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County · code 47165

Sumner CountyTennessee

Sumner County is a county in Tennessee, with its seat in Gallatin, formed in 1787.

  • Founded1787
  • County seatGallatin
  • Named forJethro Sumner
  • Land area529 sq mi + 14 sq mi water
  • Population196,281 2020 Census
  • Parcels mapped99,541 checked 15 October 2026
Open the free map Click any parcel in Sumner County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Simpson, KYTrousdaleWilsonAllen, KYRobertsonDavidsonMacon Gallatin Census outline · seat marked

Where it is

Sumner on the map of Tennessee

Tennessee has 95 counties and county equivalents, each with its own records office. Shapes with a page are links.

Anderson CountyBedford CountyBenton CountyBledsoe CountyBlount CountyBradley CountyCampbell CountyCannon CountyCarroll CountyCarter CountyCheatham CountyChester CountyClaiborne CountyClay CountyCocke CountyCoffee CountyCrockett CountyCumberland CountyDavidson CountyDecatur CountyDeKalb CountyDickson CountyDyer CountyFayette CountyFentress CountyFranklin CountyGibson CountyGiles CountyGrainger CountyGreene CountyGrundy CountyHamblen CountyHamilton CountyHancock CountyHardeman CountyHardin CountyHawkins CountyHaywood CountyHenderson CountyHenry CountyHickman CountyHouston CountyHumphreys CountyJackson CountyJefferson CountyJohnson CountyKnox CountyLake CountyLauderdale CountyLawrence CountyLewis CountyLincoln CountyLoudon CountyMcMinn CountyMcNairy CountyMacon CountyMadison CountyMarion CountyMarshall CountyMaury CountyMeigs CountyMonroe CountyMontgomery CountyMoore CountyMorgan CountyObion CountyOverton CountyPerry CountyPickett CountyPolk CountyPutnam CountyRhea CountyRoane CountyRobertson CountyRutherford CountyScott CountySequatchie CountySevier CountyShelby CountySmith CountyStewart CountySullivan CountyTipton CountyTrousdale CountyUnicoi CountyUnion CountyVan Buren CountyWarren CountyWashington CountyWayne CountyWeakley CountyWhite CountyWilliamson CountyWilson CountySumner County Sumner
Counties of Tennessee · Sumner highlighted

History

Formed in 1787 from Davidson County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Sumner County was created by North Carolina from Davidson County on January 6, 1787. It was named after Jethro Sumner. When North Carolina ceded its western lands in 1790, Sumner became part of the Southwest Territory and later a county of Tennessee when the state was established in 1796.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries; the 5 that matter most are shown first.

