Census 2019: 10 Most Populated Counties in Kenya

Population distribution per county, in relation to the 2019 Population and Housing Census, has Nairobi, Kiambu, Nakuru, Kakamega & Bungoma counties as the most populous counties.

The least populous counties include Lamu, Isiolo, Samburu, Tana River & Taita Taveta as per the report released on Monday, November 4, by the Kenya National Bureau of Statistics (KNBS) at State House Nairobi.

Nairobi has a total population of 4,394,073 while Kiambu has 2,417,705 residents followed by Nakuru (2,162,202), Kakamega (1,867,579), Bungoma has (1,670,570) and Mombasa County (1,208,333).

Lamu is the least populated county with 143,920 residents followed by Isiolo with 268,002, Samburu (310,327) and Tana River (315,943). 

Data showed that counties in northern Kenya have the largest families in terms of household analysis. 

The top counties in terms of household sizes are Mandera with 6.9 persons per family, Wajir at 6.1, Garissa 5.9, Marsabit 5.8, and Turkana 5.6.

West Pokot has five persons per house at 5.3, while Kwale is at 5.0. Nyeri, Kirinyaga and Kiambu are at 3.0. Murang'a and Embu at 3.3

Nairobi and Mombasa despite being amongst the most populous county have the lowest household sizes at 2.9 and 3.1 respectively.

The national average household size is 3.9.

The total enumerated population was 47,564,296 with male population at 23,548,056 and females at 24,014, 716. 

Below is a population breakdown of the remaining counties.

Kwale - 866,820

Kilifi - 1,453,787

Taita Taveta - 340,671

Garisa - 841,353

Wajir - 781,263

Mandera - 867,457

Marsabit - 459,785

Meru - 1,545,714

Tharaka Nithi - 393,177

Embu - 608,599

Kitui - 113,6187

Machakos - 1,421,932

Makueni - 987,653

Nyandarua - 638,289

Nyeri - 759, 164

Kirinyaga - 610, 411

Murang'a - 1,560,640

Turkana - 926, 976

West Pokot - 621,241

Trans Nzoia - 990,341

Uasin Gishu - 1,133,186

Elgeyo Marakwet - 454,480

Nandi - 885,711

Baringo - 666,763

Laikipia - 518,540

Narok - 1,157,873

Kajiado - 1,117,840

Kericho - 901,777

Bomet - 875,689

Vihiga - 590,013

Busia - 893,681

Siaya - 993,183

Kisumu - 1,155,574

Homa Bay - 1,131,950

Migori - 1,116,436

Kisii - 1,266,860

Nyamira - 605,576

Video courtesy of Citizen TV