The 47 Counties in Kenya, Population, Size, Postal Codes

• By Clinton Wanjala

• 2240

• Last updated Sep 20, 2025

Kenya is made up of 47 counties, each identified by its own official code.

These counties were established under the 2010 Constitution, replacing the former districts to create a more decentralized system of governance. They now act as the main administrative and local government units across the country.

In this guide, you’ll find a detailed overview of all 47 counties, their county codes, size, population figures, and postal addresses. 

The information on this page is to help you understand how Kenya is organized regionally.

List of Kenyan Counties with their Postal Codes

County 01 Mombasa County Postal Codes

• 8 0100 – Mombasa
• 8 0101 – Bamburi
• 8 0102 – Changamwe
• 8 0103 – Coast Gen. Hospital
• 8 0104 – Docks
• 8 0106 – Mkomani
• 8 0107 – Kilindini
• 8 0110 – Likoni
• 8 0111 – Mtongwe
• 8 0112 – Makupa
• 8 0115 – Moi Airport
• 8 0117 – Mtopanga
• 8 0118 – Nyali
• 8 0122 – Kengeleni
• 8 0123 – Kanamai

Related article: Understanding the Court System in Kenya: Everything You Need to Know

County 02 Kwale County

• 8 0120 – Samburu
• 8 0400 – Ukunda
• 8 0401 – Diani Beach
• 8 0402 – Lunga Lunga
• 8 0403 – Kwale
• 8 0404 – Msambweni
• 8 0405 – Kinango
• 8 0406 – Matuga
• 8 0407 – Shimba Hills
• 8 0409 – Shimoni
• 8 0410 – Kikoneni

County 03 Kilifi County Postal Codes

• 8 0105 – Kaloleni
• 8 0108 – Kilifi
• 8 0109 – Mtwapa
• 8 0113 – Mariakani
• 8 0114 – Mazeras
• 8 0119 – Vipingo
• 8 0200 – Malindi
• 8 0202 – Watamu
• 8 0205 – Ganze
• 8 0206 – Gongoni
• 8 0207 – Madina
• 8 0208 – Gede
• 8 0209 – Kakoneni
• 8 0210 – Bamba
• 8 0211 – Vitengeni
• 8 0212 – Ngomeni
• 8 0213 – Mambrui

#04 Tana River County Postal Codes

• 8 0201 – Garsen
• 8 0203 – Tarasaa
• #05 Lamu County Postal Codes
• 8 0500 – Lamu
• 8 0501 – Faza
• 8 0502 – Mokowe
• 8 0503 – Mpeketoni
• 8 0504 – Witu

#06 Taita Taveta County Postal Codes

• 4 0509 – Manga
• 5 0219 – Luandanyi
• 8 0300 – Voi
• 8 0301 – Manyani
• 8 0302 – Taveta
• 8 0303 – Werugha
• 8 0304 – Wundanyi
• 8 0305 – Mwatate
• 8 0306 – Mgange
• 8 0307 – Kasigau
• 8 0308 – Sagalla
• 8 0309 – Tausa
• 8 0311 – Ng’Ambwa
• 8 0313 – Mgambonyi
• 8 0314 – Chumvini
• 8 0315 – Maktau
• 8 0317 – Maungu

#07 Garisa County Postal Codes

• 7 0100 – Garissa
• 7 0101 – Hola
• 7 0102 – Modo Gashe
• 7 0103 – Dadaab
• 7 0104 – Bura Tana
• 7 0105 – Masalani

#08 Wajir County Postal Codes

• 7 0200 – Wajir
• 7 0201 – Habaswein
• #09 Mandera County Postal Codes
• 7 0300 – Mandera
• 7 0301 – Elwak

#10 Marsabit County Postal Codes

• 6 0500 – Marsabit
• 6 0501 – Loiyangalani
• 6 0502 – Laisamis
• 6 0700 – Moyale
• 6 0701 – Sololo 

#11 Isiolo County Postal Codes

• 6 0300 – Isiolo
• 6 0301 – Garba Tulla
• 6 0302 – Archers Post
• 6 0303 – Merti

