The current population is 174,035 people and the area is 397 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 Office Service
Acme
1882-1900
Arley
1893-1907
Aurora
1838-1839
Avondale
1915-Present
Barry
1834-1906
Bethany
1844-1848
Birmingham
1888-1956
Blue Eagle
1866-1887
Cantonment Leavenworth
1828-1841
Chandler
1885-1947
Clay Court House
1822-1829
Claytonville
1870-1893
East Kansas City
1920-1928
Elm Grove
1833-1849
Excelsior Springs
1883-Present
Fort Leavenworth
1841-UNK
Gashland
1899-1959
Gladstone
1957-1959
Harlem
1866-1913
Hartsburg
1838-UNK
Holt
1869-Present
Jedds
1884
Kearney
1868-Present
Kendall
See details
Liberty
1829-Present
Liberty Landing
1871-1873
Linden
1889-1957
Post Office Service
Lindenman
1887-1891
Maple Park
1922-1935
Martinsville
1837-1839
Miltondale
1895-1906
Minaville
See details
Missouri City
1867-Present
Mosby
1887-2005
Moscow
1874-1904
Narona
1900-1903
Nashua
1890-1962
North Kansas City
See details
Owensville
1839-1844
Paradise
1858-1863, 1865-1907
Platte
1836-1840
Prathersville
1876-1904
Prospect Hill
1864-1890
Randolph
1844-1852, 1887-1920
Richfield
1836-1837
Saint Bernard
1853-1857
Smithville
1844-Present
Sugar Tree Grove
1863-1867
Thornton
1888-1904
Viginti
1881-1883
Weston
1838-1841
Winner
1891-1900
Winnwood
1922-1923
Woodford
1844-1845, 1853-1855
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There are 54 post offices listed for Clay 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 Clay 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: 27 Nov 2009 23:28
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This page, and all contents are Copyright © MCMXCIX-MMIX by
Missouri Postal History Society, St. Louis, Missouri.