Question: how many stamps do i need to send a letter to colorado?
Answer: One 49 cent stamp is all you need for a standard size envelope containing four or less pieces of folded A4 size parer. The USPS issues stamps with the word “forever” printed on them. These stamps may fluctuate in purchase price but one is good enough for you to use. 1 stamp first class postage for letters under 1 oz.