For cities and communities in the United States, growth is good. It signals progress, status, new development. To be flat in population or to lose residents hints at problems or failure.

Throughout the history of the United States, the growth rate each decade has been over 10% for every decade except for 4 (1930s, 1980s, 2000s, 2010s). The population growth came through births and immigration. This population growth means many communities could grow. Some places might lose people – such as several prominent cities in the second half of the twentieth century – but there was growth in many places.
So if population growth across the United States slows, how can many cities, suburbs, and metropolitan areas also grow? There will be fewer people to go around. This could lead to some different outcomes:
- There will be clearer “winners” and “losers” in population.
- Communities and commentators could adjust their image of how much growth is needed. They could adjust their expectations down.
- Americans could decouple population figures from their ideas about quality of life. Perhaps population change has little relationship with whether communities are doing well.
My guess is that #1 would lead the way as people are used to growth and the perceived benefits that go with it. #2 and #3 could happen but would take time as people adjust to different realities where growth is more limited and fewer communities can expand in population.
And if population growth is harder to attain, what might communities and governments do to try to encourage more of it? Bigger incentives? More advertising? Promoting particular amenities or quality of life concerns?