Cambodia's Demographic Transition: Moving into Stage 3

Cambodia is currently classified as being in Stage 3 of the Demographic Transition Model (DTM), characterized by declining birth rates, low death rates, and a slowing but still positive population growth rate. This transition reflects significant improvements in healthcare, education, and economic development over recent decades.

The Stages in Cambodia's Context

• Stage 1 (Pre-1970s): High birth and death rates, stable population. Pre-modern conditions with limited healthcare.
• Stage 2 (1970s–1990s): Death rates plummeted due to basic public health measures, while birth rates remained high, causing rapid population growth. This period was disrupted by the Khmer Rouge genocide (1975–1979), which caused a catastrophic mortality spike and fertility drop.
• Stage 3 (2000–Present): Birth rates have fallen sharply due to increased contraceptive access, female education, urbanization, and economic shifts. The total fertility rate dropped from over 6 in the 1990s to around 2.5 today. Population growth continues but at a decelerating pace.
• Stage 4 (Projected Post-2020): Low birth and death rates, stabilizing population. Cambodia is approaching this stage as fertility nears replacement level.
• Stage 5: Sub-replacement fertility and population decline, not yet applicable.

Cambodia's demographic dividend—a large working-age population relative to dependents—presents a window for economic growth if matched with job creation and human capital investment.