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County · code 47143

Rhea CountyTennessee

Rhea County is a county in Tennessee, formed on November 30, 1807, from Roane County, with Dayton as its county seat. The county is named after John Rhea.

  • Founded1807
  • County seatDayton
  • Named forJohn Rhea
  • Land area315 sq mi + 21 sq mi water
  • Population32,870 2020 Census
  • Parcels mapped21,780 checked 15 October 2026
Open the free map Click any parcel in Rhea County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

MeigsBledsoeCumberlandRoaneHamilton Dayton Census outline · seat marked

Where it is

Rhea 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 CountyRoane CountyRobertson CountyRutherford CountyScott CountySequatchie CountySevier CountyShelby CountySmith CountyStewart CountySullivan CountySumner CountyTipton CountyTrousdale CountyUnicoi CountyUnion CountyVan Buren CountyWarren CountyWashington CountyWayne CountyWeakley CountyWhite CountyWilliamson CountyWilson CountyRhea County Rhea
Counties of Tennessee · Rhea highlighted

History

Formed in 1807 from Roane County

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

Rhea County was created from Roane County on November 30, 1807, and gained and lost territory to neighboring counties including Roane, Blount, Hamilton, McMinn, and Bledsoe through the early 1800s.

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

  1. 1807
    Rhea County created Rhea created from Roane.
    from Roane
    · Tenn. Acts 1807, 7th assy., 1st sess., ch. 9, secs. 1-3/p. 39
  2. 1809
    Gained territory Rhea gained from Roane.
    from Roane
    · Tenn. Acts 1809, 7th assy., 2d sess., ch. 20/p. 30
  3. 1815
    Lost territory Rhea lost to Roane.
    to Roane
    · Tenn. Acts 1815, 11th assy., ch. 75/p. 77
  4. 1815
    Gained territory Rhea gained from Blount.
    from Blount
    · Tenn. Acts 1815, 11th assy., ch. 200/p. 265
  5. 1817
    Gained territory Rhea gained from Roane; part of Rhea reverted to Non-County Area 8.
    from Roane
    · Tenn. Acts 1817, 12th assy., ch. 13/p. 15
Show all 26 changes (21 more, mostly small adjustments)
  1. 1807
    Rhea County created Rhea created from Roane.
    from Roane
    · Tenn. Acts 1807, 7th assy., 1st sess., ch. 9, secs. 1-3/p. 39
  2. 1809
    Gained territory Rhea gained from Roane.
    from Roane
    · Tenn. Acts 1809, 7th assy., 2d sess., ch. 20/p. 30
  3. 1815
    Lost territory Rhea lost to Roane.
    to Roane
    · Tenn. Acts 1815, 11th assy., ch. 75/p. 77
  4. 1815
    Gained territory Rhea gained from Blount.
    from Blount
    · Tenn. Acts 1815, 11th assy., ch. 200/p. 265
  5. 1817
    Gained territory Rhea gained from Roane; part of Rhea reverted to Non-County Area 8.
    from Roane
    · Tenn. Acts 1817, 12th assy., ch. 13/p. 15
  6. 1818
    Gained territory Rhea implicitly gained from Roane when Morgan was created.
    from Roanefrom Morgan
    · Tenn. Acts 1817, 12th assy., ch. 38, secs. 1, 18/pp. 41, 45 and ch. 81/p. 89
  7. 1819
    Lost territory Rhea lost to creation of Hamilton.
    to Hamilton
    · Tenn. Acts 1819, 13th assy., 1st sess., loc.-priv., ch. 41/p. 55
  8. 1819
    Gained territory Rhea gained from Roane; lost to creation of McMinn.
    from Roanefrom McMinn
    · Tenn. Acts 1819, 13th assy., 1st sess., pub., ch. 3/p. 29; ch. 7, secs. 1-4/pp. 34-35
  9. 1821
    Lost territory Rhea lost to Bledsoe.
    to Bledsoe
    · Tenn. Acts 1821, 14th assy., 1st sess., loc.-priv., ch. 73/p. 87
  10. 1821
    Lost territory Rhea lost to Hamilton.
    to Hamilton
    · Tenn. Acts 1821, 14th assy., 1st sess., loc.-priv., ch. 169/p. 163
  11. 1833
