The following is a summary of acts which authorized boundary changes for Warren County.
- Acts of 1809, Chapter 41, appointed Turner Lane, of White County, and John A. Wilson of Warren County, as commissioners, to run and mark the dividing line between their respective counties from the mouth of Rocky River to the top of Cumberland Mountain taking care to run and mark the same as near along the middle of the dividing ridge between the said Rocky River and the Caney Fork.
- Acts of 1821, Chapter 167, recited in the preamble that both Alexander Perryman, who had moved away, and John M'Gowan, who had not done so, were appointed to survey the portion of Franklin County annexed to Warren and neither had complied therewith, therefor, John B. Rogers, Warren County, would be assigned to the task, under the same terms and conditions as the earlier acts provided.
- Acts of 1827, Chapter 211, again authorized John A. Wilson, of Warren County, and Leroy May, of Franklin County, to run and mark the boundary between the two counties, and be paid at the rate of $1.50 per mile, half to be paid by each one of the named counties.
- Acts of 1835-36, Chapter 33, primarily created or established the new county of Cannon, to be located east of Rutherford County, northwest of Warren County and south of Wilson and Smith Counties, and to be composed of parts of said counties of Warren, Rutherford and Smith. The new county was more particularly described therein, and the counties of Warren, Rutherford and Smith were to continue to exercise jurisdiction over the territory composing the county of Cannon and the citizens thereof until an election of county officers was held under the amended constitution of the State.
- Acts of 1835-36, Chapter 36, established the new county of Coffee, located east of Bedford County, west of Warren County and north of Franklin County, adjoining and being composed of parts of said counties. A metes and bounds description of the new county was provided, as was the provision that the counties of Bedford, Franklin and Warren were to exercise jurisdiction over the territory composing said county of Coffee and the citizens thereof until the election of county officers was held under the amended State constitution.
- Acts of 1835-36, Chapter 39, was a supplement to Acts of 1835-36, Chapter 33, which appointed commissioners to run and mark the dividing line between the counties of Cannon and Rutherford, and the line between Cannon and Warren, specifically describing where to run the lines.
- Acts of 1849-50, Chapter 79, changed the lines between Warren and Grundy Counties so as to include all the lands of William Kelton, Wilson S. Kelton, Ely Hanby, and Jacob Wagoner in Warren County and the lands of Elizabeth Tate, Peter Countis, and Jacob Warmamaker [sic] in Grundy County.
- Acts of 1851-52, Chapter 262, Section 4, altered the boundaries with DeKalb County so that the farm of J. N. Murphey would be included in DeKalb and the south boundary line of Murphey's farm would be the dividing line between Warren and DeKalb Counties.
- Acts of 1855-56, Chapter 122, Section 23, transferred the farm belonging to John Martin, Jr., from Warren into DeKalb County.
- Acts of 1869-70, Chapter 69, Section 58, annexed all the lands and possessions of John B. Rodgers, including Rock Island, to Warren County.
- Acts of 1871, Chapter 91, Section 4, changed the lines between Warren and Van Buren Counties so as to place the lands of J. Wiley Miller, H. L. Moffet, Wm. L. Stickley, and John C. Miller in Warren County. This Act was partly repealed by Acts of 1879, Chapter 58.
- Acts of 1872, Chapter 19, Section 4, made the exact same changes as did the previous act. The only difference between the two was the addition of a Section 6 to this act, which section had no effect on Warren County.
- Acts of 1879, Chapter 58, repealed Acts of 1871, Chapter 91, thus restoring the lines as they formerly existed between Warren and Van Buren Counties, except that the lands of Wm. L. Steakley were to remain in Warren County. The Act further transferred the lands and estates of Goodbar Mills, which belonged to Harmon York and George E. Kell, and the estate of O. C. Craine into Van Buren County.
- Acts of 1883, Chapter 66, moved the farm belonging to S. G. Hawkins out of DeKalb County and into Warren County.
- Acts of 1883, Chapter 244, transferred the land belonging to Elijah Grissome, which formerly was the property of W. L. Steakley, back into Van Buren County, and repealed that portion of Acts of 1879, Chapter 58, which had not been repealed previously, and had left this farm in Warren County.
