Bolton is a town located in the U.S. state of Massachusetts. It is within Worcester County approximately 25 miles west-northwest of downtown Boston. It has a total area of 20.0 square miles at 42°26′00″N 71°36′30″W. The elevation is 387 feet above sea level. In 1682, Bolton was settled and then become incorporated in 1738. As of the 2010 census data, it had a total population of 4,897. The population density was 240/sq mi. Estimated per capita income in 2016 was $64,336. Recent job growth is positively increased by 1.52 percent. The average travel time is 28 minutes. It has Zip code 01740.