July 1st, 2023
Postal workers deliver the scores of mailed letters and packages that are distributed all across the country -- and the world. On National Postal Workers Day, people pay tribute to the hardworking men and women who are employees of the United States Postal Service®, who work tirelessly to make sure mail is received in a timely manner.
Source: www.census.gov/newsroom/stories/postal-worker-day-postage-stamp-day.html