Kentucky Co., VA, formed------------------------------------------1776-1777
Kentucky Co., VA, divided into Fayette, Jefferson, & Lincoln-----------1780
  Fayette formed-------------------------------------------------------1780
  Jefferson formed-----------------------------------------------------1780
  Lincoln formed-------------------------------------------------------1780

(This boundary was called "The Walker Line" and was an irregular course north of the defined line at 36d, 30m North Latitude.  This boundary was recognized as the de facto boundary until formally settled in 1820.)

Nelson from Jefferson---------------------------------------------1784-1785
Bourbon from Fayette----------------------------------------------1785-1786
Madison from Lincoln----------------------------------------------1785-1786
Mercer from Lincoln-----------------------------------------------1785-1786
Mason from Bourbon------------------------------------------------1788-1789
Woodford from Fayette---------------------------------------------1788-1789
Kentucky separated from Virginia, admitted as a State------------------1792
Logan from Lincoln-----------------------------------------------------1792
Scott from Woodford----------------------------------------------------1792
Shelby from Jefferson--------------------------------------------------1792
Washington from Nelson-------------------------------------------------1792
Clark from Bourbon and Fayette------------------------------------1792-1793
Green from Nelson and Lincoln-------------------------------------1792-1793
Hardin from Nelson------------------------------------------------1792-1793
Harrison from Bourbon and Scott-----------------------------------1793-1794
Campbell from Harrison, Mason, and Scott--------------------------1794-1795
Franklin from Mercer, Shelby, and Woodford------------------------1794-1795
Bracken from Campbell and Mason-----------------------------------1796-1797
Bullitt from Jefferson and Nelson---------------------------------1796-1797
Christian from Logan----------------------------------------------1796-1797
Garrard from Madison, Mercer, and Lincoln-------------------------1796-1797
Montgomery from Clark---------------------------------------------1796-1797
Warren from Logan-------------------------------------------------1796-1797
Fleming from Mason-----------------------------------------------------1798
Clark gained from Bourbon----------------------------------------------1798
Henderson from Christian------------------------------------------1798-1799
Livingston from Christian-----------------------------------------1798-1799
Pendleton from Bracken and Campbell-------------------------------1798-1799
Boone from Campbell-----------------------------------------------1798-1799
Barren from Green and Warren--------------------------------------1798-1799
Gallatin from Franklin and Shelby---------------------------------1798-1799
Henry from Shelby-------------------------------------------------1798-1799
Cumberland from Green---------------------------------------------1798-1799
Jessamine from Fayette--------------------------------------------1798-1799
Ohio from Hardin--------------------------------------------------1798-1799
Muhlenberg from Christian and Logan-------------------------------1798-1799
Pulaski from Green and Lincoln------------------------------------1798-1799
Breckinridge from Hardin------------------------------------------1799-1800
Floyd from Fleming, Mason, and Montgomery-------------------------1799-1800
Knox from Lincoln-------------------------------------------------1799-1800
Nicholas from Bourbon and Mason-----------------------------------1799-1800
Garrard gained from Madison--------------------------------------------1800
Madison gained from Montgomery-----------------------------------------1800
Muhlenberg gained from Christian---------------------------------------1800
Wayne from Cumberland, Green, and Pulaski-------------------------1800-1801
Garrard gained from Lincoln--------------------------------------------1801
Adair from Green--------------------------------------------------1801-1802
Greenup from Mason------------------------------------------------1803-1804
Adair gained from Cumberland-------------------------------------------1804
Green gained from Hardin-----------------------------------------------1804
Wayne gained from Adair------------------------------------------------1804
Adair exchanged with Cumberland----------------------------------------1805
Cumberand exchanged with Adair-----------------------------------------1805
Knox gained from Madison-----------------------------------------------1805
Casey from Lincoln------------------------------------------------1806-1807
Clay from Floyd, Knox, and Madison--------------------------------1806-1807
Hopkins from Henderson--------------------------------------------1806-1807
Lewis from Mason--------------------------------------------------1806-1807
Floyd gained from Madison----------------------------------------------1807
Knox gained from Madison-----------------------------------------------1807
Estill from Clark and Madison------------------------------------------1808
