6.0% of those under age 18 and 5.3% of those age 65 or over. On the National Register of Historic Places Columbia Green Historic District Notable people Anthony Gregorc, psychologist. Currently resides in Columbia Dwight Loomis (1821–1903), US Congressman and Connecticut Supreme Court judge Alfred Wright (1788–1853), physician, Presbyterian missionary to Choctaw Nation, translator, educator and founder of Wheelock Seminary was born in Columbia See also References External links Town Web site Greater Hartford Towns in Connecticut Towns in Tolland County, Connecticut