How long does it take mail to come from austin texas to katy texas?

1 - 2 days

The United States Postal Service targets delivery of 96% of mail (single-piece, first class mail) within 2 days. This includes mail such as bill invoice or payment, greeting card or personal letter. Most is delivered within one day.

The mail will take a day or two from Austin before it comes to Katy Texas.

The sender of the mail will drop in a mail box then about 4 pm the postal clerk will get all the dropped mail from the mail box and bring it to the local post office for sorting and goes to the Katy mail center and will be sorted again. It will be transported by a truck and the truck will wait into the dock until it is fully enough to take over to the Austin mail center. Sorted again by the local driver route and will finally delivered to the recipient.