Township number four in the first range north of the Waldo Patent, now the town of Troy, which lay partly in Hancock County, was entirely annexed to Kennebec County, February 28, 1799 (ch. 72).

By the act of incorporation of Oxford County in 1805 (ch. 70). the towns of Wilton, Temple, Avon and township number three on Sandy River (Phillips) were declared to be in Kennebec County.

The town of Jay, divided by the western boundary., was declared to be in Oxford County, March 8. 1808 (ch. 97).

A large part of the county was set off and a definite northern boundary was established when Somerset was incorporated, June 1. 1809 (ch. 62). The new line extended from the northeasterly corner of township number four in the first range north of the Waldo Patent, thence running westerly, on the northerly line of said township and the town of Unity, to the northwest corner of the town of Unity aforesaid; thence due west to the easterly line of the town of Clinton; thence northerly, by said Clinton, to the northeast corner thereof; thence westerly by the northerly line of Clinton, to Kennebeck River; thence down the middle of said river to the line between Waterville and Fairfield; thence westerly between the towns last mentioned, to the southwesterly corner of said Fairfield; thence westerly on a straight line to the southeasterly corner of the town of Mercer; thence westerly on the southerly line of said town of Mercer, to the easterly line of the town of New Sharon; thence northwesterly on the northeasterly line of the town of New Sharon aforesaid, to the easterly line of the town of Farmington; thence northerly and westerly, on the easterly and northerly line of said town of Farmington, to the easterly line of the town of Temple; thence northerly and westerly, on the easterly and northerly line of the town of Temple, to the easterly line of the county of Oxford.

The town of Litchfield, a small part of which was in Kennebec County, was entirely annexed to Lincoln County, February 25, 1811 (ch. 61). The southern boundary was further corrected, February 29, 1812 (ch. 160) when Malta (now Windsor) was entirely annexed to Kennebec County, and the town of Whitefield annexed to Lincoln County.

The northern boundary, with Somerset County, was altered, February 26, 1813 (ch. 108): "beginning at the northwest corner of township number four (now Kingville) and running due west until it strikes the line of the town of Clinton".

One estate annexed from Whitefield to Gerry (previously Malta and now Windsor) in 1821 (ch. 58) was returned to Whitefield in 1907 (ch. 96) by repeal of the former act.

The southeast corner of Warsaw (Pittsfield) was annexed from Somerset County to Twenty-five Mile Pond Plantation, March 17, 1821 (ch. 76).

Kennebec County was further reduced in size when the towns of Freedom, Unity, Montgomery (Troy), and Burnham were set off to form part of Waldo County, July 3, 1827 (Public Laws, chs. 354, 362).

The Kennebec-Somerset county line was again altered in 1830 when two estates were annexed to Clinton from Pittsfield (ch. 71).

The town of Litchfield was annexed from Lincoln County, March 10, 1835 (ch. 553).

Upon the establishment of Franklin County, May 9, 1838 (Public Laws, ch. 328; 11, 99-100 **), Kennebec County lost the towns of New Sharon,, Chesterville, Wilton, Temple, and Farmington.

Part of the town of Dearborn was set off to form part of the new town of Smithfield in Somerset County, February 29, 1840 (ch. 27).

The town of Wales was annexed from Lincoln County, March 6, 1840 (chs. 53 37).

From the date of establishment of Kennebec County, the town of Livermore had been divided by the Kennebec-Oxford county line; when the part of the town lying east of Androscoggin River was incorporated as the town of East Livermore, March 1, 1844, the new town was declared to be in Kennebec County (1843, ch. 97).

Three lots were set off from Vienna to Chesterville in Franklin County, August 2, 1847 (ch. 93).

On July 24, 1849, one estate was set off from Clinton to Canaan in Somerset County (ch. 234), but this act was repealed, August 8, 1850 (ch. 351).

That section of the Kennebec -Franklin county line extending between the towns of Vienna and Chesterville was exactly defined, April 9, 1852 (ch. 566).

Part of one lot was set off from Greene to Lewiston in Lincoln County, April 20, 1852 (ch. 617).

Another change in Kennebec County boundaries occurred, March 31, 1854, when the towns of East Livermore, Greene, Leeds, and Wales were set off to form part of Androscoggin County (Public Laws, ch. 60).

Land was set off from Monmouth to Wales in 1855 (ch. 526); from Litchfield to Wales in 1856 (ch. 592); and a very small parcel from Litchfield to Webster in 1867 (ch. 270). Land was annexed from Leeds to Wayne in 1859 (ch. 344).

In 1873, part of Clinton Gore Plantation was set off to the town of Burnham in Waldo County (ch. 384), and an island was set off from Benton to Fairfield in Somerset County (ch. 390).

Kennebec County now consists of the cities of Augusta, Gardiner, Hallowell., and Waterville; the towns of Albion, Belgrade, Benton, Chelsea, China,, Clinton, Farmingdale, Fayette, Litchfield, Manchester, Monmouth, Mount Vernon, Oakland, Pittston, Randolph, Readfield, Rome, Sidney, Vassalborough, Vienna, Wayne, West Gardiner, Windsor, Winslow, and Winthrop; and Unity Plantation.