How Zip Codes Work

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Let us now look at the way the ZIP codes work. It was initially registered as the trademark for the USPS. The style is all caps though lowercase and sentence case can be used as seen in some publications. The first digit represents a group of States within the US. The second number and the third digits together represent the region that a large city or the group of states. The fourth and the fifth numbers represent the group of delivery address within that area or region. The main towns in every region always get the first ZIP codes for that area. The other ZIP codes now depend on the numerical order or with alphabetical order.

Po Boxes and zip codes

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Those with post office boxes have their mail delivered to their post office box so that they can pick them at their convenience. Let us now look at the way the ZIP codes work. It was initially registered as the trademark for the USPS. The style is all caps though lowercase and sentence case can be used as seen in some publications. The first digit represents a group of States within the US. The second number and the third digits together represent the region that a large city or the group of states. The fourth and the fifth numbers represent the group of delivery address within that area or region. The main towns in every region always get the first ZIP codes for that area. The other ZIP codes now depend on the numerical order or with alphabetical order

Dumfries Post Office

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Dumfries, Virginia -which was established on land donated by John Graham who named the town after his birthplace of Dumfries in Scotland is the oldest continuously chartered town in Virginia. Dumfries was the second leading port in Colonial America. It rivaled New York, Philadelphia and Boston and was a thriving port for more than 15 years.

Dumfries is located on Route 1, just off Interstate 95, approximately 28 miles south of our nation’s capital, Washington, D.C. and  78 miles north of Richmond, Virginia.

The sorting process at the Post Office

 

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The sorting process at the USPS after the accepting your mail and confirming the postage and address for shipping purposes. The Multiline Optical Character Reader extracts the ZIP code lookup data in the address, and it prints the bar code on the item. It should then route it for further shipment and sorting before the mail gets to its destination it has to go through many sorting processes. In the final sorting that, the post office will deliver the mail to the ultimate addressee. The item is then delivered by a mail carrier to the receiver’s mailbox at home.