VotePulse 10 Aug 2027
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Kenya Elections · Electoral geography

Kenya's 47 counties, constituencies and wards

Kenya is divided into 47 counties, 290 constituencies and 1,450 county assembly wards. Each county elects a governor, senator and woman representative; each constituency elects a Member of Parliament; each ward elects a Member of County Assembly.

Updated By the VotePulse team

Kenya has 47 counties, 290 constituencies and 1,450 county assembly wards. Nairobi City has the most constituencies and wards (17 and 85); Lamu and Isiolo have the fewest wards (10).

The 47 counties are set out in the First Schedule to the Constitution. The number of constituencies is fixed at 290 by Article 89(1). The IEBC reviews constituency names and boundaries every eight to twelve years, and reviews wards periodically, so always check the IEBC for the current electoral units.

All 47 counties

Counties in IEBC code order. Polling stations and registered voters are from the IEBC's 2022 register of voters per polling station; the 2022 total also included 17,926 voters at diaspora and prison polling stations (22,120,458 overall).
Code County Former province Constituencies Wards Polling stations Registered voters
001 Mombasa Coast 6 30 1,041 641,913
002 Kwale Coast 4 20 742 328,253
003 Kilifi Coast 7 35 1,140 588,602
004 Tana River Coast 3 15 367 141,096
005 Lamu Coast 2 10 191 81,453
006 Taita Taveta Coast 4 20 394 181,827
007 Garissa North Eastern 6 30 558 201,473
008 Wajir North Eastern 6 30 609 207,758
009 Mandera North Eastern 6 30 553 217,030
010 Marsabit Eastern 4 20 446 166,912
011 Isiolo Eastern 2 10 218 89,504
012 Meru Eastern 9 45 1,639 772,139
013 Tharaka-Nithi Eastern 3 15 665 231,932
014 Embu Eastern 4 20 747 334,302
015 Kitui Eastern 8 40 1,578 532,758
016 Machakos Eastern 8 40 1,472 687,565
017 Makueni Eastern 6 30 1,129 479,401
018 Nyandarua Central 5 25 727 361,165
019 Nyeri Central 6 30 962 481,632
020 Kirinyaga Central 4 20 697 376,001
021 Murang'a Central 7 35 1,186 620,929
022 Kiambu Central 12 60 2,113 1,275,008
023 Turkana Rift Valley 6 30 785 238,528
024 West Pokot Rift Valley 4 20 857 220,026
025 Samburu Rift Valley 3 15 333 100,014
026 Trans Nzoia Rift Valley 5 25 757 398,981
027 Uasin Gishu Rift Valley 6 30 958 506,138
028 Elgeyo/Marakwet Rift Valley 4 20 554 213,884
029 Nandi Rift Valley 6 30 927 406,288
030 Baringo Rift Valley 6 30 1,029 281,053
031 Laikipia Rift Valley 3 15 561 263,012
032 Nakuru Rift Valley 11 55 2,050 1,054,856
033 Narok Rift Valley 6 30 883 398,784
034 Kajiado Rift Valley 5 25 890 463,273
035 Kericho Rift Valley 6 30 922 428,067
036 Bomet Rift Valley 5 25 853 376,985
037 Kakamega Western 12 60 1,682 844,551
038 Vihiga Western 5 25 627 310,043
039 Bungoma Western 9 45 1,373 646,598
040 Busia Western 7 35 856 416,756
041 Siaya Nyanza 6 30 1,035 533,595
042 Kisumu Nyanza 7 35 1,165 606,754
043 Homa Bay Nyanza 8 40 1,227 551,071
044 Migori Nyanza 8 40 1,014 469,019
045 Kisii Nyanza 9 45 1,298 637,010
046 Nyamira Nyanza 4 20 643 323,283
047 Nairobi City Nairobi 17 85 3,643 2,415,310
Kenya 290 1,450 46,096 22,102,532

By former province

The eight former provinces were replaced by the 47 counties under the 2010 Constitution, but they are still a common way to group counties.

Former province Counties Constituencies Wards
Coast 6 26 130
North Eastern 3 18 90
Eastern 8 44 220
Central 5 34 170
Rift Valley 14 76 380
Western 4 33 165
Nyanza 6 42 210
Nairobi 1 17 85

What each electoral unit elects

  • Country: the President (with a running mate for Deputy President).
  • County (47): a governor, a senator and a woman representative to the National Assembly.
  • Constituency (290): a Member of Parliament.
  • County assembly ward (1,450): a Member of County Assembly.

Read more on Kenya's six elective positions or the 2027 General Election.