The richest people in Kisii County represent a powerful mix of political leaders, entrepreneurs, professionals, and business moguls. Located in Kenya’s southwestern highlands, Kisii is known for producing influential figures in governance, law, medicine, and transportation. This list ranks the top 10 wealthiest individuals in Kisii County based on estimated net worth in Kenyan Shillings (Ksh) and US Dollars (USD), while outlining how they built their fortunes and shaped the county’s growth.
Top 10 Richest People in Kisii County
1. Simeon Nyachae (Late)

- Net Worth: Ksh 300 billion (~USD 2.5 billion)
- Industry: Business, Politics
- Overview: The late Simeon Nyachae was a billionaire tycoon and influential leader. His investments spanned banking, real estate, agriculture, and manufacturing across Kenya and beyond.
2. Evans Nyagaka Anyona

- Net Worth: Ksh 1.2 billion (~USD 10 million)
- Industry: Transport
- Overview: Evans is the founder of ENA Coach and a co-owner of Transline Classic, two of Kenya’s most successful long-distance transport companies. His rags-to-riches journey inspires many in Kisii and across the nation.
3. Dr. Nehemiah Angwenyi Ongeri

- Net Worth: Ksh 800 million (~USD 6.7 million)
- Industry: Healthcare
- Overview: A leading internal medicine specialist and founder of Kisii Galaxy Medicare Centre, Dr. Angwenyi has transformed healthcare delivery in the region through premium medical services.
4. Fred Matiang’i

- Net Worth: Ksh 600 million (~USD 5 million)
- Industry: Public Service
- Overview: A former Interior Cabinet Secretary, Matiang’i’s career has been marked by high-level government roles, policy influence, and security sector reforms.
5. James Ongwae

- Net Worth: Ksh 500 million (~USD 4.2 million)
- Industry: Politics
- Overview: Ongwae is the immediate former Governor of Kisii. His investments in real estate and education have had lasting effects in Kisii County.
6. Prof. Sam Ongeri

- Net Worth: Ksh 450 million (~USD 3.8 million)
- Industry: Education, Politics
- Overview: A veteran politician and academic, Ongeri has served as Minister of Education and Health and held senatorial positions, investing heavily in educational ventures.
7. Dr. Monda
- Net Worth: Ksh 400 million (~USD 3.3 million)
- Industry: Healthcare, Politics
- Overview: Dr. Monda is a medical doctor-turned-politician known for advancing public health and education policies within Kisii and nationally.
8. Charles Nyachae

- Net Worth: Ksh 350 million (~USD 2.9 million)
- Industry: Law
- Overview: A constitutional lawyer and former chair of CIC Kenya, Nyachae has maintained a successful legal career while preserving his family’s business legacy.
9. Dr. Joyce Nyamweya

- Net Worth: Ksh 300 million (~USD 2.5 million)
- Industry: Academia
- Overview: Dr. Nyamweya is a respected academic leader and former university administrator with investments in education and policy advisory.
10. Hon. Richard Onyonka

- Net Worth: Ksh 250 million (~USD 2.1 million)
- Industry: Politics
- Overview: Onyonka is a longtime Member of Parliament known for championing development projects and representing Kisii interests at the national level.
Conclusion
The richest people in Kisii County have risen through diverse paths—entrepreneurship, public service, healthcare, and politics. From the legacy of Simeon Nyachae to modern-day icons like Dr. Angwenyi and ENA Coach’s Evans Anyona, these individuals have elevated Kisii’s reputation on both national and global stages. Their wealth is not only a reflection of personal success but also a force for regional development.







