Post Offices in Caldwell County, MO

Caldwell County was established on Dec 29, 1836. The County Seat is Kingston. Caldwell was formed from territory taken from the following counties: Ray

The current population is 8,691 people and the area is 429 sq. mi.

The county seat is displayed in oblique & bold face. Towns that have more than 4 opening/close dates or are current have links to complete information.

Post OfficeService
Black Oak 1868-1904
Bonanza 1881-1903
Braymer 1887-Present
Breckenridge 1860-Present
Catawba 1872-1905
Cowgill 1887-Present
Easterville 1884-1887
Elk Grove 1877-1888
Emmett 1860-Present
Far West UNK-1847
Friendship 1878-1883
Glassville 1876-1887
Gomer 1869-1870
Gould Farm 1876-1905
Post OfficeService
Grand River 1850-1852, 1854-1860
Hamilton 1858-Present
Kerr 1886-1906
Kidder 1860-Present
Kingston 1843-Present
Mirabile 1849-1941
Muddy 1875-1877
Nettleton 1872-1980
Nettletonville 1870-1872
Osterville 1869-1874
Plum Creek 1848-1849
Polo 1868-Present
Proctorville 1868-1901
Vanity 1899-Present
Key to Markings
S Spray Postmarks
PPrecancels Exist
TTerritorial Period
71Cancels from 7-1-71 Affair

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There are 28 post offices listed for Caldwell County.

Post office information from “Missouri Post Offices 1804-1981” ©1982 - Robert G. Schultz. Used with permission of author. Additional info on zip codes, markings and distances come from various members of MOPOHISSOC.

All post offices for Caldwell County have been added to the database.
Note: Researchers only listed for towns that have specific researchers separate from the overall county.

Remember, this site is primarily concerned with POSTAL history and makes no claims regarding genealogical research.

List updated: 11 Feb 2012 15:09

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Missouri Postal History Society, St. Louis, Missouri.