Voter Demographics

Who can vote in 2027, by generation and age band: 2019 census age structure projected to election day, joined with the IEBC 2022 register.

Scope

Population (2019)

901,736

Registered voters (2022)

428,067

Voting-age by Aug 2027 (est.)

673,953

Gen-z eligible 2027 (est.)

285,553

42.4% of the 2027 voting-age est.

Gen-z (born 1997-2012)

285,553 eligible

≈ 181,371 of today's registered voters, if registration mirrors the age structure.

Youth (18-34 in 2027)

349,130

The bloc every 2027 campaign is chasing.

Millennials (born 1981-1996)

213,646

Peak-turnout generation in Kericho.

Age structure · Kericho

2019 census population by five-year band.

0-4

109,558

5-9

118,225

10-14

127,017

15-19

107,190

20-24

85,577

25-29

73,365

30-34

70,110

35-39

44,925

40-44

40,497

45-49

34,671

50-54

21,071

55-59

20,711

60-64

15,737

65-69

11,963

70-74

9,157

75-79

4,560

80-84

3,528

85-89

2,139

90-94

928

95-99

591

100+

216

Voters by constituency and ward · Kericho

County age share (42.4%) applied to each seat's 2022 registered voters, an estimate, since sub-county age data isn't published.

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Estimated 2027 voting-age population by ward (county age share × 2022 register). Darker = more voting-age residents.

Methodology & sources

Age structure: KNBS 2019 Census (via OCHA COD-PS, data.humdata.org/dataset/cod-ps-ken), from the 2019 census county tables (KNBS via OCHA).
Registered voters: IEBC 2022 General Election register (per ward), the same figures behind every seat page here.
2027 projections age the census cohorts forward to August 2027 (whoever was N years old in 2019 is N+8), ignoring mortality and migration; treat them as estimates.
Gen-z = born 1997-2012; those born by August 2009 are eligible in 2027. Constituency and ward figures apply the county's age share to the seat's registered voters.
These are eligibility and registration figures, never turnout predictions.