County seats are displayed in UPPER CASE. Note: Information about zip codes, territorials, markings, etc. have been moved to detail pages for places that have links.
| Post Office | County | Dates of Service |
|---|---|---|
| Zadock | Stoddard | 1891-1916 |
| Zalma | Bollinger | 1890-Present |
| Zanoni | Ozark | 1898-1927, 1930-Present |
| Zaring | Camden | 1899-1909 |
| Zealot | Saint Clair | 1880 |
| Zebra | Camden | 1886-1935 |
| Zeitonia | Wayne | 1887-1906 |
| Zell | Ste. Genevieve | 1881-1922 |
| Zenar | Webster | 1900-1909 |
| Zenda | Douglas | 1900-1910 |
| Zephyr | Bollinger | 1908-1911 |
| Zero | Laclede | 1886 |
| Zeta | Stoddard | 1895-1896, 1907-1936 |
| Zettonta | Wayne | 1887-1906 |
| Zif | Stoddard | 1860-1864 |
| Zig | Adair | 1870-1908 |
| Zinc | Benton | 1900 |
| Zincite | Jasper | 1885-1918 |
| Zion | Henry | 1856-1862, 1868 |
| Zion | Madison | 1880-1921, 1930-1964 |
| Zoar | Gasconade | 1898-1901 |
| Zodiac | Vernon | 1882-1914 |
| Zola | Schuyler | 1891-1904 |
| Zonker | Douglas | 1893-1896 |
| Zora | Benton | 1887-1931 |
| Zulu | Vernon | 1885-1886 |
| Zuray | Shelby | 1894 |
| Zwanzig | Morgan | 1892-1901 |
28 Post Offices entered in the letter “Z”
| <--- Back to Y Post Offices |
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Updated on 20 Aug 2007 20:58:59.
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Missouri Postal History Society, St. Louis, Missouri.