Progression of the 2010 Census Round
Two hundred thirty (230) countries or areas have scheduled at least one census in the 2010 census round spanning the period 2005 to 2014. This also includes countries which base their detailed population statistics on population registers, administrative records, sample surveys or other sources or a combination of those sources. Of those 230 countries or areas, 176 have already conducted a census in this census round. Five countries or areas have not yet scheduled any census until 2014 (as of 1 December 2011; for a detailed table see here).
Figure 1 shows the overall temporal distribution of censuses over the period of the 2010 round (first censuses only). A number of countries/areas have postponed their census since the initial announcements shifting the peak of census taking from the year 2010 to the year 2011 (with currently 69 first censuses scheduled for 2011). The graphs in Figure 2 show the temporal distribution separated for the major regions. Note that dates of scheduled censuses may continue to change and that countries or areas which have not yet scheduled a census may do so in the future or that countries may renounce their already scheduled census.
Fig. 1: Distribution of conducted and scheduled censuses over the period of the 2010 Census Round. For every country or area only the first census in this round is included.
Fig. 2: Distribution of conducted and scheduled censuses over the period of the 2010 Census Round according to region (n.s. = not scheduled).
An estimated 5 998 471 825 persons (87% of the estimated world population) have been enumerated in the 176 censuses conducted as of 1 December 2011 (this figure is based on the projected population for the year 2010 as estimated by the UN World Population Prospect Revision 2010, Medium Variant). At the end of the first year of the 2010 census round, 2005, an estimated 5% of the world population had been enumerated (see Fig. 3). At the end of 2009 this proportion increased to 21%. The single year with the highest number of persons enumerated is 2010, when 43 countries or areas (including China) with a population of over 2 515 million (36% of the world population) conducted a census. At the end of the census round in 2014, 98.9% of the world population will have been enumerated (based on the current census schedule).
Fig. 3: Projection of the enumerated population over the course of the 2010 Census Round.