More on Population Pyramids

Today in class we continued learning about population pyramids. Instead of looking at examples of made up places we looked at population pyramids of actual citied and towns around the U.S. We were given the city name and the pyramid, and we had to guess why each pyramid looked the way it did. For example, some pyramids were really heavily populated around the 19-25 age group. This was because of a big college in that city where most of the population moves to that city for college and then moves away for job opportunities, making the older population lower. The younger population is lower because the bulk of the population doesn't have time to start a family and have kids if they're busy with college.