#12 Meru County Zip Code

• 0 0903 – Githiga
• 0 1017 – Kiriua
• 6 0201 – Kibirichia
• 6 0205 – Githongo

#13 Tharaka Nithi County Zip Code

• 1 0115 – Gathunga
• 6 0213 – Tunyai
• 6 0214 – Nkondi
• 6 0215 – Marimanti
• 6 0400 – Chuka
• 6 0401 – Chogoria
• 6 0402 – Igoji
• 6 0403 – Magumoni
• 6 0404 – Gatunga
• 6 0405 – Ikuu
• 6 0406 – Kathwana
• 6 0407 – Magutuni
• 6 0408 – Marima
• 6 0409 – Chiakariga
• 6 0410 – Chiakanyinga
• 6 0411 – Huduma Chuka
• 6 0411 – Kaanwa

#14 Embu County Postal Codes

• 0 1031 – Kindaruma
• 6 0100 – Embu
• 6 0101 – Manyatta
• 6 0102 – Ishiara
• 6 0103 – Runyenjes
• 6 0104 – Siakago
• 6 0105 – Karaba
• 6 0106 – Kanyuambora
• 6 0107 – Karingari
• 6 0108 – Kevote
• 6 0109 – Kiambere
• 6 0112 – Kibugu
• 6 0113 – Kiritiri
• 6 0114 – Kithimu
• 6 0115 – Nganduri
• 6 0117 – Karurumo
• 6 0118 – Kanja
• 6 0119 – Gachoka
• 6 0121 – Wachoro
• 6 0122 – Kianjokoma
• 6 0125 – Kubu Kubu
• 9 0141 – Masinga
• 9 0209 – Kyeni

#15 Kitui County Postal Codes

• 9 0200 – Kitui
• 9 0202 – Ndooa
• 9 0203 – Tulia
• 9 0204 – Kisasi
• 9 0205 – Kabati
• 9 0206 – Endau
• 9 0210 – Matinyani
• 9 0211 – Mutha
• 9 0212 – Voo
• 9 0213 – Zombe
• 9 0214 – Mbitini
• 9 0215 – Kwavonza
• 9 0217 – Katutu
• 9 0218 – Kiusyani
• 9 0219 – Chuluni
• 9 0403 – Kamuwongo
• 9 0404 – Katse
• 9 0408 – Nuu

#16 Machakos County Postal Codes

• 0 0204 – Athi River
• 0 0519 – Mlolongo
• 9 0100 – Machakos
• 9 0101 – Masii
• 9 0104 – Mitaboni
• 9 0105 – Kathiani
• 9 0106 – Katangi
• 9 0107 – Kaviani
• 9 0109 – Lita
• 9 0111 – Kivunga
• 9 0114 – Muumandu
• 9 0117 – Mutituni
• 9 0118 – Ndalani
• 9 0119 – Matuu
• 9 0120 – Iiani
• 9 0139 – Ekalakala
• 9 0145 – Daystar
• 9 0147 – Chumvi
• 9 0150 – Kaewa

#17 Makueni County Postal Codes

• 9 0108 – Kola
• 9 0112 – Miu
• 9 0122 – Kalamba
• 9 0123 – Kasikeu
• 9 0124 – Kithimani
• 9 0125 – Kikima
• 9 0126 – Kalawa
• 9 0127 – Mbumbuni
• 9 0133 – Tawa
• 9 0135 – Ikalaasa
• 9 0143 – Nziu
• 9 0300 – Makueni
• 9 0301 – Okia
• 9 0302 – Kathonzweni
• 9 0303 – Kitise
• 9 0304 – Mavindini
• 9 0305 – Kilala

#18 Nyandarua County Postal Codes

• 2 0301 – Miharati
• 2 0302 – Oljoro-Orok
• 2 0303 – Ol-Kalou
• 2 0304 – Kaheho
• 2 0305 – Wanjohi
• 2 0306 – Ndaragwa
• 2 0307 – Igwamiti
• 2 0308 – Ngano
• 2 0309 – Kanyaagia
• 2 0310 – Leshau
• 2 0311 – Passenga
• 2 0313 – Rurii
• 2 0315 – Mukeu
• 2 0316 – Murungaru
• 2 0317 – Ndunyu Njeru
• 2 0318 – North-Kinangop
• 2 0319 – South-Kinangop

