Farmington is an unincorporated town in Graves County, Kentucky, United States. Farmington is located 7 miles (11 km) southeast of Mayfield and 13 miles (21 km) west of Murray. The zip code for Farmington is 42040 and has a population within the zip code of 1,160 people. Since 2000, it has had a population growth of 2.62 percent.
Farmington was home to the Farmington High School until 1983 when all of the regional high schools of the area combined to form Graves County High School. Farmington Elementary School is located near central Farmington. Farmington Elementary School is ranked amongst the highest in the state, receiving a National Blue Ribbon award in 2007. Farmington Elementary School spend $4,477 per student. The average school expenditure in the U.S. is $6,058. There are about 18 students per teacher in Farmington.