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County · code 47115

Marion CountyTennessee

Marion County is a county in Tennessee with its seat in Jasper, formed in 1817. The county was named after Francis Marion.

  • Founded1817
  • County seatJasper
  • Named forFrancis Marion
  • Land area498 sq mi + 14 sq mi water
  • Population28,837 2020 Census
  • Parcels mapped22,347 checked 15 October 2026
Open the free map Click any parcel in Marion County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

GrundyDade, GASequatchieHamiltonFranklinJackson, AL Jasper Census outline · seat marked

Where it is

Marion 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 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 CountyMarion County Marion
Counties of Tennessee · Marion highlighted

History

Formed in 1817 from Bledsoe County

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

Marion County was created on December 26, 1817, from Bledsoe County and non-county area. Over its first decades, Marion County lost and gained territory through multiple boundary adjustments with neighboring counties including Franklin, Bledsoe, Hamilton, Warren, and Grundy, with some changes later repealed or overturned.

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

  1. 1817
    Marion County created Marion created from Bledsoe and Non-County Area 8.
    from Bledsoe
    · Tenn. Acts 1817, 12th assy., ch. 109, sec. 1-2, 8/pp. 113-115; U.S. Stat., vol. 7, p. 156
  2. 1825
    Lost territory Marion lost to Franklin.
    to Franklin
    · Tenn. Acts 1825, 16th assy., reg. sess., priv., ch. 188/p. 214
  3. 1833
    Exchanged territory Marion exchanged with Hamilton.
    with Hamilton
    · Tenn. Acts 1833, 20th assy., pub., ch. 16/pp. 10-12
  4. 1840
    Gained territory Marion implicitly gained from Warren.
    from Warren
    · Tenn. Acts 1839, 23d assy., ch. 59, secs. 1, 14/pp. 130, 134
  5. 1854
    Lost territory Marion lost to Grundy.
    to Grundy
    · Tenn. Acts 1853, 30th assy., ch. 181/p. 250
Show all 23 changes (18 more, mostly small adjustments)
  1. 1817
    Marion County created Marion created from Bledsoe and Non-County Area 8.
    from Bledsoe
    · Tenn. Acts 1817, 12th assy., ch. 109, sec. 1-2, 8/pp. 113-115; U.S. Stat., vol. 7, p. 156
  2. 1825
    Lost territory Marion lost to Franklin.
    to Franklin
    · Tenn. Acts 1825, 16th assy., reg. sess., priv., ch. 188/p. 214
  3. 1829
    Changed Boundary between Marion and Hamilton adjusted.
    Hamilton
    · Tenn. Acts 1829, 18th assy., priv., ch. 141/p. 109
  4. 1832
    Lost territory Marion lost to Bledsoe to accommodate local residents (later repealed); boundary change is an estimated line.
    to Bledsoe
    · Tenn. Acts 1832, 19th assy., called sess., priv., ch. 46/p. 36
  5. 1833
    Exchanged territory Marion exchanged with Hamilton.
    with Hamilton
    · Tenn. Acts 1833, 20th assy., pub., ch. 16/pp. 10-12
  6. 1836
    Gained territory Marion gained from Hamilton (later repealed).
    from Hamilton
    · Tenn. Acts 1835, 21st assy., 1st sess., loc., ch. 135/p. 263
  7. 1836
    Gained territory Marion gained from Bledsoe (later repealed); boundary change is estimated line.
    from Bledsoe
    · Tenn. Acts 1835, 21st assy., 1st sess., loc., ch. 66/p. 196
  8. 1840
    Gained territory Marion implicitly gained from Warren.
    from Warren
    · Tenn. Acts 1839, 23d assy., ch. 59, secs. 1, 14/pp. 130, 134
  9. 1842
    Lost territory Marion lost to Hamilton (later repealed).
    to Hamilton
    · Tenn. Acts 1841, 24th assy., 1st sess., ch. 179/p. 208
  10. 1854
    Lost territory Marion lost to Grundy.
    to Grundy
    · Tenn. Acts 1853, 30th assy., ch. 181/p. 250
  11. 1856
    Lost territory Marion lost to Grundy (later overturned).
    to Grundy
    · Tenn. Acts 1855, 31st assy., ch. 248/p. 503
  12. 1857
    Lost territory Marion lost to Hamilton.
    to Hamilton
    · Tenn. Acts 1855, 31st assy., ch. 162, secs. 3-4/p. 246
  13. 1858
    Gained territory Marion gained from Grundy when Tennessee Supreme Court overturned act of 27 February 1856.
    from Grundy
    · "Marion County v. Grundy County" in Tenn. Rpts., 37:490-493 [Sneed, vol. 5]
  14. 1870
    Lost territory Marion lost to Grundy by authority of article 10, section 4 of the 1870 Tennessee State Constitution.
    to Grundy
    · Laska, 137-138, 161; Swindler, 9:184
  15. 1873
    Changed Legislature authorized Sequatchie to gain from Marion; gain did not take effect.
    Sequatchie
    · Tenn. Acts 1873, 38th assy., ch. 105/p. 140
  16. 1877
    Changed Legislature authorized Sequatchie to gain from Marion; gain did not take effect.
    Sequatchie
    · Tenn. Acts 1877, 40th assy., 1st sess., ch. 138/p. 163
  17. 1891
    Lost territory Marion lost small area to Franklin.
    to Franklin
    · Tenn. Acts 1891, 47th assy., ch. 143/p. 314
  18. 1893
    Lost territory Marion lost to Sequatchie.
    to Sequatchie
    · Tenn. Acts 1893, 48th assy., ch. 176, sec. 1/p. 359
  19. 1897
    Changed Boundary between Marion and Grundy adjusted at town of Monteagle.
    Grundy
    · Tenn. Acts 1897, 50th assy., ch. 312/p. 658
  20. 1903
    Changed Boundary between Marion and Grundy adjusted.
    Grundy
    · Tenn. Acts 1903, 53d assy., ch. 448/p. 1265
  21. 1917
    Lost territory Marion lost small area to Hamilton (later repealed).
    to Hamilton
    · Tenn. Acts 1917, 60th assy., priv., ch. 366/p. 1116
  22. c. 1917
    Lost territory Marion lost to Hamilton (later repealed).
    to Hamilton
    · Tenn. Acts 1917, 60th assy., priv., ch. 477/p. 1499
  23. 1919
    Gained territory Marion gained from Hamilton (later repealed).
    from Hamilton
    · Tenn. Acts 1919, 61st assy., priv., ch. 44/p. 78

Land and parcels

What the maps cover in Marion

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

Marion by the Census

Population
28,837 2020 Census count
Housing units
13,578 2020 Census count
Land area
498 square miles
Water area
14 square miles
People per sq mi
58 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

Marion 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 Marion County

When was Marion County founded?
Marion County was founded in 1817, formed from Bledsoe County, and named after Francis Marion.
What is the county seat of Marion County?
The county seat of Marion County is Jasper.
Is there an online parcel map for Marion County?
Yes. A public source publishes a parcel map of 22,347 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Marion County's boundary or name changed?
Marion County was created in 1817 from Bledsoe County. Since then the Atlas of Historical County Boundaries records 22 later changes, most of them small boundary adjustments, chiefly involving Hamilton County, Grundy County and Sequatchie County.
Is my lot in a flood zone?
We do not have flood maps for Marion 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