Updated June 2026

Cheapest Way to Mail Postcards for a Small Business (2026)

There's no single "cheapest" — it depends on whether you're mailing a targeted list or a whole neighborhood, and how much of your own time you want to spend. Here's an honest breakdown of the three main routes (DIY stamps, EDDM, and full-service tools) with labeled cost ranges — so you can pick the one that's actually cheapest for you.

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The honest answer: the cheapest postcard method depends on what you're trying to do. If you want every household on a route and don't have a list, USPS EDDM usually wins on postage. If you have a targeted list (lapsed customers, a specific neighborhood you have data on), a self-serve platform that bundles printing and postage tends to be cheapest once you count your own time. Pure DIY (stamps + a copy shop) can look cheap but hides labor and minimum-order costs.

Below we lay out all three with clearly-labeled cost ranges, not fake-precise quotes. Postage and printing prices move, so confirm current numbers with USPS and any vendor before you commit. PostKnock is one of the tools mentioned — it's ours — and we've kept its claims to what it actually does.

Postcard mailing costs at a glance

Labeled cost ranges for a standard 4×6 postcard, not live quotes. "Per piece" means printing plus postage where applicable. Confirm current USPS rates and vendor pricing before you buy.

Method Typical cost per piece (est. range) Targeting Your time Best fit
DIY — stamps + print shop ~$0.55–$1.00+ (plus your labor) Any list you address yourself High Tiny one-off sends; you enjoy doing it yourself
USPS EDDM (saturation) Lowest postage per piece (+ printing & prep) Whole carrier routes — no list needed Medium Blanket a neighborhood; no customer list yet
Self-serve platform (PostKnock) ~$1.05 Free / ~$0.79 Pro (print + First-Class postage) Targeted CSV list or EDDM-style Low Repeatable, targeted sends with follow-up
Full-service agency Higher per piece (design + list + mgmt bundled) They build/buy the list for you Very low Hands-off; you want someone to run it

Ranges are planning estimates that summarize commonly-cited public pricing and USPS rate structures — not guaranteed quotes. Actual cost depends on quantity, paper/print quality, list source, and current USPS rates. PostKnock figures (~$1.05 Free, ~$0.79 Pro for a 4×6) are our own published prices. See Sources below.

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The three ways to mail postcards, compared

From most hands-on to most hands-off — with where each one is genuinely the cheapest.

1.

DIY: stamps + a print shop — cheapest looking, not always cheapest

The classic small-business move: design a card in a free tool, print a batch at a copy shop or on your own printer, buy postcard-rate stamps, address each one, and drive them to the post office. On paper the postage is low — USPS postcard-rate stamps are cheaper than a standard letter — and for a handful of cards it's hard to beat.

Where the cost hides: your time. Designing, printing, addressing, applying stamps, and the trip to the post office add up fast at any real volume. Print-shop minimums and reprints for mistakes eat into the savings, and a 4×6 at the postcard rate has size limits to qualify (oversized cards pay more). It's genuinely cheapest only for very small, occasional sends where your time is free.

Rough range: ~$0.55–$1.00+ per piece in stamps and printing, plus your labor. The labor is the part most people forget to price in.

2.

USPS EDDM — cheapest postage when you want a whole neighborhood

Every Door Direct Mail (EDDM) lets you mail to every address on selected USPS carrier routes at a reduced saturation rate, without buying a mailing list and without addressing each card individually. That's why it's typically the lowest postage-per-piece option: you skip the list cost and the per-address work.

The trade-off is targeting. You reach everyone on the route — renters, non-buyers, businesses — not just your ideal customer, so some of the spend lands on people who'll never convert. You also handle (or pay a printer to handle) the bundling and drop-off paperwork. EDDM shines when you don't have a customer list yet and want to blanket an area cheaply.

PostKnock supports EDDM-style saturation mailing as well as targeted list sends, so you can start with a neighborhood blanket and switch to a precise list later from the same account.

Learn about EDDM with PostKnock →

3.

