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County · code 47093

Knox CountyTennessee

Knox County is a county in Tennessee, located in the eastern part of the state with its seat in Knoxville. The county was formed on June 15, 1792, from Greene and Hawkins counties and named after Henry Knox.

  • Founded1792
  • County seatKnoxville
  • Named forHenry Knox
  • Land area508 sq mi + 18 sq mi water
  • Population478,971 2020 Census
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Updated

AndersonBlountUnionLoudonSevierJeffersonGraingerRoane Knoxville Census outline · seat marked

Where it is

Knox 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 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 CountySumner CountyTipton CountyTrousdale CountyUnicoi CountyUnion CountyVan Buren CountyWarren CountyWashington CountyWayne CountyWeakley CountyWhite CountyWilliamson CountyWilson CountyKnox County Knox
Counties of Tennessee · Knox highlighted

History

Formed in 1792 from Greene County and Hawkins County

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

Knox County was created by the Southwest Territory from Greene, Hawkins, and Cherokee Reserve lands. The county lost territory to the creation of Sevier, Blount, Grainger, Anderson, Union, and Roane counties between 1794 and 1854, though it gained some land back from Grainger County in small adjustments. When Tennessee became a state in 1796, Knox County became one of its original counties.

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

  1. 1792
    Knox County created Knox created by Territory of the United States South of the River Ohio (Southwest Territory) from Greene, Hawkins, and Non-County Area 1 (Cherokee Reserve).
    from Greenefrom Hawkins
    · Terr. Papers U.S., 4:448-449
  2. 1794
    Lost territory Knox lost to creation of Sevier.
    to Sevier
    · Terr. South of R. Ohio Acts 1794, ch. 11/p. 38
  3. 1795
    Lost territory Knox lost to creation of Blount.
    to Blount
    · Terr. South of R. Ohio Acts 1795, ch. 6/p. 60
  4. 1796
    Lost territory Knox lost to creation of Grainger.
    to Grainger
    · Tenn. Acts 1796, 1st assy., 1st sess., ch. 28, sec. 1/p. 95
  5. 1796
    Became part of Tennessee Knox 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 43 changes (38 more, mostly small adjustments)
  1. 1792
    Knox County created Knox created by Territory of the United States South of the River Ohio (Southwest Territory) from Greene, Hawkins, and Non-County Area 1 (Cherokee Reserve).
    from Greenefrom Hawkins
    · Terr. Papers U.S., 4:448-449
  2. 1794
    Lost territory Knox lost to creation of Sevier.
    to Sevier
    · Terr. South of R. Ohio Acts 1794, ch. 11/p. 38
  3. 1795
    Lost territory Knox lost to creation of Blount.
    to Blount
    · Terr. South of R. Ohio Acts 1795, ch. 6/p. 60
  4. 1796
    Lost territory Knox lost to creation of Grainger.
    to Grainger
    · Tenn. Acts 1796, 1st assy., 1st sess., ch. 28, sec. 1/p. 95
  5. 1796
    Became part of Tennessee Knox 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
  6. 1799
    Gained territory Knox gained from Non-County Area 2. · Tenn. Acts 1798, 2d assy., 2d sess., ch. 22/p. 172
  7. 1801
    Gained territory Knox gained from Grainger.
    from Grainger
    · Tenn. Acts 1801, 4th assy., ch. 47/p. 281
  8. 1801
    Lost territory Knox lost to creation of Anderson.
    to Anderson
    · Tenn. Acts 1801, 4th assy., ch. 45, secs. 1, 2, 4, 30/pp. 274, 279
  9. 1801
    Lost territory Knox lost to creation of Roane.
    to Roane
    · Tenn. Acts 1801, 4th assy., ch. 45, secs. 1, 3, 4, 30/pp. 274, 279
  10. 1842
    Lost territory Knox lost to Grainger to accommodate local resident.
    to Grainger
    · Tenn. Acts 1841, 24th assy., 1st sess., ch. 179/p. 208
  11. 1852
    Gained territory Knox gained from Grainger to accommodate local residents.
    from Grainger
    · Tenn. Acts 1851, 29th assy., ch. 221/p. 330
  12. 1853
    Boundary clarified Boundary between Knox and Sevier clarified (no change).
    with Sevierno change
    · Tenn. Acts 1853, 30th assy., ch. 177/p. 245
  13. 1854
    Lost territory Knox lost to creation of Union.
    to Union
    · Tenn. Acts 1849, 28th assy., ch. 61, secs. 1-2, 4, 18/pp. 181-187; Tenn. Acts 1851, 29th assy., ch. 22/p. 26; Tenn. Acts 1853, 30th assy., ch. 2, secs. 1-2/pp. 25-26; Graves, 1:68-69
  14. 1856
    Exchanged territory Knox exchanged with Union.
    with Union
    · Tenn. Acts 1855, 31st assy., ch. 165/p. 256
  15. 1856
    Lost territory Knox lost to Jefferson to accommodate local resident.
    to Jefferson
    · Tenn. Acts 1855, 31st assy., ch. 248/p. 503
  16. 1860
    Lost territory Knox lost to Union to accommodate local residents.
    to Union
    · Tenn. Acts 1859, 33d assy., 1st sess., priv., ch. 196, secs. 1-11/pp. 575-577
  17. 1866
    Lost territory Knox lost to Union.
    to Union
    · Tenn. Acts 1865, 34th assy., 2d sess., priv., ch. 76/p. 224
  18. 1870
    Lost territory Knox lost to Grainger to accommodate local residents.
    to Grainger
