Types of Population PyramidsA population pyramid shows the age and gender of a society. Population pyramids allow geographers analyze a place and identify its rate of growth. There are three types of growth; rapid, slow/stable and negative/declining. Below are examples of each stage.65+60-6455-5950-5445-4940-4435-3930-3425-2920-2415-1910-145-90-44.03.53.02.52.01.51.0.5.51.01.52.02.53.03.54.0POPULATION PYRAMIDS WORKSHEETNegative or Declining Growth Population PyramidThe top third and bottom third are both smaller than the middle section of the pyramid. This type of population pyramid is mostly found in developed countries. These countries have good health care, long life expectancies and stable governments. However, their birth rates are lower than needed to replace the population.