#19 Nyeri County Postal Codes

• 1 0100 – Nyeri
• 1 0101 – Karatina
• 1 0102 – Kiganjo
• 1 0103 – Mukurweini
• 1 0104 – Mweiga
• 1 0106 – Othaya
• 1 0107 – Endarasha
• 1 0108 – Giakanja
• 1 0109 – Gakere Road
• 1 0111 – Gakindu
• 1 0114 – Gatitu
• 1 0122 – Kiamariga
• 1 0123 – Kiandu
• 1 0125 – Kimahuri
• 1 0129 – Mugunda
• 1 0130 – Munyu
• 1 0133 – Ruringu
• 1 0136 – Tumu-Tumu
• 1 0140 – Kimathi Way
• 1 0141 – Kamakwa Rd
• 1 0142 – Kamakwa Rd Huduma
• 1 0143 – Dedan Kimathi
• 1 0144 – Karatina University
• 1 0305 – Gatugura

Also read: Media and Human Rights in Kenya: Balancing Free Expression with Ethical Duty

#20 Kirinyaga County Postal Codes 

• 1 0230 – Sagana
• 1 0300 – Kerugoya
• 1 0301 – Kirinyaga
• 1 0302 – Baricho
• 1 0303 – Wanguru
• 1 0304 – Kutus
• 1 0306 – Kagio
• 1 0307 – Kagumo
• 1 0309 – Kiamutugu
• 1 0310 – Kimbimbi
• 1 0311 – Huduma Kerugoya
• 1 0312 – Kimunye
• 6 0120 – Mururi

#21 Muranga County Postal Codes

• 0 1014 – Kakuzi
• 0 1020 – Kenol
• 0 1023 – Mukerenju
• 0 1024 – Muruka
• 0 1032 – Githumu
• 0 1033 – Kagundu-Ini
• 0 1034 – Kandara
• 1 0200 – Muranga
• 1 0201 – Kahuro
• 1 0202 – Kangema
• 1 0203 – Kigumo
• 1 0204 – Kiriaini
• 1 0205 – Maragua
• 1 0206 – Kahuhia
• 1 0207 – Kihoya
• 1 0208 – Saba-Saba
• 1 0209 – Gitugi
• 1 0210 – Gacharage-Ini
• 1 0212 – Gatara
• 1 0213 – Gikoe
• 1 0214 – Kahuti
• 1 0215 – Kairo
• 1 0217 – Kamahuha
• 1 0218 – Kangari
• 1 0220 – Kanyenyaini
• 1 0226 – Kambiti
• 1 0227 – Ichichi
• 1 0231 – Kariua
• 1 0232 – Gakungu
• 1 0233 – Mbiri
• 1 0235 – Huduma Muranga
• 1 0244 – Kora

#22 Kiambu County Postal Codes

• 0 0216 – Githunguri
• 0 0217 – Limuru
• 0 0218 – Ngecha
• 0 0219 – Karuri
• 0 0220 – Kijabe
• 0 0221 – Matathia
• 0 0222 – Uplands
• 0 0223 – Kagwe
• 0 0227 – Kinari
• 0 0228 – Muguga
• 0 0229 – Nderu
• 0 0230 – Ndenderu
• 0 0232 – Ruiru
• 0 0239 – Gathiru-Ini
• 0 0240 – Gathugu / Gathungu
• 0 0607 – Kamiti
• 0 0609 – Kenyatta University
• 0 0614 – Wangige
• 0 0626 – Githurai
• 0 0900 – Kiambu
• 0 0901 – Ngewa
• 0 0902 – Kikuyu
• 0 0904 – Ikinu
• 0 0906 – Kerwa
• 0 1000 – Thika
• 0 1001 – Kalimoni
• 0 1002 – Madaraka
• 0 1003 – Gituamba
• 0 1004 – Kanjuku
• 0 1010 – Wamwangi
• 0 1011 – Kanyoni
• 0 1013 – Gatura
• 0 1015 – Ithanga
• 0 1016 – Ndithini
• 0 1018 – Kirwara
• 0 1028 – Gatukuyu
• 0 1030 – Gatundu

#23 Turkana County Postal Codes

• 3 0410 – Kapedo
• 3 0500 – Lodwar
• 3 0501 – Kakuma
• 3 0502 – Kalokol
• 3 0503 – Lokichoggio
• 3 0504 – Lokitaung
• 3 0505 – Huduma Lodwar
• 3 0506 – Lokori 

