What is the county seat of Trousdale County?

The county seat of Trousdale County is Hartsville.

Is there an online parcel map for Trousdale County?

Yes. Tennessee Comptroller of the Treasury, Division of Property Assessments (published by the Office of Information Resources) publishes a parcel map of 5,463 parcels, rated official here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Trousdale County's boundary or name changed?

Trousdale County was created in 1870 from Macon County, Smith County, Sumner County and Wilson County. Since then the Atlas of Historical County Boundaries records 13 later changes, most of them small boundary adjustments, chiefly involving Wilson County, Macon County and Smith County.

Who issues building permits in Trousdale County?

The county's page on building permits: BUILDING PERMITS. Inside a city or town, ask that city first.

Is my lot in a flood zone?

We do not have flood maps for Trousdale County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 47169

Trousdale CountyTennessee

Trousdale County is a county in Tennessee with its seat in Hartsville, formed on July 12, 1870.

Founded1870
County seatHartsville
Named forWilliam Trousdale
Land area114 sq mi + 2.3 sq mi water
Population11,615 2020 Census
Parcels mapped5,463 checked 14 October 2026

Open the free map Click any parcel in Trousdale County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1870 from Macon County, Smith County, Sumner County and Wilson County

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

Trousdale County was created from parts of Macon, Smith, Sumner, and Wilson counties and named after William Trousdale. The county lost much of its territory two years after its creation when the Tennessee Supreme Court declared its boundaries null and void, and subsequent boundary adjustments with neighboring counties continued through the early 1960s.

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

1870
Trousdale County created Trousdale created from Macon, Smith, Sumner, and Wilson.
from Macon from Smith from Sumner from Wilson
12 July 1870 · Tenn. Acts 1870, 36th assy., 2d sess., ch. 27, secs. 1-2, 4/pp. 47-48; Goodspeed [J], 843-844
1872
Lost territory Trousdale lost to Macon and Smith when Tennessee Supreme Court declared Trousdale boundaries null and void.
to Macon to Smith
1 December 1872 · "Macon and Smith Counties v. Trousdale County" in Tenn. Rpts. 61:1-11
1879
Lost territory Trousdale lost to Wilson to accommodate local resident.
to Wilson
10 March 1879 · Tenn. Acts 1879, 41st assy., 1st sess., ch. 60/p. 79
1879
Gained territory Trousdale gained from Wilson to accommodate local residents.
from Wilson
25 March 1879 · Tenn. Acts 1879, 41st assy., 1st sess., ch. 137, secs. 1-17/pp. 174-177
1885
Gained territory Trousdale gained from Wilson to accommodate local resident.
from Wilson
9 April 1885 · Tenn. Acts 1885, 44th assy., ch. 146/p. 256

Show all 14 changes (9 more, mostly small adjustments)

