NASHVILLE, TN - The Tennessee Comptroller’s Office has rolled out a new Municipal Boundaries Dashboard, and it’s already drawing attention here in Rutherford County. The interactive tool lets anyone explore the boundaries of all 345 cities and towns across the state, showing annexations and deannexations reported since 2016. Think of it as a satellite-powered window into how Tennessee’s communities are growing and changing.

For Rutherford County, the numbers tell a clear story. Murfreesboro tops the list with 808.15 acres annexed, reflecting the city’s steady expansion. Eagleville comes next with 559.11 acres, while Smyrna has added just 5.76 acres. La Vergne, meanwhile, hasn’t annexed any new land in the past decade. None of the county’s municipalities have de-annexed property, so the growth has only moved in one direction.

The Tennessee Municipal Boundaries Dashboard shows that Murfreesboro leads the state in annexed land since 2016, with more than 800 acres added. Other top annexing cities include Eagleville, Mt. Juliet, Dickson, Sevierville, Morristown, Kingsport, Bristol, Fairview, and Smyrna, each reporting varying totals ranging from hundreds of acres to just a few. And yes, three of the top ten are here in Rutherford County. 

Here’s a closer look at the top 10 cities based on the most recent dashboard data:

1. Murfreesboro – Annexed 808.15 acres, the largest total in Tennessee since 2016.
2. Eagleville – Annexed 559.11 acres, ranking second statewide.
3. Mt. Juliet – Multiple annexations, totaling over 400 acres.
4. Dickson – Several annexations in 2025 alone, adding hundreds of acres.
5. Sevierville – Annexed significant parcels in 2025, estimated at 300+ acres.
6. Morristown – Annexed notable tracts in 2025, around 250 acres.
7. Kingsport – Annexed large parcels in 2025, approximately 200 acres.
8. Bristol – Annexed multiple tracts in 2025, totaling 150+ acres.
9. Fairview – Annexed two parcels in 2025, together about 120 acres.
10. Smyrna – Annexed 5.76 acres, a smaller but still recorded addition.

Comptroller Jason Mumpower says the dashboard is about more than maps—it’s about transparency. “This new dashboard brings Tennessee’s cities and towns into clearer focus. It improves accuracy for everyone who relies on up-to-date boundary information, from local governments to the U.S. Census Bureau.”

That accuracy matters. Municipal boundaries feed directly into population counts, which in turn determine how state-shared tax revenues are distributed. In other words, the clearer the boundaries, the fairer the funding. Local governments depend on those dollars to provide services, and the Comptroller’s Office wants to make sure no city or county is shortchanged.

The system uses Geographic Information System (GIS) technology to display boundaries on a satellite map, making it easy for officials, property owners, and residents to visualize changes. State law requires municipalities to notify the Comptroller’s Office and the local property assessor whenever territory is annexed or deannexed. If corrections or updates are needed, city and town officials can email them directly to the Comptroller’s Office.

Mumpower calls the project another example of innovation. “By combining GIS technology with accurate reporting, we’re making Tennessee’s municipal data more accessible than ever,” he said.

For anyone curious about how their town’s boundaries have shifted—or stayed the same—the dashboard is open to the public at tncot.cc/cities. It’s a new way to see Tennessee’s communities in sharper detail, and for Rutherford County, it’s a reminder of how much local growth continues to shape the map.