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 |
|---|---|---|
| Yancey | Phelps | 1861-1870 |
| Yancey Mills | Phelps | 1870-1954 |
| Yankee Doodle | Howell | 1873-1876 |
| Yankee Ridge | Harrison | 1872-1880 |
| Yankeetown | Saint Francois | 1827 |
| Yarbor | Pulaski | 1889-1895 |
| Yarrow | Adair | 1904-1919 |
| Yates | Randolph | 1882-1954 |
| Yatesville | Randolph | 1879-1882 |
| Yeager | Benton | 1895-1898 |
| Yeagerville | Scotland | 1878 |
| Yeakley | Greene | 1879-1903 |
| Yellow Creek | Chariton | 1838-1857 |
| Yingst | Lawrence | 1883-1895 |
| Yolo | Gentry | 1855-1868 |
| Yolo | Henry | 1900-1901 |
| York | Atchison | 1878-1901 |
| Young Hickory | Polk | 1853 |
| Young’s Mills | Franklin | 1858-1867 |
| Youngers | Boone | 1839-1856, 1862, 1872-1902 |
| Youngers | Callaway | 1902-1908 |
| Youngs Creek | Audrain | 1855-1905 |
| Youngstown | Adair | 1903-1942 |
| Younts | Perry | 1887-1954 |
| Younts Store | Perry | 1872-1887 |
| Yucatan | Callaway | 1892-1908 |
| Yukon | Texas | 1899-2003 |
| Yuma | Putnam | 1892-1903 |
28 Post Offices entered in the letter “Y”
| <--- Back to X Post Offices | Next to Z Post Offices ---> |
Updated on 26 May 2008 22:18:57.
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Missouri Postal History Society, St. Louis, Missouri.