Lincoln gained from Casey----------------------------------------------1808
Caldwell from Livingston-----------------------------------------------1809
Henderson gained from Ohio---------------------------------------------1809
Butler from Logan and Ohio---------------------------------------------1810
Grayson from Hardin and Ohio-------------------------------------------1810
Rockcastle from Knox, Lincoln, Madison, and Pulaski--------------------1810
Bath from Montgomery---------------------------------------------------1811
Union from Henderson---------------------------------------------------1811
Bullit gained from Jefferson-------------------------------------------1811
Madison gained from Clay-----------------------------------------------1812
Allen from Barren and Warren-------------------------------------------1815
Daviess from Ohio------------------------------------------------------1815
Estill gained from Clay------------------------------------------------1815
Estill gained from Montgomery------------------------------------------1816
Fleming gained from Nicholas-------------------------------------------1816
Harrison gained from Nicholas------------------------------------------1816
Warren gained from Allen-----------------------------------------------1816
Nicholas gained from Bourbon-------------------------------------------1817
Bath gained from Floyd-------------------------------------------------1818
Floyd gained from Montgomery-------------------------------------------1818
Pulaski exchanged with Wayne-------------------------------------------1818
Wayne exchanged with Pulaski-------------------------------------------1818
Whitley from Knox------------------------------------------------------1818
Purchase of Chickasaw Lands ("Jackson Purchase")-----------------------1818
Harlan from Knox-------------------------------------------------------1819
Hart from Barren and Hardin--------------------------------------------1819
Owen from Franklin, Gallatin, Pendleton, and Scott---------------------1819
Simpson from Allen, Logan, and Warren----------------------------------1819
Allen gained from Warren-----------------------------------------------1819
Caldwell gained from Christian-----------------------------------------1819
Todd from Christian and Logan-------------------------------------1819-1820
Grant from Pendleton---------------------------------------------------1820
Monroe from Barren and Cumberland--------------------------------------1820
Trigg from Caldwell and Christian--------------------------------------1820
Boone gained from Gallatin---------------------------------------------1820
Franklin gained from Owen and Shelby-----------------------------------1820
Harlan exchanged with Knox---------------------------------------------1820
Knox exchanged with Harlan---------------------------------------------1820
Harrison gained from Bracken-------------------------------------------1820
Hopkins gained from Christian------------------------------------------1820
Simpson gained from Allen----------------------------------------------1820
Perry from Clay and Floyd-----------------------------------------1820-1821
Boundary with Tennessee formally settled-------------------------------1820
Hickman from Caldwell and Livingston-----------------------------------1821
Owen gained from Gallatin----------------------------------------------1821
Rockcastle gained from Madison-----------------------------------------1821
Lawrence from Floyd and Greenup-----------------------------------1821-1822
Pike from Floyd---------------------------------------------------1821-1822
Calloway from Caldwell and Livingston-----------------------------1821-1823
Graves from Caldwell and Livingston-------------------------------1821-1824
McCracken from Livingston-----------------------------------------1821-1825
Allen gained from Simpso-----------------------------------------------1822
Todd gained from Logan-------------------------------------------------1822
Morgan from Bath and Floyd----------------------------------------1822-1823
Logan exchanged with Todd----------------------------------------------1823
Todd exchanged with Logan----------------------------------------------1823
Meade from Breckinridge and Hardin--------------------------------1823-1824
Oldham from Henry, Jefferson, and Shelby--------------------------1823-1824
Nicholas gained from Fleming-------------------------------------------1824
Spencer from Bullit, Nelson, and Shelby--------------------------------1824
Allen gained from Barren and Monroe------------------------------------1825
Edmonson from Grayson, Hart, and Warren--------------------------------1825
Trigg gained from Caldwell---------------------------------------------1825
Laurel from Clay, Knox, Rockcastle, and Whitley-------------------1825-1826
Russell from Adair, Cumberland, and Wayne-------------------------1825-1826
Trigg gained from Caldwell---------------------------------------------1826
Whitley gained from Pulaski--------------------------------------------1826
Anderson from Franklin, Mercer, and Washington-------------------------1827