Self-serve platform — cheapest for targeted, repeatable sends

Where PostKnock fits

A self-serve platform bundles printing and USPS First-Class postage into one per-piece price and does the addressing for you. You upload a CSV of your list, pick a design, preview a proof, and it prints and mails. For a targeted list — lapsed customers, a specific segment — this is usually the cheapest route once you value your own time, because there's no list-buying markup, no copy-shop minimum, and no trip to the post office.

With PostKnock specifically: postcards come in 4×6, 6×9 and 6×11; the per-piece price is about $1.05 on the free tier and roughly $0.79 on Pro ($99/mo or $799/yr) for a 4×6, printing and First-Class postage included. You pay per piece from a wallet — no campaign minimums. There's an in-app Design Studio, QR-code tracking, 50+ industry playbooks (postcard designs, timing and call scripts), and multi-wave sequences (up to 5 waves). On Pro, a built-in Call Queue gives your front desk a daily list of who to call after a postcard lands — the follow-up step most mailing tools leave out.

Honest caveats: PostKnock does not have native CRM or practice-management integrations — you bring contacts in by exporting a CSV from your other system and importing it (the wizard auto-maps columns). It does not send marketing email and has no AI features. If you need an API or CRM-triggered automation, a developer platform will fit better.

See PostKnock pricing →

4.

Full-service agency — most hands-off, highest per piece

A full-service direct-mail agency handles design, list sourcing, printing, mailing, and often strategy — you approve and they execute. It's the easiest path, and a fit if you'd rather not touch any of it. The cost is higher per piece because all that service is bundled in, and you'll often see campaign minimums and setup or design fees.

If cheapest-per-piece is the goal, agencies are usually the most expensive of the four routes. They earn their keep on convenience and done-for-you targeting, not on price.

Compare platforms vs agencies →

How to find your cheapest option

1

Do you have a list, or do you want a whole area?

No list and you want to blanket a neighborhood → EDDM is usually cheapest on postage. You have a targeted list of specific people → a self-serve platform that bundles print + postage is typically cheapest per useful piece.

2

Price your own time honestly.

DIY only stays cheap at tiny volumes. Once you'd spend an afternoon addressing and stamping, the labor usually costs more than what a platform charges to do it for you.

3

Is this a one-off or a repeatable system?

For a single send, raw per-card price matters most. For an ongoing reactivation program (mail, then call, repeat), a platform with playbooks and multi-wave sequencing — like PostKnock — lowers the cost of running it over time, not just the per-card price.

4

Want to test before you spend?

PostKnock has a genuinely free tier — no credit card, no minimum, no expiry — so you can send a small batch and see the true delivered cost before committing to a bigger run or a Pro plan.

Cheapest per card isn't the same as cheapest per result

The lowest per-piece price doesn't always win. What you really care about is cost per response — and that's driven far more by your list, your offer and your follow-up than by which vendor prints the card. Industry studies (e.g. the ANA/DMA) typically report direct-mail response rates in the low single digits — often cited around a 2–5% range for prospect and house lists — with wide variation by list quality and offer. Treat any single number as a ballpark, not a promise.

A practical example with transparent math: if you mail 500 targeted cards at ~$0.79 each (~$395) and 4% respond, that's 20 conversations for under $20 per lead — before you've added a follow-up call. Change the response rate to 2% and it's 10 leads at ~$40 each. The inputs are illustrative; plug in your own numbers.

Adding a timed phone call after a postcard lands is one of the more reliable ways to lift conversion versus mailing alone — which is why the per-card price is only part of the picture. Run your own scenario before deciding what "cheapest" means for you.

Run the numbers in the ROI calculator →

Free tools to plan your mailing

No account needed — use these to estimate cost and rough out a design before you spend a dollar.

Direct Mail ROI Calculator

Estimate cost per lead and payback at your own list size, per-card price and response rate — so "cheapest" is measured against results, not just postage.

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Postcard Designer

Rough out a 4×6, 6×9 or 6×11 layout with headline, offer and CTA before you commit — a strong card is what makes a cheap send actually pay off.

