Farmington is a town in Kent County, Delaware, United States.

[4] Farmington was originally settled as Flatiron in 1855 when the railroad built a station at a crossroads at this location.

[5] The Tharp House was listed on the National Register of Historic Places in 1973.

[7] Farmington is currently served by the Greenwood post office with a ZIP code of 19950.

According to the United States Census Bureau, the town has a total area of 0.1 square miles (0.26 km2), all land.

There were no families and 7.0% of the population living below the poverty line, including no under eighteens and none of those over 64.

U.S. Route 13 passes north–south just beyond the eastern edge of Farmington on Dupont Highway and leads north toward Harrington and south toward Greenwood.