Washington State Population Pyramid, 1990
Source: US Census Bureau STF 1

This Population Pyramid presents Washington State's population by age and gender. The left hand set of bars is the number of Males by age cohort, beginning at age 0-4 on the bottom and topping out at the age cohort of 85 and older. Females are on the right hand side of the chart. Note that there are more elderly females than males at the top of the pyramid, reflecting the higher mortality rate of males.

It is also interesting to note that the Baby Boom is clearly identifiable in this chart. The "bulge" (or "pig in the python") in the age cohorts 25-29 through 40-44 represents all the post-WWII babies that have altered public policy, government services, and local planning ever since. The trough, or much smaller cohort immediately behind the Boomers, has also had significant effects on local planning and programming efforts. Lastly, the "Baby Boomlet", the children of the baby boomers, is also apparent in the youngest age cohorts.


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