Vermont is located in the northeastern region of the United States, with a land area of 24,932 square kilometers and a population of 630,000. The capital city of the state is Montpelier. The area code for Vermont is 802, the zip code is abbreviated VT, and the largest city is Burlington. Because the state is not too large, the main traffic is mainly highways, followed by airports. Burlington International Airport (BTV) is a major civilian airport in the state, with many small aircraft operating here, as well as cargo flights. The postcodes for the major cities are as follows: Rutland is 05701, 05702, Rochester is 05767 and Waterbury is 05676.