Question
What is the standard size for postcards?
Answer
Postcards come in a handful of go to sizes, and the right one usually depends on whether you are mailing at postcard rates or want extra room to stand out in the mailbox.
| Size | Notes |
|---|---|
| 4" x 6" | The most common size, qualifies for USPS postcard postage rates |
| 5" x 7" | Popular for invitations and announcements, mails at first class rates |
| 6" x 9" | Oversized, great for standing out in a stack of mail |
| 6" x 11" | Maximum impact for promotions and menus |
- Square options such as 5" x 5" and 6" x 6" are popular for social first designs
- Custom trim sizes work when a standard size does not fit the layout
- Anything up to 4.25" x 6" can qualify for the lower USPS postcard rate
Match the size to your goal: smaller for cost efficient mailings, larger for visibility.
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