What Is EDDM? (Every Door Direct Mail Explained)

Every Door Direct Mail, usually just called EDDM, is a USPS program that lets a business mail a postcard or flyer to every address on a chosen mail carrier route — without ever needing a single name or address on a list. You pick the routes, not the households, and the post office delivers to everyone on them.

That's the core difference from almost every other kind of mail advertising. A traditional mailing list requires you to already know who your customers are, or to buy a list from somewhere and hope it's accurate. EDDM flips that: you decide on a geographic area, and every home and business in it gets your piece, whether you've ever heard of them or not.

The routes themselves are defined by the postal service, not by you — each one covers a set number of addresses, often a few hundred to a couple thousand, depending on the neighborhood's density. You can mail one route for a very tight, local push, or several routes at once to cover a wider area.

Because there's no list to buy or maintain, EDDM tends to be one of the cheaper ways to reach a large number of nearby homes per piece. The tradeoff is that it's not targeted by anything except geography — you're not filtering by income, age, or past purchase behavior. For a business whose customers are mostly local anyway, like most retail, restaurants, home services, and personal care businesses, that's rarely a real downside.

The other thing worth knowing is that EDDM mail has to follow specific USPS size and format rules, and it gets a required design element on one side: an indicia (the postage marking) and an address block that says something like "Local Postal Customer," since there's no individual name to print. That side of the card is dictated by the post office; the creative side is entirely up to you.

In practice, this makes EDDM a strong fit for exactly the kind of push a lot of small businesses want to make: a grand opening, a seasonal promotion, or just a steady reminder to the people who live and work closest to you that you exist and what you offer.