    Gained territory Rhea gained from Hamilton and McMinn.
    from Hamiltonfrom McMinn
    · Tenn. Acts 1833, 20th assy., pub., ch. 16/pp. 10-12
  12. 1833
    Lost territory Rhea lost to McMinn.
    to McMinn
    · Tenn. Acts 1833, 20th assy., priv., ch. 214/p. 116
  13. 1836
    Lost territory Rhea lost to creation of Meigs.
    to Meigs
    · Tenn. Acts 1835, 21st assy., 1st sess., loc., ch. 34, sec. 1/p. 146
  14. 1837
    Lost territory Rhea lost to Roane to accommodate local resident.
    to Roane
    · Tenn. Acts 1837, 22d assy., ch. 259/p. 391
  15. 1850
    Gained territory Rhea gained from Hamilton to accommodate local residents.
    from Hamilton
    · Tenn. Acts 1849, 28th assy., ch. 82/p. 267
  16. 1855
    Lost territory Rhea lost to creation of Cumberland.
    to Cumberland
    · Tenn. Acts 1855, 31st assy., ch. 6, sec. 1/p. 9
  17. 1856
    Lost territory Rhea lost to Cumberland.
    to Cumberland
    · Tenn. Acts 1855, 31st assy., ch. 166 [printed as 156]/p. 258
  18. 1858
    Lost territory Rhea lost to Bledsoe to accommodate local resident.
    to Bledsoe
    · Tenn. Acts 1857, 32d assy., pub., ch. 83, secs. 1-4, 8-9/pp. 91-93
  19. 1860
    Gained territory Rhea gained from Cumberland to accommodate local resident.
    from Cumberland
    · Tenn. Acts 1859, 33d assy., 1st sess., priv., ch. 211/p. 596
  20. 1867
    Gained territory Rhea gained from Hamilton to accommodate local residents.
    from Hamilton
    · Tenn. Acts 1867, 35th assy., 1st sess., pub., ch. 23/p. 24
  21. 1879
    Gained territory Rhea gained from Hamilton to accommodate local resident.
    from Hamilton
    · Tenn. Acts 1879, 41st assy., 1st sess., ch. 137, secs. 1-17/pp. 174-177
  22. 1889
    Lost territory Rhea lost to Bledsoe to accommodate local resident.
    to Bledsoe
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 25/p. 32
  23. 1889
    Gained territory Rhea gained from Hamilton to accommodate local residents.
    from Hamilton
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 140/p. 278
  24. 1903
    Lost territory Rhea lost to Bledsoe to accommodate local resident.
    to Bledsoeto Rhea-Bledsoe
    · Tenn. Acts 1903, 53d assy., ch. 41/p. 74, repeated in ch. 54/p. 95
  25. 1982
    Gained territory Rhea gained from Hamilton to accommodate local residents.
    from Hamilton
    · Tenn. Acts 1982, 92d assy., 2d reg. sess., pub., ch. 682/p. 236
  26. 1988
    Lost territory Rhea lost to Cumberland to accommodate local residents.
    to Cumberland
    · Tenn. Acts 1988, 95th assy., 2d reg. sess., pub., ch. 477/p. 22

Land and parcels

What the maps cover in Rhea

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

Rhea by the Census

Population
32,870 2020 Census count
Housing units
15,163 2020 Census count
Land area
315 square miles
Water area
21 square miles
People per sq mi
104 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

Rhea 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 Rhea County

When was Rhea County founded?
Rhea County was founded in 1807, formed from Roane County, and named after John Rhea.
What is the county seat of Rhea County?
The county seat of Rhea County is Dayton.
Is there an online parcel map for Rhea County?
Yes. Rhea County publishes a parcel map of 21,780 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Rhea County's boundary or name changed?
Rhea County was created in 1807 from Roane County. Since then the Atlas of Historical County Boundaries records 25 later changes, chiefly involving Hamilton County, Roane County and Bledsoe County.
Is my lot in a flood zone?
We do not have flood maps for Rhea 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