#24 West Pokot County Postal Codes

• 3 0600 – Kapenguria
• 3 0601 – Kacheliba
• 3 0602 – Ortum
• 3 0603 – Wei-Wei
• 3 0604 – Kainuk
• 3 0605 – Chepareria

#25 Samburu County Postal Codes

• 2 0600 – Maralal
• 2 0601 – Baragoi
• 2 0603 – Wamba
• 2 0604 – South Horr 

#26 Trans Nzoia County Postal Codes

• 3 0200 – Kitale
• 3 0201 – Endebess
• 3 0203 – Kipsaina
• 3 0206 – Chemiron
• 3 0208 – Kapsara
• 3 0209 – Kiminini
• 3 0210 – Kwanza
• 3 0211 – Saboti
• 3 0212 – Suwerwa
• 3 0213 – Sirende
• 3 0215 – Kesogon
• 4 0619 – Asembo Bay

#27 Uasin Gishu County Postal Codes

• 3 0100 – Eldoret
• 3 0101 – Ainabkoi
• 3 0102 – Burnt Forest
• 3 0103 – Kipkabus
• 3 0104 – Moiben
• 3 0105 – Soy
• 3 0106 – Turbo
• 3 0107 – Moi University
• 3 0108 – Timboroa
• 3 0109 – Huruma
• 3 0110 – Kihuga Square
• 3 0111 – Kapngetuny
• 3 0112 – Langas
• 3 0113 – Kamwosor
• 3 0114 – Kaptagat
• 3 0116 – Plateau
• 3 0117 – Kiplegetet
• 3 0118 – Kiptabach
• 3 0120 – Kimoning
• 3 0121 – Chepterwai
• 3 0123 – Ndalat
• 3 0124 – Eldoret Airport
• 3 0125 – Chebororwa
• 3 0131 – Nyaru
• 3 0133 – Chepkoilel
• 3 0134 – Zion Mall
• 3 0202 – Moi’S Bridge
• 3 0205 – Matunda
• 3 0214 – Ziwa
• 3 0217 – Sikinwa
• 3 0412 – Barwesa
• 3 0711 – Kapteren
• 30135 – Waunifor

#28 Elgeyo/Marakwet  County Postal Codes

• 30705 – Kapsumai
• 30705 – Kipsaiya
• 30705 – Kobuswa
• 30705 – Sangurur
• 30705 – Sisiya

#29 Nandi County Postal Codes

• 3 0132 – Kesses
• 3 0300 – Kapsabet
• 3 0301 – Nandi Hills
• 3 0302 – Lessos
• 3 0303 – Kabiyet
• 3 0304 – Kapcheno
• 3 0305 – Kobujoi
• 3 0306 – Baraton
• 3 0307 – Mosoriot
• 3 0309 – Chepsonoi
• 3 0311 – Kapchorwa
• 3 0313 – Kapsumbeiwa
• 3 0314 – Koilot
• 3 0315 – Kilibwoni
• 4 0143 – Chemase

#30 Baringo County Postal Codes

• 2 0103 – Eldama Ravine
• 2 0105 – Mogotio
• 2 0144 – Kisanana
• 2 0145 – Maji Mazuri
• 2 0153 – Torongo
• 3 0119 – Kapkenda
• 3 0400 – Kabarnet
• 3 0401 – Kabartonjo
• 3 0402 – Kiptagich
• 3 0403 – Marigat
• 3 0404 – Nginyang
• 3 0405 – Tenges
• 3 0406 – Kampi-Ya-Samaki
• 3 0407 – Seretunin
• 3 0408 – Bartolimo
• 3 0411 – Kipsaraman
• 3 0411 – Kisarama
• 3 0413 – Huduma Kabarnet

#31 Laikipia County Postal Codes

• 1 0105 – Naro Moru
• 1 0400 – Nanyuki
• 1 0401 – Doldol
• 1 0406 – Timau
• 1 0407 – Huduma Nanyuki
• 2 0300 – Nyahururu
• 2 0312 – Mochogoini
• 2 0314 – Mairo Inya
• 2 0320 – Kinamba
• 2 0321 – Rumuruti
• 2 0322 – Marmanet
• 2 0323 – Muhotetu
• 2 0324 – Ngelesha
• 2 0326 – Sipili
• 2 0328 – Karandi
• 2 0329 – Wiyumiririe
• 2 0330 – Laikipia Campus

