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)

1,163,146

Registered voters (2022)

506,138

Voting-age by Aug 2027 (est.)

882,371

Gen-z eligible 2027 (est.)

355,360

40.3% of the 2027 voting-age est.

Gen-z (born 1997-2012)

355,360 eligible

≈ 203,839 of today's registered voters, if registration mirrors the age structure.

Youth (18-34 in 2027)

448,884

The bloc every 2027 campaign is chasing.

Millennials (born 1981-1996)

305,268

Peak-turnout generation in Uasin Gishu.

Age structure · Uasin Gishu

2019 census population by five-year band.

0-4

140,223

5-9

140,552

10-14

146,860

15-19

131,931

20-24

127,615

25-29

106,195

30-34

93,453

35-39

68,218

40-44

56,602

45-49

45,361

50-54

29,776

55-59

24,776

60-64

16,981

65-69

12,643

70-74

8,697

75-79

5,717

80-84

3,565

85-89

2,082

90-94

950

95-99

658

100+

291

Voters by constituency and ward · Uasin Gishu

County age share (40.3%) applied to each seat's 2022 registered voters, an estimate, since sub-county age data isn't published.

Loading map…

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.