Nyandarua County population 2025 is projected at 724,790, reflecting consistent growth in this agriculturally rich highland region of Central Kenya. Located along the western slopes of the Aberdare Range, Nyandarua is known for its cool climate, large-scale potato and vegetable farming, and key role in food production. Despite remaining largely rural, it has seen steady population increases due to improved rural infrastructure and market access.
In 1979, Nyandarua recorded 233,302 residents. The population rose to 345,420 in 1989 and 479,902 in 1999. The 2009 census showed 596,268, which grew to 638,289 in 2019. By 2023, the estimate stood at 695,531, and following the growth trend, the 2025 projected population is 724,790.
Nyandarua County Population Over Time
| Year | Population |
|---|---|
| 1979 | 233,302 |
| 1989 | 345,420 |
| 1999 | 479,902 |
| 2009 | 596,268 |
| 2019 | 638,289 |
| 2023 (Est.) | 695,531 |
| 2025 (Proj.) | 724,790 |
Ol Kalou is the county’s administrative capital, while towns like Engineer, Njabini, and Nyahururu (bordering Laikipia) serve as key trading centers for fresh produce and livestock. With large portions of the population engaged in rain-fed farming, land productivity and post-harvest access are central to livelihoods.
Agricultural Growth and Service Delivery
The Nyandarua County population 2025 projection highlights the need for improved roads, storage facilities, and market access to support its predominantly agricultural population. Expanding healthcare, irrigation systems, and youth training programs will be essential for inclusive growth.
With the right support, Nyandarua’s fertile land and growing population can drive food security and rural prosperity not just locally, but nationally.
