Nairobi County is a major hub in Kenya. It’s also one of the most populated counties in the country, so understanding its population size is important for future planning.
Here’s a breakdown of the current population of Nairobi County and how it’s changed over the years.
Nairobi’s Population in 2025
In 2025, Nairobi continues to be the most populous county in Kenya. Here’s a quick look at the numbers:
- The county’s population is about 4.9 million.
- The greater Nairobi metro area is estimated to have 5,767,000 residents.
- That’s a 4.08% increase over 2024.
This consistent growth of about 4% per year is primarily driven by urbanization and migration.
Population Trends in Kenya and Nairobi
Kenya’s overall population has been consistently increasing. In 2025, it reached an estimated 53.3 million people.
Nairobi’s population growth follows the same trend. The metro area’s population in 2024 was approximately 5,541,000.
Projections show that this growth will continue. Experts predict that Kenya will have 57.8 million people by 2030.
Wrapping Up
Nairobi County is home to a large percentage of Kenya’s population. Analyzing the trends in its population is key for planning and sustainable growth.