It's going to be an extremely busy week to send out letters and packages. If you're headed to a local post office, you may be faced with long lines.
"I'm mailing Christmas cards and also a few gifts." Phyllis Erdmann said.
Many Hy-Vee customers stopped by the post office to make sure their letters and gifts would be mailed on time.
"We send out about 250 Christmas cards. We have friends all over the world. We were in the military and then we did ministry work and so it's very important for us that we do that. We try to get in done in time. I just mailed a batch of 50 of them and they will each include a handwritten note," Connie Gilbride said.
Along with letters, package volume is also expected to increase around 12 percent from last year. About 420 million packages are expected to be mailed during the 2013 holiday season.
"A lot of letters and a lot of packages, especially packages out of state," Post Office Customer Service Manager Sarah Mark said.
But the deadlines are looming for those who want to get their letters and gifts mailed out in time for Christmas.
"First class mail, as long as it's mailed by December 20, the post office says it should get there by Christmas. Priority mail would be December 21 and then express mail, which is also known as overnight, as long as it's mailed by December 23, they are saying that it should be there by Christmas," Mark said.
The busiest delivery day for mail will be Wednesday and the busiest day for packages will be Thursday.