Because Kenya faces challenges in all sectors: endemic poverty, continual deforestation, and high infant mortality rate, it seems a natural for cross-sectoral development work. But frequently development organizations focus on single sector work. An assessment of the overall “state of integration” has not been taken recently to encourage or demonstrate the benefits of an integrated approach. The integrated population-health-environment (PHE) approach to development recognizes the interconnectedness between people and their environment. With a population increase from 8 to 37 million in just forty years, Kenya became the first Sub-Saharan nation to adopt a National Family Planning Program, but many still report an unmet need for family planning. While the health sector has been improving in many ways, there has been an increase in infant and child mortality and deterioration in completed vaccination coverage. In the environmental sector there has been an increase in nationally protected areas, but distressing issues still exist such as deforestation, a decline in wildlife populations, soil erosion, and water scarcity- all issues tied to population growth. Reflected in the Kenya Vision 2030 are new initiatives to strengthen cross-sectoral collaboration. This has led to a better acceptance of the integrated approach among development practitioners. While challenges remain and results are not always immediate integration has proven to be worthwhile.