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Frequently Asked Questions

What is the cheapest way to mail postcards for a small business?▼

It depends on your list and volume. For a saturation send to every address on a route, USPS EDDM (Every Door Direct Mail) is usually the lowest postage per piece because you skip buying a mailing list and addressing each card. For a targeted list of specific people, a self-serve platform that bundles printing and First-Class postage into one per-piece price is typically cheapest once you factor in your own time. Buying stamps and printing at a copy shop yourself can look cheap on paper but adds hidden labor and minimum order costs. PostKnock has a genuinely free tier (no credit card, no minimum) at about $1.05 per 4×6 card, dropping to roughly $0.79 per card on its $99/mo Pro plan.

How much does it cost to mail a postcard in 2026?▼

Costs vary by method. DIY with postcard-rate stamps plus your own printing tends to land somewhere around $0.55 to $1.00+ per piece once you add printing, depending on quantity and print quality. USPS EDDM saturation postage is often the lowest per-piece on the mail side, though you handle bundling and drop-off or pay a printer to do it. Self-serve platforms that include printing and First-Class postage commonly fall in roughly the $0.70 to $1.30 range for a standard 4×6. Full-service agencies cost more per piece because design, lists and management are bundled in. These are planning estimates — confirm current rates with USPS and any vendor.

Is EDDM cheaper than mailing to a targeted list?▼

On a pure postage-per-piece basis, EDDM is usually cheaper because you do not buy a mailing list and you skip individual addressing — you mail to every address on selected carrier routes at a reduced saturation rate. The trade-off is targeting: you reach everyone on the route, not just your ideal customers, so a chunk of the spend lands on people who will never buy. For a known list (lapsed customers, a neighborhood you have data on), a targeted send often produces a better return even at a slightly higher per-piece cost. PostKnock supports both targeted list mailing and EDDM-style saturation mailing.

Does PostKnock really have a free tier?▼

Yes. PostKnock has a genuinely free tier — no credit card, no minimum order, and no time limit. You pay per piece from a wallet (about $1.05 for a 4×6 card on Free, including printing and USPS First-Class postage). The paid Pro plan ($99/mo or $799/yr) lowers cards to roughly $0.79 each and unlocks the Call Queue and multi-wave sequencing. You only pay for the cards you actually mail.

Can I import my customer list to mail postcards?▼

Yes — by CSV. Export your customer or patient list from whatever system you use (your scheduling software, CRM, spreadsheet, etc.) as a CSV file, then import it into PostKnock; the import wizard auto-maps the columns. Note that PostKnock does not have native CRM or practice-management integrations — bringing contacts in via CSV export and import is the supported flow.

What postcard sizes can I mail, and do bigger cards cost more?▼

PostKnock mails three sizes: 4×6, 6×9 and 6×11. Larger cards stand out more in the mailbox but cost more per piece because of higher printing and postage. The 4×6 is the lowest-cost option and the figures quoted here (about $1.05 Free / $0.79 Pro) are for the 4×6. If you want maximum attention and your budget allows, a 6×9 or 6×11 is worth testing against the 4×6.

Are there hidden costs with cheap postcard mailing?▼

Sometimes. DIY routes can hide costs in your own time (designing, printing, addressing, stuffing, driving to the post office), in print-shop minimums, and in wasted postage on bad addresses. Agency campaigns can carry setup fees, design fees and minimum order sizes. The cleanest way to compare is total cost per piece delivered, including labor. PostKnock's per-piece price bundles printing and First-Class postage with no campaign minimums, so the wallet number is close to your true cost.

Sources & notes

  • Response-rate ranges are framed from commonly-cited direct-mail industry benchmarks (the ANA, formerly the DMA, response-rate reporting). Figures are presented as hedged ranges, not guarantees; actual results vary widely with list quality, offer and follow-up.
  • Per-piece cost ranges summarize publicly-observable pricing structures for DIY postcard-rate postage, USPS EDDM saturation mail, and self-serve postcard platforms. They are planning estimates — confirm current USPS rates at usps.com and any vendor's pricing on the vendor's own site.
  • PostKnock figures (~$1.05 per 4×6 on Free, ~$0.79 per 4×6 on Pro; Pro at $99/mo or $799/yr, printing and USPS First-Class postage included) are PostKnock's own published prices and reflect the 4×6 size; 6×9 and 6×11 cost more per piece.

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