The 4 extra digits in a 9-digit postal code identify which of the following?

The 4 extra digits in a 9-digit postal code identify which of the following?

• A. A city-wide area
• B. The county
• C. The street name
• D. A specific geographic segment within the 5-digit postal code

Answer: (D)

The extra digits in a 9-digit postal code are used to pinpoint a very specific delivery point within the larger five-digit area. The five-digit ZIP identifies a broad geographic region, like a city or part of it. The four additional digits narrow that region down to a precise segment—such as a block, a group of buildings, a single building or PO box, or another small delivery route within that area. This is what makes mail routing and sorting more efficient. So the extra digits don’t designate the entire city-wide area or the county, and they aren’t simply the street name itself. They identify a specific geographic segment inside the 5-digit zone, enabling the mail carrier to reach the exact delivery point.

The extra digits in a 9-digit postal code are used to pinpoint a very specific delivery point within the larger five-digit area. The five-digit ZIP identifies a broad geographic region, like a city or part of it. The four additional digits narrow that region down to a precise segment—such as a block, a group of buildings, a single building or PO box, or another small delivery route within that area. This is what makes mail routing and sorting more efficient.

So the extra digits don’t designate the entire city-wide area or the county, and they aren’t simply the street name itself. They identify a specific geographic segment inside the 5-digit zone, enabling the mail carrier to reach the exact delivery point.