How much to mail letter weighing 4oz's in nc?

As of my last knowledge update in October 2023, mailing a letter weighing 4 ounces within North Carolina using First-Class Mail would typically cost around $1.20 to $1.40, depending on the specific service and any additional features like tracking or insurance. For the most accurate and current rates, it's best to check the United States Postal Service (USPS) website or visit a local post office.