Rustbelt (noun)

An area of a country, typically in the Northeastern or Midwestern U.S., that has experienced a decline in heavy industry and a corresponding loss of jobs and population.

Origin:

First recorded in the late 1970s, from rust + belt.

Examples:

1. The city is located in the rustbelt region, which has seen a decline in its manufacturing base.
2. Many of the rustbelt cities are struggling to revive their economies.
3. Politicians have promised to revive the rustbelt by bringing back jobs.
4. The rustbelt region has been hit hard by the loss of manufacturing jobs.
5. The rustbelt region is characterized by boarded-up factories and empty streets.