Barren gained from Warren----------------------------------------------1827
Casey gained from Adair------------------------------------------------1827
Franklin gained from Henry---------------------------------------------1827
Grant gained from Harrison---------------------------------------------1827
Trigg gained from Caldwell---------------------------------------------1827
Allen gained from Warren-----------------------------------------------1828
Owen gained from Gallatin----------------------------------------------1828
Trigg gained from Caldwell---------------------------------------------1828
Hancock from Breckinridge, Daviess, and Ohio---------------------------1829
Daviess gained from Ohio-----------------------------------------------1830
Lawrence gained from Greenup-------------------------------------------1830
Monroe gained from Cumberland------------------------------------------1830
Breckinridge gained from Ohio------------------------------------------1831
Wayne gained from Pulaski----------------------------------------------1831
Shelby gained from Oldham----------------------------------------------1833
Harrison gained from Bracken-------------------------------------------1834
Laurel gained from Knox------------------------------------------------1834
Marion from Washington-------------------------------------------------1834
Clinton from Cumberland and Wayne--------------------------------------1836
Gallatin gained from Boone---------------------------------------------1837
Morgan gained from Lawrence--------------------------------------------1837
Trimble from Gallatin, Henry, and Oldham-------------------------------1837
Carroll from Gallatin, Henry, and Trimble------------------------------1838
Carter from Greenup and Lawrence---------------------------------------1838
Henry gained from Trimble----------------------------------------------1838
Knox gained from Harlan------------------------------------------------1838
Livingston gained from Caldwell----------------------------------------1838
Breathitt from Clay, Estill, and Perry---------------------------------1839
Morgan gained from Floyd-----------------------------------------------1839
Kenton from Campbell---------------------------------------------------1840
Russell gained from Pulaski--------------------------------------------1840
Harlan gained from Perry-----------------------------------------------1841
Ballard from Hickman and McCracken-------------------------------------1842
Boyle from Lincoln and Mercer------------------------------------------1842
Crittenden from Livingston---------------------------------------------1842
Letcher from Harlan and Perry------------------------------------------1842
Marshall from Callaway-------------------------------------------------1842
Breathitt gained from Estill-------------------------------------------1843
Johnson from Floyd and Lawrence----------------------------------------1843
Larue from Hardin------------------------------------------------------1843
Owsley from Breathitt, Clay, and Estill--------------------------------1843
Perry gained from Clay-------------------------------------------------1843
Trimble gained from Henry----------------------------------------------1843
Bracken gained from Nicholas-------------------------------------------1844
Casey gained from Adair------------------------------------------------1844
Fulton from Hickman----------------------------------------------------1845
Breathitt gained from Perry--------------------------------------------1846
Livingston gained from Critenden---------------------------------------1848
Taylor from Green------------------------------------------------------1848
Lawrence gained from Floyd and Pike------------------------------------1850
Clay exchanged with Perry----------------------------------------------1850
Perry exchanged with Clay----------------------------------------------1850
Grant gained from Kenton-----------------------------------------------1852
Harlan gained from Clay------------------------------------------------1852
Lawrence gained from Floyd---------------------------------------------1852
Pike gained from Lawrence----------------------------------------------1852
Powell from Clark, Estill, and Montgomery------------------------------1852
Bath exchanged with Powell---------------------------------------------1854
Powell exchanged with Bath---------------------------------------------1854
Estill gained from Owsley----------------------------------------------1854
Hickman gained from Ballard--------------------------------------------1854
Lyon from Caldwell-----------------------------------------------------1854
McLean from Daviess, Muhlenberg, and Ohio------------------------------1854
Morgan gained from Lawrence and Powell---------------------------------1854
Rowan from Fleming and Morgan------------------------------------------1856
Clay gained from Perry-------------------------------------------------1858
Estill gained from Perry-----------------------------------------------1858
Jackson from Madison, Owsley, and Rockcastle---------------------------1858
