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)

1,056,595

Registered voters (2022)

620,929

Voting-age by Aug 2027 (est.)

831,830

Gen-z eligible 2027 (est.)

268,481

32.3% of the 2027 voting-age est.

Gen-z (born 1997-2012)

268,481 eligible

≈ 200,411 of today's registered voters, if registration mirrors the age structure.

Youth (18-34 in 2027)

324,570

The bloc every 2027 campaign is chasing.

Millennials (born 1981-1996)

221,820

Peak-turnout generation in Murang'a.

Age structure · Murang'a

2019 census population by five-year band.

0-4

110,514

5-9

114,251

10-14

117,758

15-19

105,467

20-24

75,426

25-29

64,798

30-34

71,734

35-39

68,897

40-44

62,972

45-49

56,803

50-54

45,716

55-59

42,222

60-64

30,447

65-69

28,212

70-74

24,657

75-79

14,953

80-84

10,123

85-89

6,164

90-94

2,978

95-99

1,656

100+

847

Voters by constituency and ward · Murang'a

County age share (32.3%) 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.