What is the smallest size envelope the post office will allow in the US?

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2007-01-27 13:58:49 · 3 answers · asked by Anonymous in Local Businesses ➔ Other - Local Businesses

3.5in.x5in.

2007-01-27 14:10:17 · answer #1 · answered by ThinkaboutThis 6 · 0⤊ 0⤋

The smallest I've seen is about the size of a CD.

2007-01-31 15:22:16 · answer #2 · answered by Johnny 5 · 0⤊ 0⤋

I think as long as it can hold a stamp and a readable address you are alright.

2007-01-27 22:02:50 · answer #3 · answered by pink kitty 2 · 0⤊ 0⤋