---
type: faq
title: "What size postcard is cheapest to mail through USPS?"
description: "The cheapest postcard to mail through USPS is one that fits the First-Class Mail postcard rate, which is the lowest postage tier available. To qualify, the car"
resource: https://www.4over4.com/faqs/postcards/what-size-postcard-is-cheapest-to-mail-through-usps
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What size postcard is cheapest to mail through USPS?

The cheapest postcard to mail through USPS is one that fits the First-Class Mail postcard rate, which is the lowest postage tier available. To qualify, the car

Part of the **Marketing Materials** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/postcards/what-size-postcard-is-cheapest-to-mail-through-usps