954	581,309.29	66.42

NAIROBI	1,605,219	1,533,150	3,138,369	985,016	695.10	4,514.96
Total	1,605,219	1,533,150	3,138,369	985,016	695.10	4,514.96

NYANDARUA	292,152	304,116	596,268	143,879	3,245.25	183.74
NYERI	339,724	353,834	693,558	201,703	3,337.09	207.83
KIRINYAGA	260,628	267,426	528,054	154,220	1,479.09	357.01
MURANG'A	457,860	484,721	942,581	255,696	2,558.82	368.37
KIAMBU	802,603	820,679	1,623,282	469,244	2,543.42	638.23
Total	2,152,967	2,230,776	4,383,743	1,224,742	13,163.67	1,755.18

MOMBASA	486,924	452,446	939,370	268,700	218.86	4,292.09
KWALE	315,994	333,937	649,931	122,047	8,270.15	78.59
KILIFI	535,531	574,204	1,109,735	199,764	12,609.74	88.01
TANARIVER	119,857	120,218	240,075	47,414	38,436.91	6.25
LAMU	53,045	48,494	101,539	22,184	6,273.12	16.19
TAITATAVETA	145,333	139,324	284,657	71,090	17,084.04	16.66
Total	1,656,684	1,668,623	3,325,307	731,199	82,892.82	4,497.79

MARSABIT	151,110	140,056	291,166	56,941	70,961.19	4.10
ISIOLO	73,693	69,601	143,294	31,326	25,336.07	5.66
MERU	670,656	685,645	1,356,301	319,616	6,933.01	195.63
THARAKA	178,447	186,883	365,330	88,803	2,638.83	138.44
EMBU	254,302	261,910	516,212	131,683	2,818.04	183.18
KITUI	481,283	531,426	1,012,709	205,491	30,496.51	33.21
MACHAKOS	543,138	555,446	1,098,584	264,500	6,208.24	176.96
MAKUENI	430,708	453,819	884,527	186,478	8,008.75	110.45
Total	2,783,337	2,884,786	5,668,123	1,284,838	153,400.64	847.63

GARISSA	334,941	288,119	623,060	98,590	44,175.02	14.10
WAJIR	363,775	298,166	661,941	88,574	56,685.75	11.68
MANDERA	559,938	465,818	1,025,756	125,497	25,991.47	39.47
Total	1,258,654	1,052,103	2,310,757	312,661	126,852.24	65.25

SIAYA	398,650	443,654	842,304	199,034	2,530.38	332.88
KISUMU	474,756	494,153	968,909	226,719	2,085.93	464.50
HOMABAY	462,450	501,344	963,794	206,255	3,183.29	302.77
MIGORI	444,358	472,812	917,170	180,211	2,595.94	353.31
KISII	550,451	601,831	1,152,282	245,029	1,317.53	874.58
NYAMIRA	287,045	311,207	598,252	131,039	899.28	665.25
Total	2,617,710	2,825,001	5,442,711	1,188,287	12,612.35	2,993.29

TURKANA	445,071	410,328	855,399	123,191	68,680.11	12.45
WESTPOKOT	254,826	257,864	512,690	93,777	9,169.45	55.91
SAMBURU	112,003	111,944	223,947	47,354	21,022.27	10.65
TRANSNZOIA	407,170	411,587	818,757	170,117	2,495.53	328.09
BARINGO	279,081	276,480	555,561	110,649	11,015.32	50.44
UASINGISHU	448,990	445,189	894,179	202,291	3,345.21	267.30
ELGEYO-MARAKWET	183,736	186,262	369,998	77,555	3,029.78	122.12
NANDI	376,488	376,477	752,965	154,073	2,884.18	261.07
LAIKIPIA	198,625	200,602	399,227	103,114	9,461.92	42.19
NAKURU	804,577	798,748	1,603,325	409,836	7,495.07	213.92
NAROK	429,027	421,893	850,920	169,220	17,933.05	47.45
KAJIADO	345,143	342,169	687,312	173,464	21,900.97	31.38
KERICHO	298,878	291,812	590,690	127,581	2,157.89	273.73
BOMET	442,830	449,005	891,835	174,914	2,792.40	319.38
Total	5,026,445	4,980,360	10,006,805	2,137,136	183,383.15	2,036.08

KAKAMEGA	800,977	859,674	1,660,651	355,679	3,017.66	550.31
VIHIGA	262,718	291,904	554,622	123,347	564.47	982.55
BUNGOMA	671,548	703,515	1,375,063	270,824	3,032.15	453.49
BUSIA	356,119	387,827	743,946	154,225	1,695.03	438.90
Total	2,091,362	2,242,920	4,334,282	904,075	8,309.31	2,425.25