In August 2014, the price of a First-Class postage stamp to Iraq is $1.15 for a letter-sized envelope. If the address in Iraq is an APO or U.S. military base, the price is the normal rate for domestic First-Class mail, or 49 cents.
The postage rate above is for anything up to 1 ounce. The price increases by weight up to a maximum weight for a letter of 3.5 ounces with $3.64 postage. Coins, banknotes, currency notes, securities payable to bearer, travelers checks, gold, silver, platinum, precious stones, jewelry and other valuable articles cannot be mailed to Iraq by the U.S. Postal Service.