TORONTO - It costs two cents more to mail a letter today within North America.

The cost of mailing a first-class letter within Canada is now 61 cents and letters to the United States now cost $1.05.

Letters to overseas destinations jump a nickel to $1.80.

Canada Post says the increases are part of a five-year pricing strategy initially announced in 2009.

The rate hikes come as more Canadians rely on email, texting, Facebook, Twitter and other electronic communications.

During last June's rotating strikes by postal workers followed by a 10-day lockout, Canada Post said letter volumes had dropped 17 per cent over the past five years.