#32 Nakuru County Postal Codes

• 0 0242 – Ewaso Kedong
• 2 0100 – Nakuru
• 2 0101 – Bondeni
• 2 0102 – Elburgon
• 2 0104 – Menengai
• 2 0106 – Molo
• 2 0107 – Njoro
• 2 0108 – Rongai
• 2 0109 – Subukia
• 2 0110 – Timber Mills
• 2 0111 – Mau Narok
• 2 0112 – Lanet
• 2 0113 – Bahati
• 2 0114 – Kabazi
• 2 0115 – Egerton
• 2 0116 – Gilgil
• 2 0117 – Naivasha
• 2 0118 – Dundori
• 2 0119 – Elementaita
• 2 0120 – Kabatini
• 2 0121 – Kampi Ya Moto
• 2 0122 – Mau Summit
• 2 0123 – Milton Siding
• 2 0124 – Mirangine
• 2 0126 – Ngorika
• 2 0127 – Ronda
• 2 0128 – Solai
• 2 0129 – Turi
• 2 0130 – Kirobon
• 2 0131 – Keringet
• 2 0131 – Kirengeti
• 2 0132 – Kamwaura
• 2 0133 – Kiptangwanyi
• 2 0134 – Kamara
• 2 0135 – Kirisoi
• 2 0136 – Koige
• 2 0142 – Naishi
• 2 0146 – Longonot
• 2 0147 – Maai Mahiu
• 2 0148 – Maiella
• 2 0149 – Makumbi
• 2 0150 – Shabaab
• 2 0152 – Olenguruone
• 2 0154 – Kuresoi
• 2 0157 – Kabarak
• 4 0142 – Victoria
• 5 0237 – Nzoia
• 5 0238 – Tabani

#33 Narok County Postal Codes

• 2 0420 – Sogoo
• 2 0500 – Narok
• 2 0501 – Keekorok
• 2 0502 – Olkurto
• 2 0503 – Ololulunga
• 2 0504 – Nairage Enkare
• 4 0700 – Kilgoris
• 4 0701 – Lolgorian
• 4 0702 – Njipiship
• 4 0703 – Enosaen
• 9 0116 – Kivaani
• 9 0148 – Kiunduani

#34 Kajiado County Postal Codes

• 0 0205 – Magadi
• 0 0206 – Kiserian
• 0 0207 – Namanga
• 0 0208 – Ngong Hills
• 0 0209 – Loitokitok
• 0 0210 – Thigio
• 0 0213 – Oltepesi
• 0 0214 – Ilasit
• 0 0215 – Kimana
• 0 0241 – Kitengela
• 0 0511 – Ongata Rongai
• 0 1100 – Kajiado
• 0 1101 – Bissel
• 0 1103 – Mashuru
• 0 1105 – Kajiado West

#35 Kericho County Postal Codes

• 2 0200 – Kericho
• 2 0201 – Kabianga
• 2 0202 – Kipkelion
• 2 0203 – Londiani
• 2 0204 – Roret
• 2 0205 – Sosiot
• 2 0206 – Kapkugerwet
• 2 0207 – Kapsuser
• 2 0208 – Kiptugumo
• 2 0209 – Fort Ternan
• 2 0210 – Litein
• 2 0211 – Kapsoit
• 2 0212 – Sigowet
• 2 0213 – Kiptere
• 2 0214 – Kapkatet
• 2 0215 – Cheborge
• 2 0216 – Chepkemel
• 2 0217 – Chesinendet
• 2 0218 – Kamaget
• 2 0219 – Kapkelek
• 2 0220 – Kedowa
• 2 0222 – Chemamul
• 2 0223 – Sorget
• 2 0225 – Kimulot
• 2 0226 – Huduma Kericho
• 2 0403 – Mogogosiek

#36 Bomet County Postal Codes

• 2 0221 – Kaptebengwet
• 2 0400 – Bomet
• 2 0401 – Chebunyo
• 2 0402 – Longisa
• 2 0404 – Ndanai
• 2 0405 – Sigor
• 2 0406 – Sotik
• 2 0407 – Chemaner
• 2 0409 – Boito
• 2 0410 – Cheptalal
• 2 0411 – Gorgor
• 2 0412 – Kabason
• 2 0413 – Kapcherany
• 2 0414 – Kapkesosio
• 2 0415 – Kapkoros
• 2 0416 – Kiplelji
• 2 0417 – Koiwa
• 2 0418 – Makimeny
• 2 0419 – Merigi
• 2 0421 – Olbutyo
• 2 0422 – Silibwet
• 2 0423 – Siongiroi
• 2 0424 – Amalo (Formerly Oloomirani)
•  2 0424 – Oloomirani
• 2 0426 – Ndaraweta

