Barre is a census-designated place (CDP) in the town of Barre in Worcester County, Massachusetts, United States. The population was 1,009 at the 2010 census.GeographyBarre /ˈbæri/ is located at .According to the United States Census Bureau, the CDP has a total area of 4.2 km², all land.DemographicsAs of the census of 2000, there were 1,150 people, 463 households, and 285 families residing in the CDP. The population density was 274.1/km² (710.7/mi²). There were 487 housing units at an average density of 116.1/km² (301.0/mi²). The racial makeup of the CDP was 96.78% White, 0.52% Black or African American, 0.35% Native American, 0.43% Asian, 0.70% from other races, and 1.22% from two or more races. Hispanic or Latino of any race were 0.96% of the population.There were 463 households out of which 31.5% had children under the age of 18 living with them, 48.2% were married couples living together, 10.4% had a female householder with no husband present, and 38.4% were non-families. 31.7% of all households were made up of individuals and 15.8% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 3.18.