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List Of All Largest counties in Kenya by size and population 2024.

Joseph Wenani
10 Min Read

Are you looking to know the largest Counties In Kenya By Size and Population in 2024? Well, search no more. This article presents everything you need to know about all 47 counties in Kenya, arranged by size (area KM) and population.

Do you know all the 47 counties in Kenya? Yes, the question may sound vague, but still, surprisingly, quite a few Kenyans born and raised don’t know about all the counties in Kenya. I have been fortunate enough to travel across all the Counties in Kenya, and I have no problem mentioning all these countries in the blink of an eye, but can you? 

Here is another Catch: Do you know how this county was formed? The 47 counties in Kenya were formed as geographical units of devolved government by the 2010 Constitution of Kenya. These counties replaced the previous provincial system and were established after the general elections in March 2013. This article will look at Kenya’s largest counties by landmass. With a total of 47 counties, each varying in Size, shape, and offering, it’s a wonder how these counties contribute towards Kenya’s economic Transformation. So, which is the Largest County In Kenya by Size and Population

Let us get started

Top 47 Counties In Kenya Size- Arranged From Largest To Smallest

With its diverse geographical landscape, Kenya hosts some of the largest counties in Africa, each with unique characteristics, opportunities, and challenges. Below Is A list of the 47 Largest Counties In Kenya arranged by Size:

S/NoCounty CodeCountyArea (km²)CapitalPostal Abbreviation
1023Turkana98,597.8LodwarTRK
2010Marsabit66,923.1MarsabitMRS
3008Wajir55,840.6WajirWJR
4007Garissa45,720.2GarissaGRS
5004Tana River35,375.8HolaTRV
6009Mandera25,797.7ManderaMDR
7011Isiolo25,336.1IsioloISL
8015Kitui24,385.1KituiKTU
9025Samburu20,182.5MaralalSBR
10034Kajiado21,292.7KajiadoKJD
11033Narok17,921.2NarokNRK
12006Taita-Taveta17,083.9WundanyiTVT
13005Lamu6,497.7LamuLMU
14031Laikipia8,696.1RumurutiLKP
15024West Pokot8,418.2KapenguriaWPK
16002Kwale8,270.3KwaleKWL
17017Makueni8,008.9WoteMKN
18030Baringo11,075.3KabarnetBRG
19003Kilifi12,245.9KilifiKLF
20032Nakuru7,509.5NakuruNKR
21012Meru7,003.1MeruMRU
22016Machakos5,952.9MachakosMCK
23027Uasin Gishu2,955.3EldoretUGS
24028Elgeyo-Marakwet3,049.7ItenEMK
25029Nandi2,884.5KapsabetNDI
26018Nyandarua3,107.7Ol KalouNDR
27026Trans-Nzoia2,469.9KitaleTNZ
28037Kakamega3,033.8KakamegaKKG
29013Tharaka-Nithi2,609.5KathwanaTNT
30014Embu2,555.9EmbuEMB
31039Bungoma2,206.9BungomaBGM
32019Nyeri2,361.0NyeriNYR
33043Homa Bay3,154.7Homa BayHBY
34044Migori2,586.4MigoriMGR
35041Siaya2,496.1SiayaSYA
36042Kisumu2,009.5KisumuKSM
37022Kiambu2,449.2KiambuKMB
38021Murang’a2,325.8Murang’aMRG
39040Busia1,628.4BusiaBSA
40020Kirinyaga1,205.4KerugoyaKRG
41035Kericho2,454.5KerichoKRC
42036Bomet1,997.9BometBMT
43045Kisii1,317.9KisiiKSI
44038Vihiga531.3MbaleVHG
45046Nyamira912.5NyamiraNMR
46001Mombasa212.5MombasaMSA
47047Nairobi694.9NairobiNBI

Top 47 Counties In Kenya by Population – Arranged From Largest To Smallest

Kenya’s population is determined by the Kenya Population and Housing Census (KPHC), which I usually do after 10 years. The last census took place from the night of 24th/25th to 31st August 2019 and was the first paperless census in Kenya. The total population was 47,564,296, with 23,548,056 males, 24,014,716 females, and 1,524 intersex individuals. The population grew to 47.6 million in 2019 from 37.7 million in 2009, with an intercensal growth rate of 2.2% in 2019. 

