USPS Contract Postal Unit Diamond Bar, CA

USPS Contract Postal Unit locations are independently operated postal facilities that offer many of the same services as traditional post offices, such as selling postage stamps and packaging supplies, as well as shipping and mailing services. These locations are typically located within businesses, such as grocery stores, drugstores, or office supply stores, making it convenient for customers to access postal services while running errands or shopping. While USPS Contract Postal Units are not official post offices, they are authorized by the United States Postal Service to provide these services on their behalf.