Palmer is a city in Hampden County, Massachusetts, United States. The population was 12,448 at the 2020 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. Palmer adopted a home rule charter in 2004 with a council-manager form of government. Palmer is one of thirteen Massachusetts municipalities that have city forms of government but retain “The town of” in their official names.

The villages of Bondsville, Thorndike, Depot Village, and Three Rivers are located in Palmer.

Palmer is composed of four separate and distinct villages: Depot Village, typically referred to simply as “Palmer” (named for the ornate Union Station railroad terminal designed by architect Henry Hobson Richardson), Thorndike, Three Rivers, and Bondsville. The villages began to develop their distinctive characters in the 18th century, and by the 19th century two rail lines and a trolley line opened the town to population growth. Today, each village has its own post office, and all but Thorndike have their own fire station.

Palmer was originally a part of Brimfield but separated after being too far from Brimfield. Palmer’s first settler was John King. King was born in Edwardstone, Suffolk, England, and built his home in 1716 on the banks of the Quaboag River. The area as then known was called “The Elbow Tract”. In 1731, a deed to land in today’s Palmer renamed the town ‘New Marlborough’ after Marlborough, Massachusetts, in today’s Middlesex County. In 1731, residents of the borough renamed the town ‘Kingsfield’, after the aforementioned John King. Though in some papers in the Massachusetts General Court, it was referred to as the Elbow. A large group of Scots-Irish Presbyterians followed, arriving in 1727. Finally in 1752, it was named Palmer after Chief Justice Palmer. In 1775, Massachusetts officially incorporated Palmer.

Depot Village became Palmer’s main commercial and business center during the late 19th century and remains so today. Palmer’s industry developed in Bondsville. During the 18th century, saw and grist mills were established by the rivers, and by 1825 Palmer woolen mills began to produce textiles. The Blanchard Scythe Factory, Wright Wire Woolen Mills, and the Holden-Fuller Woolen Mills developed major industrial capacity, and constructed large amounts of workers’ housing. By 1900, Boston Duck (which made heavy cotton fabric) had over 500 employees in the town. The 20th century brought about a shift of immigrants in Palmer from those of French and Scottish origin to those of primarily Polish and French-Canadian extraction.

According to the United States Census Bureau, Palmer has a total area of 32.0 square miles (82.9 km), of which 31.5 square miles (81.7 km²) are land and 0.5 square mile (1.3 km) (1.53%) is water. The city is bordered by Ludlow and Wilbraham on the southwest, Belchertown on the northwest, Ware on the northeast, Warren on the east, Brimfield on the southeast, and Monson on the south.

As of the census of 2000, there were 12,497 people, 5,078 households, and 3,331 families residing in the town. The population density was 396.3 inhabitants per square mile (153.0/km²). There were 5,402 housing units at an average density of 171.3 per square mile (66.1/km). The racial makeup of the town was 96.82% White, 0.75% Black or African American, 0.23% Native American, 0.56% Asian, 0.44% from other races, and 1.19% from two or more races. Hispanic or Latino of any race were 1.23% of the population.