Tennessee · FIPS 47187 · County seat: Franklin
Williamson County, TN GIS & Parcel Viewer
Williamson County, Tennessee parcel data lives on the Williamson County ArcGIS parcel map. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Williamson County parcel map ↗
Opens williamsontn.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Williamson County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | williamsontn.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Franklin |
| Population | 264,460 (2023 Census Bureau estimate) |
| Land area | 583 sq mi |
| FIPS code | 47187 |
Where the parcel data comes from
This map is published by or for Williamson County itself, so it reflects the local parcel layer rather than a third-party copy. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Williamson County viewer
- Click the button above and wait for the Web AppBuilder viewer to load. Some counties show a terms screen first.
- Search by street address, owner or parcel ID if the search box offers those options.
- Click a lot on the map to read its attributes.
- Turn on aerial imagery from the basemap tool and use the layer list to add things like zoning or flood zones when they're published.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
About Williamson County
The U.S. Census Bureau estimated Williamson County's population at 264,460 in 2023, spread over about 583 square miles of land, or roughly 454 people per square mile. Among Tennessee's 95 counties, it is the 6th largest by population. Its county seat is Franklin.
Nearby parcel maps
Williamson County shares a border with the counties below. Each link has its own official map:
- Cheatham County
- Davidson County
- Dickson County
- Hickman County
- Marshall County
- Maury County
- Rutherford County
Before you rely on the lines
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.