| Post Office | Service Dates | Zip | Latitude | Longitude | Precancel | Territorial |
|---|---|---|---|---|---|---|
| Augusta | 1842-Present | 63332 | 38.572767 | 90.881471 | x | |
| Black Walnut | 1875-1908 | |||||
| Bluff City | 1888-1888 | |||||
| Bluffton | 1846-1846 | |||||
| Boschertown | 1879-1881 | |||||
| Cappeln | 1870-1907 | |||||
| Cottleville | 1843-Present | 63338 | 39.346477 | 90.936205 | x | |
| Dardenne | 1816-1818, 1820-1842, 1875-1913 | x | ||||
| Dardenne Bridge | 1827-1833 | |||||
| Defiance | 1893-Present | 63341 | 38.661557 | 90.830231 | x | |
| Eagle Creek | 1825-1833 | |||||
| Elm Point | 1889-1891 | |||||
| Femme Osage | 1816-1818, 1828-1833, 1839-1908 | x | ||||
| Firma | 1901-1924 | |||||
| Flint | 1880-1881 | |||||
| Flint Hill | 1836-Present | 63346 | 39.27424 | 91.579843 | ||
| Foristell | 1873-Present | 63348 | 38.762557 | 90.934328 | x | |
| Gallatin | 1834-1837 | |||||
| Gilmore | 1884-1959 | |||||
| Hamburg | 1851-1941 | |||||
| Harvester | 1881-1901 | |||||
| Hickory Grove | 1854-1860 | |||||
| Hoeberville | 1879-1914 | |||||
| Howell | 1900-1917 | |||||
| Josephville | 1875-1910 | |||||
| Klondike | 1898-1943 | |||||
| Machens | 1895-1956 | |||||
| Manor | 1840-1841 | |||||
| Matson | 1893-1971 | |||||
| Mc Connell’s | 1827-1829E | |||||
| Missouriton | 1833-1880 | |||||
| Naylor’s Store | 1827-1840, 1841-1868 | |||||
| New Melle | 1850-Present | 63365 | 39.188103 | 91.292984 | ||
| O’Fallon | 1859-Present | 63366 | 38.800101 | 90.720159 | x | |
| Oakwood | 1858-1865 | |||||
| Orchard Farm | 1894-1953 | |||||
| Peruque | 1888-1979 | |||||
| Pitman | 1824-1827E | |||||
| Plum Grove | 1831-1831 | |||||
| Pomona | 1851-1854 | |||||
| Pond Fort | 1821-1823, 1840-1841 | x | ||||
| Portage des Sioux | 1819-1827, 1833-1847, 1857-1867, 1871-Present | 63373 | 38.927629 | 90.353115 | x | |
| Saint Charles | 1806-Present | 63301 | 38.801424 | 90.506503 | x | x |
| Saint Peters | 1841-Present | 63376 | 38.78024 | 90.622765 | x | |
| Schluersburg | 1862-1908 | |||||
| Six Mile House | 1875-1880 | |||||
| Stockland | 1833-1833, 1835-1839 | |||||
| War Eagle | 1879-1884 | |||||
| Weldon Spring | 1875-1957 | |||||
| Wentzville | 1859-Present | 63385 | 38.801963 | 90.85344 | x | |
| West Alton | 1895-Present | 63386 | 38.875796 | 90.238363 | x | |
| Wilkie | 1894-1894 |
Updated: 12/29/2013 14:18:01