Revised May 31, 2026
Direct Mail Postage and Mailing Costs
Four cost components drive every direct mail campaign. Understanding each one helps you budget accurately and find savings without cutting the wrong corners.
What Affects Direct Mail Cost?
Every direct mail invoice has four line items: printing, mailing list, mail processing, and postage. Some campaigns skip the list cost (EDDM), and some skip processing (if you supply a clean list). But understanding all four components gives you full control over your budget.
At Catdi Printing, we itemize every cost so there are no surprises. Postage is always billed as 100% pass-through — what USPS charges us is exactly what you pay.
Printing Cost
- Mail piece size and paper stock
- Quantity ordered (larger runs = lower per-piece cost)
- Color coverage and coating
- Single-sided vs. double-sided printing
A 6×9 postcard at 5,000 pieces typically costs $0.07–$0.12/piece printed.
Mailing List Cost
- List type (consumer, business, property, occupant)
- Number of demographic selects applied
- Record count
- One-time vs. multi-use license
Consumer lists run ~$30–$75/thousand. B2B and specialty lists run $50–$150+/thousand.
Mail Processing Cost
- CASS certification and address standardization
- NCOA update (removes moved/undeliverable addresses)
- Deduplication (removes duplicate records)
- Variable data printing and addressing
- Pre-sorting by carrier route for postage discounts
Processing typically adds $3–$12 per thousand pieces — a small cost that protects your entire print and postage spend.
Postage Cost
- EDDM flat rate (~$0.21/piece — no addressing required)
- USPS Marketing Mail / Standard Class ($0.25–$0.33/piece)
- First Class postage ($0.51+/piece, forwarded and returned)
- Presort discounts based on carrier-route sorting level
Postage is billed as 100% pass-through with no markup from Catdi Printing.
Mail Class Comparison
The mail class you qualify for is usually the biggest factor in your postage bill. Here's how the common options stack up. These are realistic ranges to plan with — not a price quote.
| Mail class | Typical cost / piece | Delivery speed | Minimum qty | Best for |
|---|---|---|---|---|
| First-Class postcard | ~$0.56 each (single) | 1–3 business days | None (1+) | Small runs, time-sensitive cards at or under 4.25" x 6" |
| First-Class letter / Marketing-size | ~$0.69+ each (single) | 1–3 business days | None (1+) | Oversized cards (5x7, 6x9) when speed and forwarding matter |
| USPS Marketing Mail (Standard) | ~$0.20–$0.35/piece | 3–10 business days | 200 pieces (500 for presort discounts) | Most bulk targeted campaigns to a mailing list |
| EDDM (Every Door Direct Mail) | ~$0.21/piece (flat) | 3–10 business days | 200 pieces/route | Saturation mailing by carrier route — no list needed |
| Presort (discount on the above) | Lowers Marketing Mail / First-Class rates | Same as base class | Volume + sort-level thresholds | Any qualifying bulk job — we presort automatically |
Verify final postage before printing. USPS rates change, and your exact size and thickness can bump a card into a higher class. We confirm the real class and rate on your actual artwork before anything goes to press — so you never pay for a surprise.
Postcard Postage by Size
Size is the single biggest thing that controls your postcard postage. Stay at or under the postcard limit and you get the lowest rate; go bigger and you move into letter or Marketing Mail rates. Here's how our most-ordered sizes typically map out.
| Postcard size | Likely postage class | What it means |
|---|---|---|
| 4 x 6" | Lowest USPS postcard rate | Meets the postcard size limit — qualifies for the cheapest First-Class postcard stamp rate. |
| 5 x 7" | First-Class letter / Marketing Mail | Just over the postcard limit, so it's mailed at letter rates (or Marketing Mail in bulk). |
| 8.5 x 5.5" | First-Class letter / Marketing Mail | Popular oversized format. Letter/Marketing Mail rates apply — strong mailbox presence. |
| 6 x 9" | First-Class letter / Marketing Mail | Above the postcard limit; commonly mailed as Marketing Mail in bulk for the best per-piece postage. |
| 6 x 11" | Marketing Mail (often EDDM flat) | Large flat. Frequently run as EDDM at the flat ~$0.21/piece rate when targeting whole carrier routes. |
Bottom line: a 4x6 card can hit the cheapest postcard rate, while 5x7, 6x9, and 6x11 get letter or Marketing Mail rates. Bigger isn't bad — oversized cards stand out and often lift response — but you should decide with the real postage difference in front of you.
Postage is usually the biggest cost
On most campaigns, postage costs more than the printing, the list, and the processing combined. A small swing in mail class — say, slipping from postcard rate to letter rate — can move your whole budget by thousands of dollars across a large run. That's why we plan postage first, then build everything else around it.
Verify before you print
USPS rates change, and a quarter-inch of size or a hair of extra thickness can push your card into a pricier class. The worst time to find that out is after 10,000 cards are printed. We confirm the exact class and rate on your real, final artwork — so the postage you're quoted is the postage you pay.
How Catdi Printing estimates postage
Give us your size, quantity, target area, and mail class and we'll run a real postage estimate — not a guess off a chart. You can start instantly with our live calculator or have us build a full itemized quote. Either way you see the postage number before you commit a single dollar to print.
Get a real postage estimate before you commit
Most printers only publish a static rate table. We give you a live estimate built around your actual size, quantity, and mail class — so you can see your real postage instantly, then dial in the rest. It's the honest way to budget a campaign.
Why Postage Is Billed as Pass-Through
Some mail vendors mark up postage as a profit center. At Catdi Printing, postage is billed as a direct pass-through — 100% at the USPS rate, with zero markup.
This matters because postage is often the largest single cost in a direct mail campaign. You'll see it as a separate line item on your invoice, billed exactly at what USPS charges. Our revenue comes from printing, processing, and service — not from inflating your postage.
How to Lower Mailing Costs
Tighten your geography — the biggest Standard-rate lever
On USPS Marketing Mail, the deepest postage savings come from how tightly your addresses cluster, not the stamp. Concentrating a mailing so it hits high-density (125+ pieces per carrier route) or saturation levels earns the lowest Enhanced Carrier Route rates — which is also why EDDM is the cheapest option of all. Fewer, denser ZIP codes usually beat scattering the same quantity wide.
Print higher quantities
The per-piece printing cost drops significantly as quantity increases. Going from 1,000 to 5,000 pieces can cut printing cost by 30–40%.
Use USPS Marketing Mail instead of First Class
Unless you need 3–7 day delivery or address forwarding, Standard Class saves $0.20–$0.25 per piece on postage.
Use EDDM for saturation campaigns
EDDM's flat postage rate eliminates mailing list costs, addressing costs, and individual permit fees — the most efficient option when demographics don't matter.
Pre-sort your mail — always
Catdi Printing pre-sorts every campaign to earn the maximum USPS presort discount. This is included in our standard service.
Clean your list with NCOA before printing
Removing undeliverable addresses before printing means you don't waste printing and postage dollars on mail that won't deliver. NCOA processing pays for itself quickly.
Use a smaller mail piece size
Dropping from a 6×11 EDDM flat to a 6×9 postcard can save on both printing and in some cases postage weight thresholds. We'll help you find the best size for your budget.
Get an Itemized Quote Before You Commit
Tell us your target area, quantity, and mail piece type. We'll break down printing, list, processing, and postage costs — line by line — so you know exactly what you're paying for.
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