Vernon is the most populous town in Tolland County, Connecticut, United States. The population was 30,215 at the 2020 census. Vernon contains the smaller villages of Talcottville and Dobsonville. Vernon contains the former City of Rockville. History Vernon was incorporated in October 1808, from Bolton. Vernon was named after George Washington's Mount Vernon estate. Vernon contains the former city of Rockville, incorporated in January, 1889 and consolidated in January 1965. Geography According to the United States Census Bureau, the town has a total area of , of which is land and (1.88%) is water. Demographics At the 2000 census, there were 28,063 people, 12,269 households and 7,275 families living in the town. The population density was . There were 12,867 housing units at an average density of . The racial makeup of the town was 89.95% White, 3.99% African American, 0.24% Native American, 2.65% Asian, 0.04% Pacific Islander, 1.22% from other races, and 1.91% from two or more races. Hispanic or Latino of any race were 3.58% of the population. There were 12,269 households, out of which 26.5% had children under the age of 18 living with them, 45.3% were married couples living together, 10.5% had a female householder with no husband present, and 40.7% were non-families. 33.0% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.90. 22.1% of the population was under the age of 18, 7.7% from 18 to 24, 32.4% from 25 to 44, 23.9% from 45 to 64, and 13.9% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 91.6 males. For every 100 females age 18 and over, there were 89.1 males. The median income for a household in the town was $47,816, and the median income for a family was $59,599. Males had a median income of $43,620 versus $31,515 for females. The per capita income for the town was $25,150. About 4.1% of families and 5.9% of the population were below the poverty line, including 7.9% of those under age 18 and 6.1% of those age 65 or over. City of Rockville Most of Rockville has been designated as part of the Rockville Historic District. The district is roughly bounded by Shenipsit Street, Davis Avenue, West