1850 Counties of Tennessee
| County | Description | Area in sq miles | Courts held at | Pop in 1850 |
| Anderson | northeast part, water by Clinch river, crossed by Cumberland Mts | 750 | Clinton | 6,938 |
| Bedford | in central part | 875 | Shelbyville | 21,512 |
| Benton | in western part, between TN & Big Sandy rivers | 375 | Camden | 6,305 |
| Bledsoe | SE part, crossed by Sequatchie river | 455 | Pikeville | 5,959 |
| Blount | SE boundary, TN river on NW side | 900 | Maryville | 12,382 |
| Bradley | southeast part, drained by Hiawassee river | blank | Cleveland | 12,259 |
| Campbell | north boundary, on north west side of Clinch river | 672 | Jacksborough | 6,068 |
| Cannon | central part | 100 | Woodbury | 9,982 |
| Carroll | western part, drained by Big Sandy river | 960 | Huntingdon | 15,967 |
| Carter | northeast corner | 540 | Elizabethtown | 6,296 |
| Claiborne | northern boundary, north side of Clinch river, drained by Powell's river | 580 | Tazewell | 9,369 |
| Cocke | southeast boundary, with Nolachucky river on the north | 374 | Newport | 8,200 |
| Coffee | central part | 170 | Manchester | 8,350 |
| Davidson | northern part, crossed by Cumberland river | 640 | Nashville (State Capital) | 38,881 |
| Decatur | western part, on west side of Tennessee river | blank | Derryville | 6,003 |
| De Kalb | central part, crossed by Caney fork of Cumberland river | 275 | Smithville | 8,016 |
| Dickson | northern part, Cumberland river on northeast | 1000 | Charlotte | 8,404 |
| Dyer | western boundary, Mississippi river on the west | 840 | Dyersburgh | 6,361 |
| Fayette | south western part | 576 | Somerville | 26,719 |
| Fentress | northern bourdary | 560 | Jamestown | 4,454 |
| Franklin | southern boundary | 840 | Winchester | 13,768 |
| Gibson | western part | 630 | Trenton | 19,548 |
| Giles | southern boundary | 514 | Pulaski | 25,949 |
| Granger | north eastern part, Holston river on southeast, Clinch river on northwest | 320 | Rutledge | 12,370 |
| Greene | eastern boundary, Stony Mts on southeast, crossed by Nolichucky river | 700 | Greenville | 17,824 |
| Grundy | southern part | blank | Altamont | 2,773 |
| Hamilton | southern boundary, crossed by Tennessee river | 464 | Harrison | 10,075 |
| Hancock | northeastern part | blank | blank | 5,660 |
| Hardeman | southern boundary, crossed by Big Hatchee river | 720 | Bolivar | 17,456 |
| Hardin | southern boundary, crossed by Tennessee river | 700 | Savannah | 10,328 |
| Hawkins | northern boundary, crossed by Holston & Clinch rivers | 750 | Rogersville | 13,370 |
| Haywood | south western part, crossed by Big Hatchee river | 600 | Brownsville | 17,259 |
| Henderson | western part | 665 | Lexington | 13,164 |
| Henry | northern boundary, Tennessee & Big Sandy rivers on east | 600 | Paris | 18,233 |
| Hickman | western part | 726 | Centreville | 9,397 |
| Humphreys | western part, Tennessee river on west | 475 | Waverly | 6,422 |
| Jackson | northern boundary, crossed by Cumberland river | 625 | Gainesborough | 15,673 |
| Jefferson | north eastern part, Holston river on northwest, crossed by Nolichucky river | 356 | Danbridge | 13,204 |
| Johnson | northeast corner | 300 | Taylorsville | 3,499 |
| Knox | eastern part, crossed by Tennessee river | 864 | Knoxville | 18,775 |