1870
Trousdale County created Trousdale created from Macon, Smith, Sumner, and Wilson.
from Macon from Smith from Sumner from Wilson
12 July 1870 · Tenn. Acts 1870, 36th assy., 2d sess., ch. 27, secs. 1-2, 4/pp. 47-48; Goodspeed [J], 843-844
1872
Lost territory Trousdale lost to Macon and Smith when Tennessee Supreme Court declared Trousdale boundaries null and void.
to Macon to Smith
1 December 1872 · "Macon and Smith Counties v. Trousdale County" in Tenn. Rpts. 61:1-11
1879
Lost territory Trousdale lost to Wilson to accommodate local resident.
to Wilson
10 March 1879 · Tenn. Acts 1879, 41st assy., 1st sess., ch. 60/p. 79
1879
Gained territory Trousdale gained from Wilson to accommodate local residents.
from Wilson
25 March 1879 · Tenn. Acts 1879, 41st assy., 1st sess., ch. 137, secs. 1-17/pp. 174-177
1885
Gained territory Trousdale gained from Wilson to accommodate local resident.
from Wilson
9 April 1885 · Tenn. Acts 1885, 44th assy., ch. 146/p. 256
1889
Gained territory Trousdale gained from Macon and Sumner to accommodate local resident..
from Macon from Sumner
26 March 1889 · Tenn. Acts 1889, 46th assy., 1st sess., ch. 118/p. 222
1905
Gained territory Trousdale gained from Smith to accommodate local resident.
from Smith
25 March 1905 · Tenn. Acts 1905, 54th assy., ch. 86/p. 197
1909
Lost territory Trousdale lost to Wilson to accommodate local resident.
to Wilson
1 May 1909 · Tenn. Acts 1909, 56th assy., ch. 514/p. 1842
1919
Gained territory Trousdale gained from Macon to accommodate local residents.
from Macon
17 April 1919 · Tenn. Acts 1919, 61st assy., priv., ch. 787/p. 2435
1929
Gained territory Trousdale gained small area from Sumner to accommodate local resident.
from Sumner
13 April 1929 · Tenn. Acts 1929, 66th assy., priv., ch. 707/p. 2132
1961
Gained territory Trousdale gained small area from Macon.
from Macon
10 March 1961 · Tenn. Acts 1961, 82d assy., priv., ch. 215/p. 741
1961
Gained territory Trousdale gained small area from Sumner.
from Sumner
16 March 1961 · Tenn. Acts 1961, 82d assy., priv., ch. 297/p. 1059
1972
Gained territory Trousdale gained small area from Smith.
from Smith
6 April 1972 · Tenn. Acts 1972, 87th assy., 2d reg. sess., pub., ch. 713/p. 774
1981
Gained territory Trousdale gained small area from Wilson.
from Wilson
30 April 1981 · Tenn. Acts 1981, 92d assy., 1st reg. sess., pub., ch. 268/p. 354

Land and parcels

What the maps cover in Trousdale

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

Parcels Official

Lot lines and tax-map numbers for 5,463 parcels from Tennessee Comptroller of the Treasury, Division of Property Assessments (published by the Office of Information Resources). Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 10 September 2026 · checked 14 October 2026
Address points Official

One point per address, 6,337 in all from TECB and local 911 districts via TNMap (tnmap_oir).
edited 6 October 2026 · checked 14 October 2026
Buildings Reference

Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026

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

Trousdale by the Census

Population

11,615 2020 Census count

Housing units

3,749 2020 Census count

Land area

114 square miles

Water area

2.3 square miles

People per sq mi

102 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

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Permits

BUILDING PERMITSfrom trousdalecounty.portal.iworq.net
https://tdec.tn.gov/septicfrom tdec.tn.gov

Zoning and code

Planning and zoning 615-374-5066from trousdalecountytn.gov · checked 13 October 2026
County Codes & Ordinancesfrom trousdalecountytn.gov
Municipal Codefrom trousdalecountytn.gov
Codes and Zoningfrom trousdalecountytn.gov
Planning Commissionfrom trousdalecountytn.gov

County government

County government
The official website of Trousdale County.
trousdalecountytn.gov

See your own lot on these maps

Open Trousdale 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 Trousdale County

When was Trousdale County founded?: Trousdale County was founded in 1870, formed from Macon County, Smith County, Sumner County and Wilson County, and named after William Trousdale.
What is the county seat of Trousdale County?: The county seat of Trousdale County is Hartsville.
Is there an online parcel map for Trousdale County?: Yes. Tennessee Comptroller of the Treasury, Division of Property Assessments (published by the Office of Information Resources) publishes a parcel map of 5,463 parcels, rated official here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Trousdale County's boundary or name changed?: Trousdale County was created in 1870 from Macon County, Smith County, Sumner County and Wilson County. Since then the Atlas of Historical County Boundaries records 13 later changes, most of them small boundary adjustments, chiefly involving Wilson County, Macon County and Smith County.
Who issues building permits in Trousdale County?: The county's page on building permits: BUILDING PERMITS. Inside a city or town, ask that city first.
Is my lot in a flood zone?: We do not have flood maps for Trousdale County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby