Waltham, Massachusetts

Waltham (/ˈwɔːlθæm/ WAWL-tham) is a city in Middlesex County, Massachusetts, United States, and was an early center for the labor movement as well as a major contributor to the American Industrial Revolution. The original home of the Boston Manufacturing Company, the city was a prototype for 19th century industrial city planning, spawning what became known as the Waltham-Lowell system of labor and production. The city is now a center for research and higher education, home to Brandeis University and Bentley University as well as industrial powerhouse Raytheon Technologies. The population was 65,218 at the census in 2020.[2]

Waltham, Massachusetts
City Hall
The Watch City
Location in Middlesex County in Massachusetts
Waltham, Massachusetts
Location in the United States
Coordinates: 42°22′35″N 71°14′10″W
Country United States
State Massachusetts
RegionNew England
Incorporated as a Town1738
Incorporated as a City1884
  TypeMayor-council city
  MayorJeannette A. McCarthy
  Total13.76 sq mi (35.64 km2)
  Land12.74 sq mi (33.01 km2)
  Water1.02 sq mi (2.63 km2)
50 ft (15 m)
  Density5,117.95/sq mi (1,975.99/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (Eastern)
ZIP Codes
Area code339/781
FIPS code25-72600
GNIS feature ID0612400

Waltham has been called "watch city" because of its association with the watch industry. Waltham Watch Company opened its factory in Waltham in 1854 and was the first company to make watches on an assembly line. It won the gold medal in 1876 at the Philadelphia Centennial Exposition. The company produced over 35 million watches, clocks and instruments before it closed in 1957.[3]

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