Laurel gained from Perry-----------------------------------------------1858
Letcher gained from Perry----------------------------------------------1858
Simpson lost to State of Tennessee by unauthorized re-survey-----------1859
Boyd from Carter, Greenup, and Lawrence--------------------------------1860
Daviess gained from Henderson------------------------------------------1860
Floyd gained from Lawrence---------------------------------------------1860
Magoffin from Floyd Johnson and Morgan---------------------------------1860
Mercer gained from Washington------------------------------------------1860
Metcalfe from Adair, Barren, Cumberland, Green, and Monroe-------------1860
Webster from Hopkins---------------------------------------------------1860
Wolfe from Breathitt, Morgan, Owsley, and Powell-----------------------1860
Allen gained from Barren-----------------------------------------------1861
Metcalfe gained from Adair---------------------------------------------1861
Lawrence gained from Floyd---------------------------------------------1861
Rockcastle gained from Jackson-----------------------------------------1861
Carter gained from Greenup---------------------------------------------1862
Webster gained from Union----------------------------------------------1862
Caldwell gained from Lyon----------------------------------------------1863
Wolfe gained from Morgan-----------------------------------------------1865
Metcalfe gained from Cumberland----------------------------------------1866
Morgan exchanged with Wolfe--------------------------------------------1866
Wolfe exchanged with Morgan--------------------------------------------1866
Gallatin gained from Grant---------------------------------------------1867
Henrietta from Marshall and Trigg (authorized, never organized)---1867-
Josh Bell from Harlan and Knox-----------------------------------------1867
Robertson from Bracken, Fleming, Harrison, Mason, and Nicholas---------1867
Grant gained from Gallatin---------------------------------------------1868
Morgan gained from Wolfe-----------------------------------------------1868
Elliott from Carter, Lawrence, and Morgan------------------------------1869
Menifee from Bath, Montgomery, Morgan, Powell, and Wolfe---------------1869
Simpson gained from Logan----------------------------------------------1869
Taylor gained from Green-----------------------------------------------1869
Grant gained from Boone------------------------------------------------1870
Green gained from Taylor-----------------------------------------------1870
Lee from Breathitt, Estill, Owsley, and Wolfe--------------------------1870
Martin from Floyd, Johnson, Lawrence, and Pike-------------------------1870
Butler gained from Ohio------------------------------------------------1871
Josh Bell gained from Whitley------------------------------------------1871
Carroll gained from Gallatin-------------------------------------------1872
Josh Bell name changed to Bell-----------------------------------------1873
Bell organized---------------------------------------------------------1873
Oldham gained from Jefferson-------------------------------------------1874
Grant gained from Owen-------------------------------------------------1876
Laurel gained from Whitley---------------------------------------------1876
Russell gained from Cumberland-----------------------------------------1876
Anderson gained from Mercer--------------------------------------------1878
Floyd exchanged with Johnson-------------------------------------------1878
Johnson exchanged with Floyd-------------------------------------------1878
Leslie from Clay and Perry---------------------------------------------1878
Martin gained from Lawrence--------------------------------------------1878
Wolfe gained from Morgan-----------------------------------------------1878
Menifee gained from Powell and Wolfe-----------------------------------1880
Pendleton gained from Bracken------------------------------------------1882
Knott from Breathitt, Floyd, and Perry---------------------------------1884
Letcher gained from Pike-----------------------------------------------1884
Carlisle from Ballard--------------------------------------------------1886
Wolfe gained from Breathitt--------------------------------------------1886
Pike gained from Floyd-------------------------------------------------1888
Powell gained from Menifee---------------------------------------------1888
Anderson gained from Washington----------------------------------------1890
Knott gained from Perry------------------------------------------------1890
Lee gained from Wolfe--------------------------------------------------1890
Leslie gained from Perry-----------------------------------------------1890
Mercer gained from Washington------------------------------------------1890
Muhlenberg tained from Butler------------------------------------------1890
Beckham from Carter, Lewis, and Rowan----------------------------------1904
Beckham declared unconstitutional--------------------------------------1904
McCreary from Pulaski, Wayne, and Whitley------------------------------1912
Cumberland gained from Metcalfe----------------------------------------1939