Farmington is a city in Van Buren County, Iowa, United States.

[7] Farmington has suffered from several major floods of the Des Moines River, most notably in 1993, when a "500-year-flood" caused major damage to the buildings near the river, including a one-block area bordered by Walnut, Second, and Third Streets.

Farmington is located on the left (east) bank of the Des Moines River.

According to the United States Census Bureau, the city has a total area of 0.47 square miles (1.22 km2), all land.

There were 305 housing units at an average density of 659.5 per square mile (254.6/km2).

There were 337 housing units at an average density of 717.0 per square mile (276.8/km2).

39.5% of all households were made up of individuals, and 22.8% had someone living alone who was 65 years of age or older.

There were 356 housing units at an average density of 754.6 per square mile (291.4/km2).

38.8% of all households were made up of individuals, and 24.5% had someone living alone who was 65 years of age or older.

[13] It was previously in the Harmony Community School District,[14] until it merged into Van Buren County CSD on July 1, 2019.