One.
One if it is enough postage.
One. A standard .44¢ postage stamp.
Ask at a post office in USA !
One .42 cent stamp
One if it is for the correct amount or greater in postage.
Stamps are not based on distance, but rather on weight. Therefor, 1 stamp should be plenty of postage for a standard letter.
Postage is based on weight, not distance. A one ounce letter is one stamp.
The number of stamps a person needs to mail a letter from Virginia to Hawaii will depending on the size of the package. A person should bring their letter to the post office in their city for the correct postage.
For a first class letter of one ounce, as many as it takes to add up to 98 cents of postage.
All you need is ONE first class postage stamp. Provided that it's only a letter.
For a first class letter of one ounce within the US, as many as it takes to add up to 98 cents of postage.
One first class postage stamp will mail a letter from any place in the US to any other place in the US, regardless of the distance.