Parcel Chartplaces Open the free map

County · code 47131

Obion CountyTennessee

Obion County, Tennessee was created in 1823 from Henry County and is the seat of Union City.

  • Founded1823
  • County seatUnion City
  • Named forObion River
  • Land area545 sq mi + 11 sq mi water
  • Population30,787 2020 Census
  • Parcels mapped19,760 checked 16 October 2026
Open the free map Click any parcel in Obion County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Fulton, KYLakeHickman, KYDyerGibsonWeakley Union City Census outline · seat marked

Where it is

Obion 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 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 CountyObion County Obion
Counties of Tennessee · Obion highlighted

History

Formed in 1823 from Henry County

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

The county was named after the Obion River. Obion gained and lost territory to Weakley County through several boundary adjustments between 1867 and 1889, and lost area to the creation of Lake County in 1870.

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

  1. 1823
    Obion County created Obion created from all of Non-County Area 11 attached to Henry; Non-County Area 11 eliminated.
    from Henry
    · Tenn. Acts 1823, 15th assy., 1st sess., ch. 114/p. 119
  2. 1867
    Gained territory Obion gained from Weakley.
    from Weakley
    · Tenn. Acts 1867, 35th assy., 1st sess., pub., ch. 13, secs. 1-7/pp. 9-11
  3. 1870
    Lost territory Obion lost to creation of Lake.
    to Lake
    · Tenn. Acts 1870, 36th assy., 2d sess., ch. 30, secs. 1-2, 11/pp. 56, 58
  4. 1870
    Gained territory Obion gained from Weakley.
    from Weakley
    · Tenn. Acts 1870, 36th assy., 2d sess., ch. 103/p. 164
  5. 1893
    Lost territory Obion lost to Lake.
    to Lake
    · Tenn. Acts 1893, 48th assy., ch. 173/p. 346
Show all 13 changes (8 more, mostly small adjustments)
  1. 1823
    Obion County created Obion created from all of Non-County Area 11 attached to Henry; Non-County Area 11 eliminated.
    from Henry
    · Tenn. Acts 1823, 15th assy., 1st sess., ch. 114/p. 119
  2. 1823
    Boundary clarified Obion boundaries clarified (no change).
    no change
    · Tenn. Acts 1823, 15th assy., 1st sess., ch. 206/p. 184
  3. 1867
    Gained territory Obion gained from Weakley.
    from Weakley
    · Tenn. Acts 1867, 35th assy., 1st sess., pub., ch. 13, secs. 1-7/pp. 9-11
  4. 1867
    Gained territory Obion gained from Weakley (later repealed).
    from Weakley
    · Tenn. Acts 1867, 35th assy., 1st sess., pub., ch. 20/p. 20
  5. 1868
    Boundary clarified Boundary between Obion and Weakley clarified (later repealed).
    with Weakleyno change
    · Tenn. Acts 1867, 35th assy., 1st sess., pub., ch. 82/p. 108
  6. 1868
    Lost territory Obion lost to Weakley (later repealed).
    to Weakley
    · Tenn. Acts 1868, 35th assy., 2d sess., pub., ch. 5/p. 5
  7. 1870
    Lost territory Obion lost to creation of Lake.
    to Lake
    · Tenn. Acts 1870, 36th assy., 2d sess., ch. 30, secs. 1-2, 11/pp. 56, 58
  8. 1870
    Gained territory Obion gained from Weakley.
    from Weakley
    · Tenn. Acts 1870, 36th assy., 2d sess., ch. 103/p. 164
  9. 1889
    Gained territory Obion gained from Weakley to accommodate local resident.
    from Weakley
    · Tenn. Acts 1889, 46th assy., 1st sess., ch. 76/p. 111
  10. 1893
    Lost territory Obion lost to Lake.
    to Lake
    · Tenn. Acts 1893, 48th assy., ch. 173/p. 346
  11. 1897
    Boundary clarified Boundary between Obion and Lake clarified (no change).
    with Lakeno change
    · Tenn. Acts 1897, 50th assy., ch. 176, secs. 1-2/pp. 384-387
  12. 1925
    Boundary clarified Boundary between Obion and Lake clarified (no change).
    with Lakeno change
    · Tenn. Acts 1925, 64th assy., priv., ch. 548/p. 2110
  13. 1931
    Changed Boundary between Obion and Weakley adjusted when North Fork of Obion River was straightened.
    Weakley
    · Tenn. Acts 1931, 67th assy., priv., ch. 445/p. 1186

Land and parcels

What the maps cover in Obion

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

Obion by the Census

Population
30,787 2020 Census count
Housing units
14,314 2020 Census count
Land area
545 square miles
Water area
11 square miles
People per sq mi
57 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

Obion 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

Open Obion County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Obion County

When was Obion County founded?
Obion County was founded in 1823, formed from Henry County, and named after Obion River.
What is the county seat of Obion County?
The county seat of Obion County is Union City.
Is there an online parcel map for Obion County?
Yes. A public source publishes a parcel map of 19,760 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Obion County's boundary or name changed?
Obion County was created in 1823 from Henry County. Since then the Atlas of Historical County Boundaries records 8 later changes, chiefly involving Weakley County and Lake County.
Is my lot in a flood zone?
We do not have flood maps for Obion 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