Old State Route 21 Arnold is located at 38.447891, -90.451149 geo coordinates. Old State Route 21, Arnold, MO 63010 is located in Missouri, Arnold, United States Of America. Postal code is: 63010
| Latitude | Longitude |
|---|---|
| 38.447891 | -90.451149 |
| DMS Latitude | DMS Longitude |
|---|---|
| 38° 26´ 52.4076'' N | 90° 27´ 4.1364'' W |