#37 Kakamega County Postal codes

• 2 0143 – Sabatia
• 4 0621 – Dudi
• 5 0100 – Kakamega
• 5 0101 – Butere
• 5 0102 – Mumias
• 5 0103 – Malava
• 5 0104 – Khayega
• 5 0105 – Bukura
• 5 0106 – Shianda
• 5 0107 – Shinyalu
• 5 0108 – Lugari
• 5 0109 – Bulimbo
• 5 0111 – Ileho
• 5 0112 – Imanga
• 5 0114 – Isulu
• 5 0115 – Kakunga
• 5 0116 – Kambiri
• 5 0117 – Koyonzo
• 5 0118 – Lubao
• 5 0119 – Lunza
• 5 0121 – Lutasa
• 5 0122 – Malaha
• 5 0123 – Malinya
• 5 0124 – Mautuma
• 5 0125 – Musanda
• 5 0126 – Manyulia
• 5 0127 – Nambacha
• 5 0128 – Samitsi
• 5 0132 – Lukume
• 5 0133 – Makunga
• 5 0135 – Khwisero
• 5 0136 – Matete
• 5 0137 – Booker
• 5 0138 – Milimani
• 5 0239 – Nangili
• 5 0240 – Luandeti
• 5 0241 – Kipkarren River
• 5 0242 – Lumakanda
• 5 0316 – Banja
• 5 0319 – Jebrok
• 5 0320 – Lusiola
• 5 0321 – Magada
• 5 0322 – Mahanga
• 5 0324 – Masana
• 5 0325 – Mago

#38 Vihiga County Postal Code

• 5 0300 – Maragoli
• 5 0302 – Chamakanga
• 5 0303 – Eregi
• 5 0304 – Gisambai
• 5 0305 – Kaimosi
• 5 0306 – Khumusalaba
• 5 0307 – Luanda
• 5 0308 – Serem
• 5 0309 – Tiriki
• 5 0310 – Vihiga
• 5 0311 – Wodanga
• 5 0312 – Hamisi
• 5 0313 – Kiritu
• 5 0314 – Emuhaya
• 5 0315 – Kilingili
• 5 0317 – Chavakali
• 5 0318 – Gambogi
• 5 0428 – Muluanda

#39 Bungoma County Zip Codes

• 3 0218 – Tongaren
• 5 0139 – Masinde Muliro University
• 5 0200 – Bungoma
• 5 0201 – Cheptais
• 5 0202 – Chwele
• 5 0203 – Kapsokwony
• 5 0204 – Kimilili
• 5 0205 – Webuye
• 5 0206 – Bokoli
• 5 0207 – Misikhu
• 5 0208 – Sirisia
• 5 0209 – Malakisi
• 5 0210 – Buyofu
• 5 0211 – Naitiri
• 5 0212 – Ndalu
• 5 0213 – Dorofu
• 5 0214 – Kabula
• 5 0216 – Kamukuywa
• 5 0218 – Lugulu
• 5 0220 – Lwakhakha
• 5 0225 – Mukhe
• 5 0226 – Myanga
• 5 0230 – Lukusi
• 5 0233 – Bukembe
• 5 0234 – Kaptama
• 5 0235 – Mabusi
• 5 0236 – Mbakalo
• 5 0245 – Brigadier
• 5 0429 – Elugulu

#40 Busia County Postal Codes

• 5 0244 – Amagoro
• 5 0400 – Busia
• 5 0401 – Sio Port
• 5 0403 – Amukura
• 5 0404 – Bumala
• 5 0405 – Butula
• 5 0406 – Funyula
• 5 0408 – Kamuriai
• 5 0409 – Nambale
• 5 0410 – Port Victoria
• 5 0411 – Bar Ober
• 5 0412 – Angurai
• 5 0413 – Adungosi
• 5 0416 – Buhuyi
• 5 0417 – Bukiri
• 5 0418 – Bumutiru
• 5 0421 – Lukolis
• 5 0422 – Matayos
• 5 0423 – Mubwayo
• 5 0425 – Mungatsi
• 5 0426 – Murumba