  1. 1787
    Sumner County created Sumner created by North Carolina from Davidson.
    from Davidson
    · N.C. St. Recs., 24:ch. 32/pp. 826-828
  2. 1790
    Eliminated Sumner (Tennessee) eliminated from North Carolina when Congress accepted North Carolina's cession of its western lands; Sumner (Tennessee) became a Southwest Territory county on 26 May 1790. · Terr. Papers U.S., 4:13-17; U.S. Stat., vol. 1, ch. 6[1790]/pp. 106-109
  3. 1790
    Sumner County created The United States created the Territory of the United States South of the River Ohio (Southwest Territory), covering the territory ceded in April 1790 by North Carolina (area of present Tennessee). Sumner became a county in the Southwest Territory. · Terr. Papers U.S., 4:18-19; U.S. Stat., vol. 1, ch. 14[1790], p. 123
  4. 1796
    Lost territory Sumner lost to creation of Robertson.
    to Robertson
    · Tenn. Acts 1796, 1st assy., 1st sess., ch. 30/p. 99
  5. 1796
    Became part of Tennessee Sumner became a county in the newly-established state of Tennessee. · U.S. Stat., vol. 1, ch. 47[1796], pp. 491-492; Folmsbee, Corlew, and Mitchell 110
Show all 20 changes (15 more, mostly small adjustments)
  1. 1787
    Sumner County created Sumner created by North Carolina from Davidson.
    from Davidson
    · N.C. St. Recs., 24:ch. 32/pp. 826-828
  2. 1790
    Eliminated Sumner (Tennessee) eliminated from North Carolina when Congress accepted North Carolina's cession of its western lands; Sumner (Tennessee) became a Southwest Territory county on 26 May 1790. · Terr. Papers U.S., 4:13-17; U.S. Stat., vol. 1, ch. 6[1790]/pp. 106-109
  3. 1790
    Sumner County created The United States created the Territory of the United States South of the River Ohio (Southwest Territory), covering the territory ceded in April 1790 by North Carolina (area of present Tennessee). Sumner became a county in the Southwest Territory. · Terr. Papers U.S., 4:18-19; U.S. Stat., vol. 1, ch. 14[1790], p. 123
  4. 1796
    Lost territory Sumner lost to creation of Robertson.
    to Robertson
    · Tenn. Acts 1796, 1st assy., 1st sess., ch. 30/p. 99
  5. 1796
    Lost territory Sumner lost to creation of Grainger.
    to Grainger
    · Tenn. Acts 1796, 1st assy., 1st sess., ch. 28, sec. 1/p. 95
  6. 1796
    Became part of Tennessee Sumner became a county in the newly-established state of Tennessee. · U.S. Stat., vol. 1, ch. 47[1796], pp. 491-492; Folmsbee, Corlew, and Mitchell 110
  7. 1798
    Exchanged territory Sumner exchanged with Non-County Area 2 when that part of Sumner east of Indian boundary reverted to non-county status. · Tenn. Acts 1798, 2d assy., 2d sess., ch. 10/p. 167
  8. 1799
    Lost territory Sumner lost to creation of Smith and Wilson.
    to Smithto Wilson
    · Tenn. Acts 1799, 3d assy., ch. 2/p. 179
  9. 1801
    Lost territory Sumner lost to Wilson when boundary was changed from the south bank to the middle of Cumberland River.
    to Wilson
    · Tenn. Acts 1801, 4th assy., ch. 49, sec. 1/p. 284
  10. 1832
    Changed Boundary between Sumner and Robertson adjusted to run along turnpike road.
    Robertson
    · Tenn. Acts 1832, 19th assy., called sess., priv., ch. 55/p. 42
  11. 1842
    Lost territory Sumner lost to creation of Macon.
    to Macon
    · Tenn. Acts 1841, 24th assy., 1st sess., ch. 45, secs. 1, 19/pp. 56, 60
  12. 1843
    Changed Boundary between Sumner and Robertson adjusted along turnpike road.
    Robertson
    · Tenn. Acts 1843, 25th assy., ch. 40/p. 46
  13. 1854
    Gained territory Sumner gained from Macon to accommodate local resident.
    from Macon
    · Tenn. Acts 1853, 30th assy., ch. 181/p. 250
  14. 1859
    Gained territory Sumner gained from Simpson (Kentucky) when surveyors remarking the Kentucky-Tennessee boundary acted without authority and shifted the line around a small parcel.
    from Simpson (Ky.)
    · Sames, 107, 114
  15. 1870
    Lost territory Sumner lost to creation of Trousdale.
    to Trousdale
    · Tenn. Acts 1870, 36th assy., 2d sess., ch. 27, secs. 1-2, 4/pp. 47-48; Goodspeed [J], 843-844
  16. 1889
    Lost territory Sumner lost to Trousdale to accommodate local resident.
    to Trousdale
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 118/p. 222
  17. 1905
    Gained territory Sumner gained from Macon to accommodate local residents.
    from Macon
    · Tenn. Acts 1905, 54th assy., ch. 196/p. 414
  18. 1929
    Lost territory Sumner lost small area to Trousdale to accommodate local resident.
    to Trousdale
    · Tenn. Acts 1929, 66th assy., priv., ch. 707/p. 2132
  19. 1949
    Changed Boundary between Sumner and Robertson adjusted to run along U.S. Highway 31-W..
    RobertsonU.s.
    · Tenn. Acts 1949, 76th assy., priv., ch. 729/p. 2240
  20. 1961
    Lost territory Sumner lost small area to Trousdale.
    to Trousdale
    · Tenn. Acts 1961, 82d assy., priv., ch. 297/p. 1059

Land and parcels

What the maps cover in Sumner

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Sumner by the Census

Population
196,281 2020 Census count
Housing units
78,995 2020 Census count
Land area
529 square miles
Water area
14 square miles
People per sq mi
371 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Sumner County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

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Questions

Common questions about Sumner County

When was Sumner County founded?
Sumner County was founded in 1787, formed from Davidson County, and named after Jethro Sumner.
What is the county seat of Sumner County?
The county seat of Sumner County is Gallatin.
Is there an online parcel map for Sumner County?
Yes. A public source publishes a parcel map of 99,541 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Sumner County's boundary or name changed?
Sumner County was created in 1787 from Davidson County. Since then the Atlas of Historical County Boundaries records 19 later changes, chiefly involving Robertson County, Trousdale County and Macon County.
Is my lot in a flood zone?
We do not have flood maps for Sumner County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door