Middleburg, VA (March 5, 2019) - How do DMA ZIP® Codes provided by Nielsen® compare to ZIP® Codes provided by TRUCKADS®? They are very similar, however ZIP® Code databases vary depending on when they are updated. Do minor differences matter? Unless you think "less than 0.1% matters", then No.

"We update our ZIP® Code list once a year based on the USPS database."

ZIP® Codes are generated by the United States Post Office (USPS) and are constantly updated and maintained. We  update our ZIP® Code list once a year based on the USPS database. According to the USPS, ZIP® Code updates amount to less than 0.1% of the total number of ZIP® Codes, per year.

According to https://wikipedia.org, in 2015 there were a little over 42,000 ZIP® Codes in the United States. ZIP® Codes are used for tracking U.S. mail and gathering geographical statistics in the United States. Because ZIP® Codes are the cornerstone of the U.S. Postal Service (USPS) mail distribution system, USPS has long resisted changing them for any reason other than to improve the efficiency of mail delivery.

For the purposes of marketing to specific media markets, our ZIP® Code database serves our customers well at a reasonable price!