- Acts of 1885, Chapter 136, altered the boundaries of Van Buren, White, and Warren Counties so that all the lands of John B. Rodgers, deceased, as they are described in the Act, would be included in Warren County.
- Acts of 1889, Chapter 57, moved the properties of Warren Cummings, known as the Gordon Farm, from Warren County into Cannon County. This Act was repealed by Acts of 1899, Chapter 305.
- Acts of 1889, Chapter 110, transferred the farm of C. S. Campbell from Cannon County and attached it to Warren County.
- Acts of 1897, Chapter 136, changed the lines between Warren and DeKalb Counties so as to include all the land of Mrs. Laura Northcut in DeKalb County.
- Acts of 1899, Chapter 84, transferred all the lands included in the Baloff mill tract, belonging to Smallman and Swann, from White County into Warren County.
- Acts of 1899, Chapter 305, specifically repealed Acts of 1889, Chapter 57, so that the "Old Gordon Farm" was returned to Warren County from Cannon County.
- Acts of 1899, Chapter 342, transferred the properties belonging to James Roller from Warren County into DeKalb County.
- Acts of 1899, Chapter 344, changed the lines so as to include the farm of H. G. Stevens from DeKalb County in Warren County.
- Private Acts of 1915, Chapter 444, detached the lands belonging to R. E. Summers from the 5th Civil District of Cannon County and attached them to the 11th Civil District of Warren County. This Acts was repealed by Private Acts of 1943, Chapter 266.
- Private Acts of 1915, Chapter 478, moved the properties belonging to the concern of J. R. Hinton and Brothers, from the 10th Civil District of Coffee County into the 10th Civil District of Warren County.
- Private Acts of 1923, Chapter 337, provided that all the land of H. L. Elam, lying partly in the 10th Civil District of Warren, and partly in the 10th Civil District of Coffee County, would all be included in Warren County.
- . Private Acts of 1925, Chapter 530, detached the lands of R. P. Kirby from the 21st Civil District of DeKalb County and attached the same to the 16th Civil District of Warren County.
- Private Acts of 1925, Chapter 579, transferred the lands of J. R. Hinton and brothers, C. C. Snipes and Horace Rogers from the 10th Civil District of Coffee County into the 10th Civil District of Warren County.
- Private Acts of 1925, Chapter 750, changed the lines between Warren and Coffee Counties by placing all the lands of H. E. Ramsey in Coffee County.
- Private Acts of 1925, Chapter 756, moved the farm of F. M. Holder from the 9th Civil District of Cannon County to the 12th Civil District of Warren.
- Private Acts of 1941, Chapter 435, detached about 45 acres of land in the 11th Civil District of Warren County belonging to Thelia Cotton, and attached the same to the 9th Civil District of Cannon County.
- Private Acts of 1943, Chapter 266, detached from Warren County about 250 acres composing the R. E. Summers farm, belonging to Alonzo Hayes, Lilburn Todd, and Stanley Lewis, as three tracts in the 11th Civil District, and attached the same to Cannon County. The Act expressly repealed Private Acts of 1915, Chapter 444 (Item 24, herein).
- Private Acts of 1947, Chapter 562, transferred a 75-acre tract owned by F. E. Bradshaw, and another 75-acre farm owned by J. P. Whitlock, from Coffee County into the 10th Civil District of Warren County.
- Private Acts of 1947, Chapter 629, transferred 100 acres, more or less, owned by Tom Pointer, out of the First Civil District of Grundy County and into the 8th Civil District of Warren County.
- Private Acts of 1953, Chapter 180, detached the lands of L. D. Burks and wife, Thelma Burks, and Coy Dennis, from the 10th Civil District of Coffee County and attached them to Warren County.
- Private Acts of 1953, Chapter 573, took the lands of John Burger which were in the 11th Civil District of Warren County, and placed them in the 8th Civil District of Cannon County.
- Private Acts of 1965, Chapter 103, transferred 9 acres, more or less, as described in the Act and being owned by Marshall Smith and wife, Beulah Smith, from the 11th Civil District of Warren County into the 8th Civil District of Cannon County.