Oklahoma Post Offices
– I –
Present-day County shown in black, if known. If only the Indian Nation or Territorial County has been identified, that name is shown in red.
Updated 2/20/2001
Post Office County/Nation ZIP Code Active Predecessor / Successor Iconium Logan none Unknown
Unknown Ida Lincoln none 1895 - 1904 Unknown Ida McCurtain none 1901 - 1928 Battiest Idabel McCurtain 74745 1904 - From Bokhoma Idelah Oklahoma Unknown Imo Garfield none 1895 - 1922 Unknown Independence Custer none 1892 - 1922 Unknown Indiahoma Comanche 73552 1902 - Active Indianapolis Custer none 1902 - 1949 Unknown Indianola Pittsburg 74442 1891 - Active Inez Pottawatomie none 1898 - 1901 Unknown Ingalls Payne none 1890 - 1907 Unknown Ingersoll Alfalfa none 1901 - 1942 Unknown Ingleton Dewey none 1899 - 1905 Unknown Ingram Lincoln none 1892 - 1908 Unknown Ingram Pontotoc none 1899-1900 To Hart Inola Rogers 74036 1890 - Active Ioland Ellis none 1892 - 1918 Unknown Iona Murray none 1894 - 1929 Unknown Irby McIntosh none 1907 - 1909 To Onapa Irene Seminole none 1903 - 1907 To Price Ireton Grady none 1898 - 1919 Unknown Ironbridge Haskell none 1891-1910 To Kanima Irving Lincoln none 1892 - 1894 Unknown Isabella Pottawatomie none 1875 - 1875 To Clardyville Isabella Major 73747 1894 - Active Isadore Tillman none 1907 - 1912 Unknown Isom Springs Marshall none 1902 - 1924 Unknown Ison Caddo none 1902 - 1903 To Gracemont Ittitalah Johnston none 1881 - 1883 To Tishamingo Iva Beaver none 1905 - 1907 Unknown Ivanhoe Custer none 1887 - 1891 To Custer Ivanhoe Beaver none 1892 - 1920 Unknown Ivy Pottawatomie none 1892 - 1893 Unknown
none
To Choctaw City
Imi
Caddo
none
Unknown
Unknown
Indian
Roger Mills
none
Unknown
Unknown
Iris
Harper
none
Unknown
Unknown
Ivy
Dewey
none
Unknown
Unknown