Although Massachusetts is a relatively small state, there are significant climatic differences between its eastern and western sections. The entire state has cold winters and moderately warm summers, but the Berkshires in the west have both the coldest winters and the coolest summers.

In 2000, 81.3% of the population five years of age or older (down from 84.8% in 1990) spoke only English at home.

The United States dollar, denoted by USD or the symbol $, is the official currency used in the United States. Commonly referred to as the "American dollar, " the currency is divided into 100 cents (symbol )

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Massachusetts ranked 13th in population in the US with an estimated total of 6, 427, 137 in 2002, an increase of 1.2% since 2000. Between 1990 and 2000, Massachusetts's population grew from 6, 016, 425 to 6, 349, 097, an increase of 5.5%. The population is projected to reach 6.9 million by 2025.

Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States.