Political Postcard Sizes: Best Size and Why It’s Important
Learn the most effective political postcard sizes and why they matter. Compare costs, mailing options, and marketing impact so your next campaign mailer looks professional and reaches the right voters.
Political Postcard Sizes: Best Size and Why It’s Important
Running for office for the first time means learning a great deal quickly. One of the most confusing details? Choosing the right political postcard size. The size you pick impacts your printing cost, postage rate, and visual impact. Let’s break down what works best, when to use it, and how to make your design count.
Why Postcard Size Matters in Campaign Marketing
In political direct mail, size isn’t just about aesthetics — it determines cost per piece, visibility, and mailing classification. A 4×6 postcard might fit your budget, but it could get lost in a pile of glossy flyers. On the other hand, a 9×12 mailer dominates attention but can double your postage cost.
According to the United States Postal Service (USPS), direct mail has a response rate between 4.9%–9%, significantly higher than digital ads, which average below 1%. [1] That means every inch of your postcard is valuable real estate and getting the format right can make the difference between being noticed or tossed.
Common Political Postcard Sizes
Here are the most popular sizes for political campaigns in the U.S., along with their recommended uses and typical mailing costs.
Size
Type / USPS Category
Best For
Average Printing Cost (per 500)
Postage Rate (per piece)
4×6 in.
Standard Postcard
Budget mailings, early introductions
$50–$75
$0.56 (First-Class)
5×7 in.
Large Postcard
Name recognition, volunteer outreach
$60–$90
$0.68
6×9 in.
Oversized Postcard
Fundraising appeals, issue awareness
$75–$100
$0.78
6×11 in.
Every Door Direct Mail (EDDM) size
Mass outreach without a mailing list
$85–$120
$0.25–$0.30 (EDDM bulk)
9×12 in.
Jumbo Mailer
Final push before Election Day
$110–$150
$0.80–$1.00 (depending on weight)
(Estimates based on 2024 USPS rates and standard color printing averages. Rates subject to USPS annual updates; check current rates at usps.com). [2]
Which Size Is Right for Your Campaign?
Each size serves a strategic purpose:
4×6 Postcards: Keep It Simple
Best for low-budget campaigns or early awareness. Use these for “Meet the Candidate” mailings or community introductions. Perfect for “handwritten” personal notes. You can also hand them out at events or leave them at local businesses.
💡 Tip: Keep text short and visuals clean — think photo, name, slogan, and website.
5×7 and 6×9 Postcards: The Sweet Spot
These are the most common political mailers. They strike the perfect balance between cost and impact. The 6×9 especially stands out in a mailbox but doesn’t require oversized postage.
If you’re mailing to a targeted voter list, these are ideal. You’ll have room for a professional headshot, bullet points on issues, and a strong call-to-action (like “Vote by November 5”).
6×11 EDDM Mailers: For Campaigns Without a Mailing List
If you don’t have a voter file or mailing list yet — don’t panic. You can use Every Door Direct Mail (EDDM) to send campaign pieces to every household in a chosen zip code or carrier route. While 4×6 cards have the lowest printing cost per piece, 6×11 Every Door Direct Mail cards are often the most cost-effective per impression because they qualify for the lowest bulk postage rates.
The 6×11 postcard is the sweet spot for EDDM:
Qualifies for bulk postage (~$0.27 per piece)
No mailing list required
Delivers to entire neighborhoods
EDDM is perfect for new candidates or local races where name recognition is key.
9×12 Jumbo Mailers: Make a Statement
These oversized pieces work best for the final stretch of a campaign when visibility is everything. Think of them as mini billboards in the mailbox. Use them for your “Vote Now” or “Thank You” messages.
They’re more expensive, but in a crowded race, the visual dominance often justifies the cost.
Who Prints Political Postcards — and Do They Mail Them for You?
Most political print vendors handle both printing and mailing. If you’re using an EDDM-approved size, many online printers (like VistaPrint, GotPrint, or PrintRunner) will even handle the EDDM paperwork for you.
If you’re ordering smaller quantities, you can still print locally and handle postage yourself — just make sure your postcard meets USPS thickness and address placement requirements.[3]
💡 Quick Tips for First-Time Campaign Managers
Design for impact. Use bold fonts and a clear hierarchy, your name and position should be the first thing voters see.
Include a call-to-action. Tell voters exactly what to do: visit your site, volunteer, or vote on a specific date.
Leave white space. It helps readability and keeps your card from feeling cluttered.
Be consistent. Use the same logo, colors, and slogan across all your materials — this builds recognition.
Track results. Use unique URLs or QR codes to measure engagement.
Final Thoughts
Choosing the right political postcard size isn’t just about postage, it’s about strategy. Start small for awareness, grow into larger sizes for visibility, and use EDDM when you’re ready to scale.
You can follow along on Instagram @DesignWithJackson where I share short videos on how to make your campaign templates stand out, even on a tight budget.
And when you’re ready to create your own editable Canva templates for rack cards, palm cards, and political mailers, visit my Etsy Shop, DesignwithJackson to get started.
💡 Want to learn how to design a campaign rack card that gets results? Check out my post on how to design a winning political campaign palm card. It walks you through layout tips, key elements, and how to make your design look professional even on a tight budget.
References
United States Postal Service (USPS) 2024 Household Diary Study, Table 4-2.
