The population of Forks City, Washington, has a somewhat stable population. Some age groups are a little unstable, such as 50-64 year olds because there are more 50 - 64 than the younger ages that can replace them.
Boston, Massachusetts population is very unstable and is slowly declining . There is not enough babies being born to replace the older population.
The population of Cottonwood, Arizona seems stable, except that there are more males than females in the population.
The population of Baton Rouge, Louisiana is declining in from the 5 to 24 year olds because the population of 20 to 24 year olds are greater that the age populations from below and there is not enough people to replace the older generations.
The WInchester City population looks like it is expanding slowly.
The population of the city of Broken Arrow, Oklahoma is stable at 30 to 84, but there is a big decrease in the population between the ages of 20 to 24 year olds and that will not replace the older generations before them.