The fertility in Viet Nam has almost halved over the last 30 years. The total fertility rate (TFR) declined from 3.80 children per woman in 1989 to 2.09 children per woman in 2019. Viet Nam has maintained a stable replacement level fertility for more than a decade, and the practice of having two children remains a prevalent trend. These results once again affirmed that Viet Nam has successfully implemented the Population and Family Planning Program with the aim of reducing fertility.