- Located at junction AR 34 and AR 90 in the far southeast corner
of the county
- Latitude: 36°10'09" N (+36.1692)
- Longitude: 90°48'51" W (-90.8142)
- Elevation: 271 feet above sea level
- Civil township: O'Kean
- Land area: 1.0 square miles
As the crow flies, O'Kean is...
| Year | Population | Percent change |
|---|
| 1920 | 205 | -- |
| 1930 | 184 | -10.2% |
| 1940 | 138 | -25.0% |
| 1950 | 165 | +19.6% |
| 1960 | 137 | -17.0% |
| 1970 | 244 | +78.1% |
| 1980 | 291 | +19.3% |
| 1990 | 250 | -14.1% |
| 2000 | 201 | -19.6% |