KEY POINTS
  • Amazon is already capable of offering same-day and one-day delivery to 72% of the total U.S. population, according to RBC Capital Markets.
  • The vast delivery network is a result of significant investments over the past four years.
  • Amazon said on its latest earnings report that it's making one-day delivery the default for Prime members.
Amazon.com boxes are shown stacked near a Boeing 767 Amazon "Prime Air" cargo plane on display in a Boeing hangar in Seattle.

A closer look at Amazon's delivery network illustrates why the company is now ready to make one-day shipping the default for its Prime members.

Amazon is already capable of offering same-day and next-day delivery to 72% of the total U.S. population, including almost all of the households (95% or more) in 16 of the wealthiest and most populated states and Washington, D.C., according to a report published in March by RBC Capital Markets.