[LearsFool]

An influx of residents would mean increased demand for - let's see - housing, stores, utility service, medical services, construction, car lots, real estate, roads, schools, etc. In short, everything that benefits those many cities/states/regions that try so hard to attract growth.

[DBrow]

Yes, increased demand. The people coming in will need to pay for that house, food, utilities, and so forth. They’ll need jobs.

Unless they can make money building houses for each other, they’ll all need to be engaged in some wealth-producing activity.

The lack of existing jobs is one reason the low-population states are low-population (else I’d be in one now!)