The smallest mailable postcard or letter is 3 1/2 by 5 1/2 inches.
For the USPS, it is actually 5 inches x 3.5 inches or vice versa
As of July 2011, the rate is $0.29.
smallest U.S. region in both size and population
To mail a first class international postcard to Canada, you will need to attach $1.10 in postage. The maximum size for a postcard is 6" in length x 4.25" in height.
Alaska is 1/5 the size of the US and has the highest mountains within the US, but it does NOT have the smallest population (Wyoming does). Alaska has the smallest population relative to size (Population density).
The standard size for a postcard in the United States is at least 3 1/2 inches high by 5 inches high. But no more then 4 1/2 inches high by 6 inches long.
Hawaii is neither the smallest state by population nor by size. The smllest state by populate is Wyoming. The smallest state by size is Rhode Island.
3 1/2" x 5" (inches) is the smallest legal mailing size for an envelope in the US.
It did cost $1.10 to mail a postcard in the US in 2003.
9(US)
No, it doesn't. In the US, the smallest (size) state is Rhode Island, yet the state with the smallest population is Wyoming.
the one dollar bill is the smallest denomination. The bills from 1 to 100 dollars are all the same size in measurements.
The current USPS postcard rate from the US to Chile is 94 cents.