#41 Siaya County Postal Codes

• 4 0139 – Akala
• 4 0140 – Aluor
• 4 0142 – Ramula
• 4 0330 – Ramba
• 4 0600 – Siaya
• 4 0601 – Bondo
• 4 0602 – Ndori
• 4 0603 – Ng’Iya
• 4 0604 – Ragengni
• 4 0605 – Sidindi
• 4 0606 – Ugunja
• 4 0607 – Ukwala
• 4 0608 – Uranga
• 4 0609 – Usenge
• 4 0610 – Yala
• 4 0611 – Nyilima
• 4 0612 – Sawagongo
• 4 0613 – Madiany
• 4 0614 – Sega
• 4 0615 – Nango
• 4 0616 – Anyiko
• 4 0620 – Boro
• 4 0623 – Lugingo
• 4 0623 – Luhano
• 4 0625 – Manyuanda
• 4 0626 – Misori
• 4 0628 – Mutumbu
• 4 0630 – Ndigwa
• 4 0631 – Nyadorera
• 4 0632 – Nyamonye
• 4 0633 – Nyawara
• 4 0635 – Sigomre
• 4 0640 – Hawinga
• 4 0645 – Tingwangi

#42 Kisumu County Postal Codes

• 1 0311 – Kibigoti
• 4 0100 – Kisumu
• 4 0101 – Ahero
• 4 0102 – Kombewa
• 4 0103 – Kondele
• 4 0104 – Koru
• 4 0104 – Koru
• 4 0105 – Maseno
• 4 0106 – Miwani
• 4 0107 – Muhoroni
• 4 0108 – Otonglo
• 4 0109 – Sondu
• 4 0110 – Songhor
• 4 0111 – Pap-Onditi
• 4 0112 – Dago
• 4 0113 – Pembe Tatu
• 4 0116 – Chemelil
• 4 0117 – Daraja Mbili
• 4 0118 – Katito
• 4 0119 – Kibigori
• 4 0121 – Kondik
• 4 0122 – Awasi
• 4 0123 – Mega City
• 4 0124 – Nyabondo
• 4 0126 – Nyangande
• 4 0127 – Nyangori
• 4 0129 – Oboch
• 4 0131 – Paw Akuche
• 4 0132 – Rabuor
• 4 0133 – Reru
• 4 0135 – Sigoti
• 4 0137 – Ratta
• 4 0141 – Winam (Kisumu Gpo Extn.)
• 4 0325 – Rakwaro

#43 Homa Bay County Postal Codes

• 4 0222 – Oyugis
• 4 0223 – Kadongo
• 4 0227 – Oriang
• 4 0300 – Homa Bay
• 4 0301 – Kendu Bay
• 4 0302 – Ndhiwa
• 4 0303 – Rangwe
• 4 0304 – Kandiege
• 4 0305 – Mbita
• 4 0306 – Ombonga
• 4 0307 – Magunga
• 4 0308 – Sindo
• 4 0309 – Asumbi
• 4 0310 – Mawego
• 4 0311 – Nyangweso
• 4 0317 – Kojwang
• 4 0319 – Mfangano
• 4 0320 – Mirogi
• 4 0323 – Ogongo
• 4 0326 – Rodi Kopany
• 4 0328 – Awach Tende
• 4 0329 – Pala
• 4 0329 – Rusinga
• 4 0332 – Kosele
• 4 0333 – Nyandhiwa
• 4 0334 – Oyani-Masi
• 4 0335 – Asego

44 Migori County Postal Codes

• 0 1102 – Isinya
• 4 0224 – Othoro
• 4 0228 – Uriri
• 4 0331 – Dede
• 4 0400 – Suna
• 4 0401 – Karungu
• 4 0402 – Nyatike
• 4 0403 – Rapogi
• 4 0404 – Rongo
• 4 0405 – Sare
• 4 0407 – Giribe
• 4 0409 – Muhuru Bay
• 4 0410 – Mukuro
• 4 0412 – Ranen
• 4 0413 – Kehancha
• 4 0414 – Isibania
• 4 0416 – Kegonga
• 4 0417 – Ntimaru
• 4 0418 – Suba-Kuria
• 4 0418 – Suba-Kuria
• 4 0419 – Migori
• 4 415 – Ikerege

