National Population Housing Census
The National Population and Housing Census for Papua New Guinea is one of the important national events on the calendar of the country every ten years. The country’s fourth National Population and Housing Census was supposed to be held in July 2010. However, the event was deferred to July 2011 to provide sufficient preparation time. The first three censuses of the country were held in 1980, 1990 and 2000.
Summary of findings 
- The population of Papua New Guinea has reached 7,275,324 according to 2011 Census. It has increased by 40% and at average annual growth rate 3.1% since the last census in 2000. In absolute numbers a total of 2,084,538 persons were added to the population during the last 11 years.
- About 39% of the population live in the Highlands region followed by Momase region with 26% while Southern and Island regions make up 20% and 15% respectively.
- The annual growth for the Papua New Guinea has increased steadily from 2.2 % in 1980 and currently stands at 3.1%. The Highlands and Island regions have annual growth higher than the national average.
- Sex ratio ( number of males to every 100 females) has remained steady at 108 as reported in the last census. Likewise, the household size is 5.3 persons, a slight increase from 5.2 reported in 2000 census.
- Of the 22 provinces, Morobe province alone contains almost 9.3% of the country’s total population, reporting a total population count of 674, 810 person in 2011 Census. Eastern Highlands and the Southern Highlands (minus Hela province) are the other two most populated provinces with population in excess of half a million.
- Significant increase in population is noted mostly for provinces in the Highlands and Islands. However this is not the case for the provinces in Momase region where population growth rate is comparatively lower.
- Since 1980, the population of Papua New Guinea has more than doubled from 3 million to 7.3 million in a matter of 31 years.
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