Which county is most populated in Kenya? According to the 2019 Census, Nairobi County emerged as the most populous region in Kenya, with a population of 4.3 million residents. Following Nairobi County, Kiambu County was estimated to have 2.4 million residents, and Nakuru County had 2.1 million. To help you get the full picture, below is a full table of all the 47 most populated Counties:

S/NoCounty CodeCountyPopulation (2019 Census)CapitalPostal Abbreviation
1047Nairobi4,397,073NairobiNBI
2022Kiambu2,417,735KiambuKMB
3032Nakuru2,162,202NakuruNKR
4037Kakamega1,867,579KakamegaKKG
5039Bungoma1,670,570BungomaBGM
6003Kilifi1,453,787KilifiKLF
7016Machakos1,421,932MachakosMCK
8023Turkana1,504,976LodwarTRK
9012Meru1,545,714MeruMRU
10045Kisii1,266,860KisiiKSI
11033Narok1,157,873NarokNRK
12042Kisumu1,155,574KisumuKSM
13043Homa Bay1,131,950Homa BayHBY
14044Migori1,116,436MigoriMGR
15034Kajiado1,117,640KajiadoKJD
16015Kitui1,136,187KituiKTU
17027Uasin Gishu1,163,186EldoretUGS
18026Trans-Nzoia990,341KitaleTNZ
19040Busia893,681BusiaBSA
20009Mandera867,457ManderaMDR
21041Siaya993,183SiayaSYA
22035Kericho901,777KerichoKRC
23036Bomet875,689BometBMT
24029Nandi885,711KapsabetNDI
25017Makueni987,653WoteMKN
26007Garissa841,353GarissaGRS
27008Wajir781,263WajirWJR
28019Nyeri759,164NyeriNYR
29014Embu608,599EmbuEMB
30021Murang’a1,056,640Murang’aMRG
31024West Pokot621,241KapenguriaWPK
32046Nyamira605,576NyamiraNMR
33020Kirinyaga610,411KerugoyaKRG
34018Nyandarua638,289Ol KalouNDR
35038Vihiga590,013MbaleVHG
36013Tharaka-Nithi393,177KathwanaTNT
37030Baringo666,763KabarnetBRG
38028Elgeyo-Marakwet454,480ItenEMK
39006Taita-Taveta340,671WundanyiTVT
40011Isiolo268,002IsioloISL
41031Laikipia518,560RumurutiLKP
42010Marsabit459,785MarsabitMRS
43002Kwale866,820KwaleKWL
44004Tana River315,943HolaTRV
45025Samburu310,327MaralalSBR
46005Lamu143,920LamuLMU
47001Mombasa1,208,333MombasaMSA

Which is the smallest county in Kenya?

The smallest county in Kenya is Mombasa County, covering an area of 229.7 km2, excluding 65 km2 of water mass. It is situated in the southeastern part of the former Coast Province. It is the smallest county in Kenya by Size.

Which county has the largest population in Kenya?

According to the last census, the county with the largest population in Kenya is Nairobi County, with a population of 4,397,073.

Is Nakuru bigger than Kisumu?

Yes, Nakuru is bigger than Kisumu in terms of population. Nakuru has a population of 2,162,202, while Kisumu has a population of 1,155,574. Therefore, Nakuru has a larger population than Kisumu in Kenya.

Which are the poorest counties in Kenya?

The poorest counties in Kenya have a 60-100% poverty rate, all in arid and semi-arid lands (ASAL). According to the Kenya Poverty Assessment 2023 Infographic, they include:

  1. Turkana
  2. West Pokot
  3. Samburu
  4. Marsabit
  5. Wajir
  6. Mandera
  7. Garissa
  8. Tana River

Which is the cleanest town in Kenya?

The cleanest town in Kenya is Kisumu City.

Which are the wealthiest counties in Kenya?

  1. Nairobi – Ksh 3.38 Trillion.
  2. Kiambu – Ksh 721.2 Billion.
  3. Nakuru – Ksh 600.5 Billion.
  4. Mombasa – Ksh 564.1 Billion.
  5. Meru – Ksh 407.4 Billion.
  6. Machakos – Ksh 378.4 Billion.
  7. Kisumu – Ksh 312.6 Billion.
  8. Uasin Gishu – Ksh 295.7 Billion.

Conclusion

In this article, we have seen all the Largest to most minor Counties in terms of Population and Size. Therefore, as we come to an end, one thing is clear: Their largeness contains much more than just geographical Size. Each County in Kenya offers something unique that contributes to the Overall stability of the nation. Moving forward, the path to sustainable development in these countries requires a concerted effort from all stakeholders. In doing so, Kenya can ensure that its largest counties are not seen merely as spaces on a map but as vibrant, dynamic regions that contribute significantly to the nation’s socio-economic development and cultural heritage. 

If you have any questions that require our attention, ask below, and we will get back to you as soon as possible.

All the best

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