- Location: Mississippi County, Arkansas
- Legal status: City
- Population: 18,272 (Change since 1990: -20.2%)
- Founded: 1880 by Henry T. Blythe
- Name origin: Henry T. Blythe
- Latitude: 35°55'38" N (+35.9272)
- Longitude: 89°55'08" W (-89.9189)
- Elevation: 259 feet above sea level
- Civil township: Chickasawba
- Land area: 20.6 square miles
- Water area: 0.06 square miles (38.1 acres)
As the crow flies, Blytheville is...
Name origin
Named for Rev. Henry T. Blythe, founder
| Year | Population | Percent change |
|---|
| 1900 | 302 | -- |
| 1910 | 3,849 | +1174.5% |
| 1920 | 6,447 | +67.5% |
| 1930 | 10,098 | +56.6% |
| 1940 | 10,652 | +5.5% |
| 1950 | 16,234 | +52.4% |
| 1960 | 20,797 | +28.1% |
| 1970 | 24,752 | +19.0% |
| 1980 | 23,844 | -3.7% |
| 1990 | 22,906 | -3.9% |
| 2000 | 18,272 | -20.2% |