Where the names of two or more counties start with the same letter, in each of these counties the letter is preceded by a number indicating that county's order in the alphabetical list. For instance, the four counties beginning with 'L' in alphabetical order are Latah, Lemhi, Lewis and Lincoln; the codes for these counties are thus 1L, 2L, 3L ...
Grainger, Claiborne, Campbell, Anderson and Knox counties: Either for its creation from parts of five counties or to memorialize East Tennessee's support for preservation of the Union: 20,040: 224 sq mi (580 km 2) Van Buren County: 175: Spencer: 1840: Warren and White counties: U.S. President Martin Van Buren (1782–1862) 6,324: 247 sq mi (640 ...