Dates of post office operation:
| Zip Code | 63620 | Location | 83.3 miles SW of St Louis | Latitude | 37.39809 | Longitude | 90.670235 | Map from US Census | <a href="http://tiger.census.gov/cgi-bin/mapgen?lat=37.39809&lon;=-90.670235&wid;=.25&ht;=.25&iht;=400&iwd;=600&ml |
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