- Location: St. Francois County, Missouri
- Legal status: Third-class city
- Population: 13,924 (Change since 1990: +20.1%)
- Founded: 1822
- Name origin: Agriculture
- Previously known as: Murphy's Settlement and St. Francois Court House
- Located along US 67 between Park Hills and Fredericktown
- Latitude: 37°46'55" N (+37.7819)
- Longitude: 90°25'20" W (-90.4221)
- Elevation: 918 feet above sea level
- Civil township: St. Francois
- Land area: 9.0 square miles
- Water area: 0.04 square miles (28.0 acres)
As the crow flies, Farmington is...
Name origin
Presumably named for the agricultural economy, even
though farming wasn't nearly as important as mining at the time
Previous names
Farmington was originally called Murphy's Settlement for William Murphy of Kentucky who
first visited the site in 1798. When St. Francois County was organized,
the town was briefly called St. Francois Court House and then
renamed to Farmington.
Timeline
- 1798
- William Murphy explored the area and obtained permission from Spanish authorities to bring his family from Kentucky and establish a settlement.
- ca. 1800
- After William's death, his wife Sarah Barton Murphy established Murphy's Settlement.
- 1817
- Post office opened.
- 1822
- David Murphy donated 52 acres of land for the establishment of the county seat of St. Francois County.
- 1825
- The name Farmington selected for the town.
- 1836
- Farmington incorporated
- 1879
- Farmington achieved fourth-class city status.
- 1901
- St. Francois Electric Railway Co. opened a trunk railroad line to Farmington.
- 1981
- Farmington became a third-class city.
| Year | Population | Percent change |
|---|
| 1900 | 1,778 | -- |
| 1910 | 2,613 | +47.0% |
| 1920 | 2,685 | +2.8% |
| 1940 | 3,738 | +39.2% |
| 1950 | 4,490 | +20.1% |
| 1960 | 5,618 | +25.1% |
| 1970 | 6,590 | +17.3% |
| 1980 | 8,270 | +25.5% |
| 1990 | 11,598 | +40.2% |
| 2000 | 13,924 | +20.1% |