"America has a lot of post offices — over 31,000 in fact. Most sell enough stamps and other services to cover their costs, but many, especially those in rural areas, do not.
Some 42 percent of the nation's post offices were underwater in 2019, not generating enough revenue to cover their expenses, according to a report released last month by the U.S. Postal Service inspector general. Half of those that didn't cover their costs are within 5 miles of another post office."