The population of Lao PDR has reached more than 7 Million and is growing at an annual rate of 2.4%. The average population density is 21 persons per square kilometer, giving Lao the lowest population density in Asia. The highest population in Lao is in Vientiane municipality, with shows more than 150 people per square kilometer, while the lowest population density is in Saysomboun Special Zone, at 8 per square kilometer as access is restricted there. If you can't interpret the numbers...Laos has a very little people compared to its neighbors even compared to their size.