The Farmington Historic District encompasses much of the main central business district of Farmington, Maine. Farmington was settled in the 1770s, and experienced its most rapid growth after being named the shire town (county seat) of Franklin County in 1838, with a secondary spurt of redevelopment after a major fire in the 1880s. Its central business district encompasses many of the town's historic resources, and its most significant commercial and civic architecture. The district, which includes more than 130 resource over 85 acres (34 ha), was listed on the National Register of Historic Places in 1995.