Overview
Our 4" x 6" printed postcards are the most affordable and widely accepted size for USPS First Class Mail, making them perfect for high-volume campaigns on a budget. Their compact size ensures your message is seen immediately — no envelope to open, just bold, full-color messaging on both sides.
Typical Use Cases:
- Limited-Time Offers: Quick promos, discount codes, or flash sale alerts.
- Event Reminders: Last-minute “Don’t forget!” mailers for fundraisers, community gatherings, or open houses.
- Donor Thank-Yous: Short appreciation notes to acknowledge contributions and keep relationships warm.
- Seasonal Greetings: Holiday or milestone cards to maintain regular touchpoints.
- Local Awareness Campaigns: Neighborhood service announcements or grand opening invitations.
Design Dimensions


Product Specs
Quick Reference
- Full Bleed Size: 4.2” x 6.2”
- Trim Zone: 4” x 6”
- Safe Zone: 3.7” x 5.7”
Download the Design Template
Click below to access the Canva template for this 4"x6" postcard. It includes pre-set trim zones, safe area guides, and address placement — so you can design confidently without starting from scratch.

Need Help?
Not sure how to format your postcard for print? Contact our team — we’ll make sure your design is USPS-compliant and looks amazing in mailboxes.