Turlock's population is relatively stable due to the consistency of the generations of families that live there. People stay to raise families and take charge of family businesses.
Chicago has a declining population, most likely because it is a large city with high crime rates. People don't want to raise children there.
Salt Lake City's population seems to be stable, potentially because there is a stable source of jobs there.
Reno's population is roughly stable potentially because of the source of jobs.
Little rock's population is expanding due to abundant jobs there provided by businesses headquartered there.
The population in Anchorage is growing because less people are leaving due to an unstable economy.
The population in Galena is somewhat steady because it is a small town. Families in small towns tend to stay there for generations.