    · Tenn. Acts 1869, 36th assy., 1st sess., pub., ch. 48/p. 62
  19. 1873
    Gained territory Knox gained from Union to accommodate local resident.
    from Union
    · Tenn. Acts 1873, 38th assy., ch. 72/p. 106
  20. 1875
    Lost territory Knox lost to Union to accommodate local residents.
    to Union
    · Tenn. Acts 1875, 39th assy., ch. 140, secs. 1-5/pp. 228-230
  21. 1883
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1883, 43d assy., ch. 103/p. 100
  22. 1887
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1887, 45th assy., ch. 47/p. 119
  23. 1887
    Exchanged territory Knox exchanged with Sevier to accommodate local residents.
    with Sevier
    · Tenn. Acts 1887, 45th assy., ch. 132/p. 231; ch. 136/p. 240
  24. 1889
    Gained territory Knox gained from Union to accommodate local resident.
    from Union
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 20/p. 28
  25. 1889
    Lost territory Knox lost Holt Island to Anderson to accommodate local resident.
    to Anderson
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 124/p. 229
  26. 1889
    Gained territory Knox gained from Union to accommodate local residents (later overturned).
    from Union
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 194/p. 384
  27. 1891
    Lost territory Knox lost to Union when Tennessee Supreme Court overturned act of 4 April 1889.
    to Union
    · "Union County v. Knox County" in Tenn. Rpts., 90:541-545
  28. 1895
    Gained territory Knox gained from Sevier to accommodate local resident.
    from Sevier
    · Tenn. Acts 1895, 49th assy., ch. 95/p. 160
  29. 1895
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1895, 49th assy., ch. 183/p. 382
  30. 1899
    Gained territory Knox gained from Sevier to accommodate local resident.
    from Sevier
    · Tenn. Acts 1899, 51st assy., ch. 117/p. 194
  31. 1899
    Gained territory Knox gained from Sevier to accommodate local residents.
    from Sevier
    · Tenn. Acts 1899, 51st assy., ch. 256/p. 584
  32. 1901
    Lost territory Knox lost to Grainger to accommodate local resident.
    to Grainger
    · Tenn. Acts 1901, 52d assy., ch. 191/p. 416
  33. 1905
    Lost territory Knox lost to Union to accommodate local residents.
    to Union
    · Tenn. Acts 1905, 54th assy., ch. 186/p. 390
  34. 1909
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1909, 56th assy., ch. 68/p. 203
  35. 1919
    Gained territory Knox gained from Grainger to accommodate local residents.
    from Grainger
    · Tenn. Acts 1919, 61st assy., priv., ch. 739/p. 2279
  36. 1925
    Gained territory Knox gained small area from Union.
    from Union
    · Tenn. Acts 1925, 64th assy., priv., ch. 462/p. 1733
  37. 1927
    Gained territory Knox gained from Grainger to accommodate local resident.
    from Grainger
    · Tenn. Acts 1927, 65th assy., priv., ch. 741/p. 2408
  38. 1933
    Gained territory Knox gained from Sevier to accommodate local residents.
    from Sevier
    · Tenn. Acts 1933, 68th assy., priv., ch. 355/p. 842
  39. 1933
    Gained territory Knox gained from Grainger to accommodate local resident.
    from Graingerfrom Knox-Grainger
    · Tenn. Acts 1933, 68th assy., priv., ch. 637/p. 1518
  40. 1935
    Gained territory Knox gained from Sevier to accommodate local residents.
    from Sevierfrom Knox-Sevier
    · Tenn. Acts 1935, 69th assy., priv., ch. 672/p. 1802
  41. 1953
    Gained territory Knox gained from Blount to accommodate local resident.
    from Blount
    · Tenn. Acts 1953, 78th assy., priv., ch. 116/p. 397
  42. 1963
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1963, 83d assy., priv., ch. 120/p. 388
  43. 1982
    Lost territory Knox lost to Union to accommodate local resident.
    to Union
    · Tenn. Acts 1982, 92d assy., 2d reg. sess., pub., ch. 666/p. 202

Land and parcels

What the maps cover in Knox

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

Knox by the Census

Population
478,971 2020 Census count
Housing units
210,972 2020 Census count
Land area
508 square miles
Water area
18 square miles
People per sq mi
942 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

Knox County's official site

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County government

See your own lot on these maps

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Questions

Common questions about Knox County

When was Knox County founded?
Knox County was founded in 1792, formed from Greene County and Hawkins County, and named after Henry Knox.
What is the county seat of Knox County?
The county seat of Knox County is Knoxville.
Is there an online parcel map for Knox County?
Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Knox County's boundary or name changed?
Knox County was created in 1792 from Greene County and Hawkins County. Since then the Atlas of Historical County Boundaries records 41 later changes, most of them small boundary adjustments, chiefly involving Union County, Grainger County and Sevier County.
Is my lot in a flood zone?
We do not have flood maps for Knox 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