Monday is busiest mailing day as holiday shipping deadlines loom

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SAN DIEGO – With just six days until Christmas, Santa’s elves are working overtime. It’s also extra busy for postal workers!

The U.S. Postal Service says Dec. 19 will be the busiest mailing day of the year, estimating that 5 million customers will visit the nation’s more than 31,000 post offices and 7 million people will visit the USPS website.

On an average day, more than 2.7 million customers conduct business among the nation’s brick and mortar locations while nearly 4.7 million customers visit

Learn More: Holiday shipping deadlines for UPS, FedEx, USPS

Officials say the best time to drop off a letter or package is either when the post office opens or mid-afternoon.

In an effort to keep the line moving, you’re asked to have your package or letter addressed before you get to the post office.

Another tip, don’t try and guess the zip code of the address because guessing incorrectly will delay delivery.

“That’s most important because you want the card to get to your loved ones by the holiday. You don’t want it to be sent back to you because there’s no valid zip on it,” said Mary Dandle, spokesperson for the U.S. Postal Service.

Here’s a list of the upcoming holiday delivery deadlines:

Dec. 20 – First-Class Mail Cards and Letters
Dec. 21 – Priority Mail
Dec. 23 – Priority Mail Express

The longer you wait, the more expensive it is to guarantee delivery before Christmas.

The Postal Service expects to deliver approximately 16 billion cards, letters and packages this holiday season.

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