👥 Kenyan Counties by Population
Population of each of Kenya's 47 counties at the 2019 census.
Nairobi9.1%
Kiambu5%
Nakuru4.5%
Kakamega3.9%
Bungoma3.5%
Meru3.2%
Turkana3.1%
Kilifi3%
Machakos3%
Kisii2.6%
Mombasa2.5%
Uasin Gishu2.4%
Narok2.4%
Kisumu2.4%
Kitui
Homa Bay
Kajiado
Migori
Murang'a
Siaya
Trans-Nzoia2.1%
Makueni2.1%
Kericho
Busia
Nandi1.8%
Bomet1.8%
Mandera1.8%
Kwale1.8%
Garissa1.7%
Wajir
Nyeri
Baringo
Nyandarua
West Pokot
Kirinyaga
Embu
Nyamira
Vihiga
Laikipia
7 others4.6%
1
Nairobi
4.40M
2
Kiambu
2.42M
3
Nakuru
2.16M
4
Kakamega
1.87M
5
Bungoma
1.67M
6
Meru
1.55M
7
Turkana
1.51M
8
Kilifi
1.45M
9
Machakos
1.42M
10
Kisii
1.27M
11
Mombasa
1.21M
12
Uasin Gishu
1.16M
13
Narok
1.16M
14
Kisumu
1.16M
15
Kitui
1.14M
16
Homa Bay
1.13M
17
Kajiado
1.12M
18
Migori
1.12M
19
Murang'a
1.06M
20
Siaya
0.99M
21
Trans-Nzoia
0.99M
22
Makueni
0.99M
23
Kericho
0.90M
24
Busia
0.89M
25
Nandi
0.89M
26
Bomet
0.88M
27
Mandera
0.87M
28
Kwale
0.87M
29
Garissa
0.84M
30
Wajir
0.78M
31
Nyeri
0.76M
32
Baringo
0.67M
33
Nyandarua
0.64M
34
West Pokot
0.62M
35
Kirinyaga
0.61M
36
Embu
0.61M
37
Nyamira
0.61M
38
Vihiga
0.59M
39
Laikipia
0.52M
40
Marsabit
0.46M
41
Elgeyo-Marakwet
0.45M
42
Tharaka-Nithi
0.39M
43
Taita–Taveta
0.34M
44
Tana River
0.32M
45
Samburu
0.31M
46
Isiolo
0.27M
47
Lamu
0.14M
Highlights
Within Kenya, Nairobi ranks first in 2019 with 4.40M, followed by Kiambu (2.42M) and Nakuru (2.16M).
Nairobi is 1.8 times higher than Kiambu, the runner-up.
Across 47 entries, values run from 4.40M (Nairobi) to 0.14M (Lamu), with a median of 0.89M.
Source: Kenya National Bureau of Statistics (KNBS), 2019 census (via Wikipedia), 2019. Unit: million people.
Source: Kenya National Bureau of Statistics (KNBS), 2019 census (via Wikipedia) · CC BY-SA 4.0 (Wikipedia); underlying data © the cited publisher · fetched Oct 14, 2026