County Regions
Central Region
Central region has five counties and ranked fifth in the regional index. Muranga and Nyeri ranked in the top 20 overall CountyTrak Performance Index with Muranga and Kiambu featuring in the Condition of Life index top league.
| RANK | COUNTY | POPULATION CENSUS 2009 | COUNTYTRAK PERFORMANCE INDEX |
| 1 | MURANGA | 942,581 | 56.7% |
| 2 | NYERI | 693,558 | 56.3% |
| 3 | KIRINYAGA | 528,054 | 54.2% |
| 4 | NYANDARUA | 596,268 | 54.0% |
| 5 | KIAMBU | 1,623,282 | 53.7% |
| 4,383,743 | 55.0% |
| RANK | COUNTY | POPULATION CENSUS 2019 | COUNTYTRAK PERFORMANCE INDEX |
| 1 | NYERI | 759,164 | 49.30% |
| 2 | MURANGA | 1,056,640 | 47.50% |
| 3 | KIRINYAGA | 610,411 | 47.30% |
| 4 | NYANDARUA | 638,289 | 45.00% |
| 5 | KIAMBU | 2,417,735 | 43.90% |
| 5,482,239 | 46.60% |
Muranga County
| Governor | MWANGI WA-IRIA |
| Senator | KANG’ATA IRUNGU |
| Women Representative | MAITU SABINA WANJIRU |
Nyeri County
| Governor | KAHIGA EDWARD MUTAHI |
| Senator | ENG EPHRAIM MWANGI MAINA |
| Women Representative | WACHIRA RAHAB MUKAMI |
Kirinyaga County
| Governor | WAIGURU ANNE MUMBI |
| Senator | KIBIRU CHARLES REUBENSON |
| Women Representative | NGIRICI PURITY WANGUI |
Nyandarua County
| Governor | KIMEMIA FRANCIS THUITA |
| Senator | MWANGI PAUL GITHIOMI |
| Women Representative | GITAU FAITH WAIRIMU |
Kiambu County
| Governor | NYORO JAMES KARANJA |
| Senator | KIMANI WAMATANGI PAUL |
| Women Representative | WAMUCHOMBA GATHONI |
Muranga County
| Governor | H.E Irungu Kang’ata |
| Senator | Hon. Joel Nyutu |
| Women Representative | Maina Betty Njeri |
Nyeri County
| Governor | H.E Edward Mutahi Kahiga |
| Senator | Hon. William Wahome |
| Women Representative | Wachira Rahab Mukami |
Kirinyaga County
| Governor | H.E Anne Mumbi Waiguru, EGH OGW |
| Senator | Hon. Kamau Murango |
| Women Representative | Maina Jane Njeri |
Nyandarua County
| Governor | H.E Moses Badilisha Kiarie |
| Senator | Hon. John Methu |
| Women Representative | Gitau Faith Wairimu |
Kiambu County
| Governor | H.E Kimani Wamatangi |
| Senator | Hon. Karungo Thangwa |
| Women Representative | Muratha Anne Wanjiku Mugo |