Leominster ( LEM-ən-stər) is a city in Worcester County, Massachusetts, United States. It is the second-largest city in Worcester County, with a population of 43,782 at the 2020 census. Leominster is located north of Worcester and northwest of Boston. Both Route 2 and Route 12 pass through Leominster. Interstate 190, Route 13, and Route 117 all have starting/ending points in Leominster. Leominster is bounded by Fitchburg and Lunenburg to the north, Lancaster to the east, Sterling and Princeton to the south, and Westminster to the west.

The region was originally inhabited by various divisions of the Pennacook or Nipmuc Native Americans, who lived along the Nashua River. The river provided fertile soil for the cultivation of corn, beans, squash and tobacco. European settlers began arriving in the mid-17th century and in 1653, the area of Leominster – which takes it name from the Herefordshire town of Leominster in England, was first founded as part of the town of Lancaster.

The European settlers and native people lived peacefully for a number of years, until the start of King Philip’s War in 1675. The violent war between the native Indians and early settlers killed hundreds of people and drove off the inhabitants from the area. After the war, Lancaster remained virtually deserted until a new land grant was offered to residents in 1701. To prevent further conflict with the native Indians, the settlers negotiated with Chief Sholan of the Nashaway tribe for the land. It would be the only parcel of land to be legally purchased in Central Massachusetts.

By 1737, the area of Leominster had gained enough residents to be incorporated as a separate town. The town of Leominster was officially incorporated on June 23, 1740.

Around the time of the Civil War, Leominster was a major contributor in the Underground Railroad. The Emory Stearn Schoolhouse and the John Drake home, led anti-slavery campaigns and helped house fugitive slaves.

In Leominster’s early existence, the town was primarily a small farming community, but towards the beginning of the 19th century, the economy quickly shifted into manufacturing. The town became a regional transportation hub around 1800, with the opening of the Fifth Massachusetts Turnpike and the connections of the Union Turnpike and Cambridge and Concord Turnpikes in 1808. However, manufacturing in Leominster was truly made possible by the opening of the Fitchburg Railroad that ran through North Leominster and into Boston, and the Fitchburg and Worcester Railroad that ran through the center of town. By the 1850s, paper mills, piano makers, and comb manufacturers had established factories along the Monoosnoc Brook and Nashua River. While the earliest settlers in Leominster were primarily of British ancestry, many immigrants soon gathered to work in Leominster’s expanding factories. The first group of immigrants was primarily Irish, followed by the French Canadians and the Italians into the early 20th century. These new waves of immigrants caused the population to surge from just 2,069 in 1840 to 19,744 by 1920. On November 2, 1915, Leominster was officially chartered as a city.