Nyandarua County is a County in the former Central Province of Kenya. Its capital and largest town is Ol Kalou.Formerly the capital was Nyahururu, which is now part of the Laikipia County. Nyandarua County has population of 596,268 [and an area of 3,304 km² Requirements Three (3) years' service including one year in Registered Clinical Officer I grade. Higher Diploma in Clinical Medicine (Paediatric Emergency and Critical Care or equivalent). Certificate of Registration and valid practising licence from Clinical Officers' Council.