Kalikasan Philippines

Farm 04 Cadu, Ilagan

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A peek of Ilagan River

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RBS Farm, Santo Tomas Naguilian

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Malalam, Ilagan

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Somewhere only we know!

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Historical and Projected Populations of the Philippines (1900-2150)

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If the Philippines were a microcosm of the world, i.e., in terms of population density, the Philippines exceeded the much dreaded nine (9) billion world population[1] equivalent way back in 1950, when the Philippine population was 21.14 million (US Census). In 1950, the Philippines ranked 21st among countries in terms of population; but, its population of 21.14 million is equivalent to a 10.6 billion world population if the earth has a human population density like the Philippines.

Fast forward to 2014, the Philippines joined a very exclusive club of countries with a population exceeding 100 million. One hundred (100) million Filipinos living in the Philippines is equivalent to a world population of 50 billion. Staggering!

What is even more significant is that the Philippines has the second highest growth rate [2] among the current twelve (12) countries with a population exceeding 100 million. It is almost boggling to comprehend that 200 million Filipinos living in the Philippines would be equivalent to a world with 100 billion human beings — more than ten times the much dreaded nine (9) billion world population[1].

Historical and Projected Populations of the Philippines (1900-2150)
Fig. 01. Historical and Projected Populations of the Philippines (1900-2150). Legends: Pien/NSCB - this data (open red circle, light green trend line) includes a portion of the historical data compiled by Professor Pien (cited by NSCB) dating back all the way to the Spanish regime and pre-hispanic era.  However, the data before 1903 does not include other "native Filipinos". It also integrated the latest Philippine Statistics Agency (PSA) data that included the latest 2010 Philippine Census and the projected Philippine population up to 2045 (based on a medium assumption growth rate). US Census/CGC - The US Census population data and projects span from 1950-2050 (light green circle filled with yellow, dark blue trend line), for purposes of our sustainable ecosystem investigation this was extended further until the theoretical sigmoidal curve starts to plateau using the projected Philippine growth rate from the of the International Data Base database of the US Census  as a guideline but at the same time integrating the most recent data from the Philippine population census that the Philippine population growth has started to decelerate to a slightly slower growth rate. The other four projections (NSCB- CGC01 to CGC04) are hypothetical sigmoidal curve projection integrating the actual Philippine census data and the projections by the PSA and US Census.  NSCB/CGC01 -- (light green triangle filled with yellow,  red trend line).  NSCB/CGC02 -- (light violet circle filled with yellow, lift yellow trend line). NSCB/CGC03 -- (rust yellow-brown diamond, light blue trend line). NSCB/CGC04 (light blue inverted triangle filled with yellow, light yellow trend line).



World Population Projections
Fig. o2. World Population Projections. [Image prepared by Wikipedia.]




  1. Nine (9) billion human population is the target stable human population of the world deemed to be sustainable by the United Nations (see Fig. 02)
  2. Nigeria has the highest growth rate among the current countries with population exceeding 100 million. A separate discussion will show that there are a number of countries with growth rates much higher than the Philippines.  Ethiopia, with a population nearing 100 million, has a higher growth rate than the Philippines, however, it has a larger land area so that Ethiopia has a higher carrying capacity than the Philippines.