#45 Kisii County Postal Codes

• 4 0200 – Kisii
• 4 0201 – Gesusu
• 4 0202 – Keroka
• 4 0203 – Nyamache
• 4 0204 – Ogembo
• 4 0205 – Nyambunwa
• 4 0206 – Nyamarambe
• 4 0208 – Etago
• 4 0209 – Igare
• 4 0210 – Itumbe
• 4 0211 – Kenyenya
• 4 0212 – Keumbu
• 4 0213 – Kiamokama
• 4 0214 – Marani
• 4 0215 – Masimba
• 4 0218 – Nyangusu
• 4 0220 – Riosiri
• 4 0229 – Tabaka
• 4 0514 – Nyaramba
• 4 0515 – Kegogi
• 4 0516 – Magena

#46 Nyamira County Postal Codes

• 4 0221 – Omogonchoro
• 4 0500 – Nyamira
• 4 0501 – Ikonge
• 4 0502 – Nyansiongo
• 4 0503 – Gesima
• 4 0506 – Kebirigo
• 4 0507 – Magombo
• 4 0508 – Magwagwa
• 4 0510 – Mokomoni
• 4 0511 – Rigoma
• 4 0512 – Riochanda
• 4 0513 – Tombe

County 47 Nairobi City Postal Codes

• 0 0100 – Nairobi Gpo
• 0 0101 – Jamia
• 0 0102 – State Law Office-Sheria HSE
• 0 0200 – City Square
• 0 0202 – Kenyatta Hospital
• 0 0231 – Mbari Ya Njiku
• 0 0233 – Karatu
• 0 0235 – Mundoro
• 0 0236 – Kiamwangi
• 0 0300 – Ronald Ngala Street
• 0 0400 – Tom Mboya Street
• 0 0500 – Enterprise Road
• 0 0501 – Jkia
• 0 0502 – Karen
• 0 0503 – Mbagathi
• 0 0504 – Mchumbi Road
• 0 0505 – Ngong Road
• 0 0506 – Nyayo Stadium
• 0 0507 – Viwandani
• 0 0508 – Yaya Towers
• 0 0509 – Langata Hardy
• 0 0510 – Makongeni
• 0 0512 – Riruta
• 0 0513 – Sasumua Rd
• 0 0515 – Buru Buru
• 0 0516 – Dandora
• 0 0517 – Uhuru Gardens
• 0 0518 – Kayole
• 0 0520 – Ruai
• 0 0521 – Embakasi Village
• 0 0522 – Makadara
• 0 0523 – Kibera
• 0 0600 – Ngara Road
• 0 0601 – Gigiri
• 0 0603 – Lavington
• 0 0604 – Lower Kabete
• 0 0605 – Uthiru
• 0 0606 – Sarit Centre
• 0 0610 – Eastleigh
• 0 0611 – Mathare Valley
• 0 0612 – Highridge
• 0 0613 – Waithaka
• 0 0615 – Kariobangi
• 0 0618 – Ruaraka
• 0 0619 – Muthaiga
• 0 0620 – Mobil Plaza
• 0 0621 – Village Market
• 0 0623 – Parklands
• 0 0625 – Kangemi
• 0 0627 – Two Rivers
• 0 0800 – Westlands
• 0 0905 – Lusingeti
• 0 1029 – Migioini
• 00622 – Juja Rd
• 1 0224 – Nguyoini
• 3 0216 – Kakibora
• 3 0703 – Singore
• 4 0312 – Gembe
• 4 0406 – Agenga
• 4 0411 – Othoch Rapwong
• 4 0505 – Karota
• 4 0629 – Mudhiero
• 4 0629 – Ndere
• 4 0634 – Rangala
• 4 0639 – Koracha
• 5 0301 – Bunyore
• 5 0407 – Hakati
• 5 0415 – Budalangi
• 5 0419 – Kakemer
• 5 0420 – Kocholya
• 6 0217 – Gatimbi
• 8 0312 – Mashini
• 8 0316 – Kitivo
• 8 0408 – Lukore
• 9 0149 – Nthogoini
• 9 0216 – Mulango
• 9 0405 – Kavuti
• 9 0406 – Mathuki

Table: Summary of Kenyan Counties with Codes, Size, Population & Postal Addresses