EDDM Postcards That Actually Get Calls: A Practical Guide to Every Door Direct Mail

Every Door Direct Mail (EDDM) is a USPS service that delivers your mail piece to every address on the carrier routes you pick, with no mailing list required. USPS lists EDDM Retail postage at $0.26 per piece, for mailings of 200 to 5,000 pieces per ZIP Code per day. The postcards that get calls make one clear offer, show one tracked phone number and QR code, and get a fast follow-up.

EDDM is the neighborhood saturation tool for local businesses, schools, nonprofits and campaigns. It’s simple to buy and easy to waste. This guide covers how it works, what it costs, how to design a card that gets calls, and how to prove it paid off.

How Does Every Door Direct Mail Work?

EDDM replaces the mailing list with a map. Instead of addressing each piece, you choose mail carrier routes, and USPS delivers one piece to every address on them, addressed to “Postal Customer.” Here’s the process:

1. Pick your routes. Use the USPS EDDM Online Tool to choose routes by ZIP Code and see how many addresses each one covers.
2. Design a flat-size piece. EDDM pieces must be USPS flats, which are larger than a standard postcard. Sizes are covered below.
3. Print and prepare. Each piece needs the correct EDDM postage indicia. USPS asks you to bundle pieces in stacks of 50 to 100 and attach a facing slip to the top of every bundle.
4. Pay and drop off. EDDM Retail mailings go to the Post Office that delivers your chosen routes. EDDM BMEU mailings go to a Business Mail Entry Unit at a larger processing center.

The two versions compare like this, according to USPS:

Most first campaigns start with EDDM Retail. Our EDDM printing service designs, prints and bundles pieces to USPS specs, so they’re ready to drop off.

How Much Does an EDDM Campaign Cost?

Your total has four parts: postage, printing, design and preparation. Postage is the only fixed number. Printing depends on size, paper, quantity and finish, so get a real quote before you set a budget.

Here’s the postage math for one drop to 2,000 households:

2,000 pieces × $0.26 = $520 in postage.

The number that matters more is how many jobs you need to break even:

• Break-even jobs = total campaign cost ÷ gross profit per job
• Break-even response rate = break-even jobs ÷ (pieces mailed × the share of callers you close)

Example (illustrative numbers) Say the full campaign costs $1,500 and an average job earns you $500 in gross profit. You need 3 jobs to break even. If you close 1 in 4 callers, you need 12 calls from 2,000 pieces, a 0.6% response rate. Plug in your own numbers with the EDDM Cost & Postage Calculator.

You’ll notice we didn’t quote an “average EDDM response rate.” We couldn’t find a current, independent benchmark we trust, and results swing widely with the offer, the audience and the timing. Plan from break-even, then measure your own results.

What Size Should an EDDM Postcard Be?

EDDM pieces must qualify as flats, so a standard 4 × 6 postcard is too small. USPS prices EDDM Retail flats up to 3.3 ounces, and a flat can be no larger than 12 × 15 inches and 3/4 inch thick.

Sizes printers commonly offer include 6.25 × 9, 6.5 × 9 and 8.5 × 11 inches. A 6 × 9 card misses the flat minimum height of 6 1/8 inches by an eighth of an inch, so check before you design. Bigger cards give you more room for a headline, photos and an offer, but they cost more to print. Before you print anything, check your size with the Mailpiece Size Checker in the USPS EDDM Online Tool.

What Makes a Postcard Cut Through Like a Hot Knife?

Direct response rules still apply in the mailbox. A postcard gets a few seconds between the mailbox and the recycling bin, so every element has one job:

1. A headline that names the reader and the problem. “Is Your AC Ready for July?” beats your logo in giant type.
2. One offer with a real reason to act now. A free inspection, a seasonal tune-up or an open house date. If there’s a deadline, make it real.
3. One tracked phone number and one QR code. Send the QR code to a landing page built for this mailing, not your homepage.
4. Proof you can back up. Your real review rating, your license number where your state requires it, and photos of your actual work.
5. Big, high-contrast type. It should be readable at arm’s length, with no clutter. White space is a feature.
6. A closing line that restates the offer in one sentence, right next to the phone number. Think of it as the postcard’s P.S.

The same principles power our flyers and door hangers, which pair well with an EDDM drop.

How Do You Track EDDM Responses?

If you can’t measure it, you can’t improve it. Build tracking in before you print:

• A call-tracking number used only on this mailing
• A QR code to a dedicated landing page with UTM tags, so visits show up in your analytics under this campaign
• An offer code that callers mention or visitors type in
• A “How did you hear about us?” question on your forms and in your call script

The landing page should capture name, email and phone, then pass each lead straight to your follow-up. That handoff is where a lot of mail campaigns quietly fail.

What Happens After the Postcard Makes the Phone Ring?

A postcard can’t answer the phone. In Invoca’s 2026 home services benchmark, a person answered only 52% of inbound calls, and 55% of businesses never asked the caller to book. Web leads fare no better. When researchers sent web leads to 2,241 U.S. companies, only 37% responded within an hour, and 23% never responded at all (Harvard Business Review, 2011).

So before your mail lands:

1. Make sure every call gets answered. An AI voice agent can cover nights, weekends and busy hours.
2. Reply to every QR-code form automatically with an email, plus a text if the person opted in.
3. Follow up more than once. The Buttered System keeps following up until the lead books, buys or opts out.

Our guide to speed to lead covers how to automate that first reply.

Who Gets the Most From EDDM?

EDDM isn’t right for everything. If you need to reach specific people, like homeowners with pools or businesses of a certain size, a targeted mailing list will usually waste less postage. We’ll tell you which one fits your goal.

How Often Should You Send EDDM Postcards?

Treat one drop as a test, not a campaign. Plan a short series to the same routes, so people see your name more than once and you can compare results across drops:

1. Drop 1: 3 to 4 weeks before your busy season or event
2. Drop 2: 2 to 3 weeks later, same routes and offer, with a new headline
3. Drop 3: a final reminder close to the deadline

Keep the EDDM Retail limit of 5,000 pieces per ZIP Code per day in mind. Larger mailings may need to be split across days or sent through EDDM BMEU.

Which EDDM Mistakes Waste the Most Postage?

Most wasted EDDM budgets trace back to a handful of avoidable mistakes. Here’s what to watch for:

None of these fixes require a bigger budget. They require a plan before the print order.

Plan Your Next Mailing With Real Numbers

Start with the free EDDM Cost & Postage Calculator to estimate postage and see your break-even response rate. Then talk with us about design, printing and the follow-up that turns calls into booked jobs.

Estimate My EDDM Cost

P.S. The cheapest postcard is the one that gets answered. Before you mail a single piece, make sure every call and every QR-code form gets a fast reply.