Sumner County, Tennessee Demographics 2026
Sumner County, Tennessee has a population of 204,424, the 8th most populous county in Tennessee. The median household income is $90,301 and the median home value is $393,100. The poverty rate is 8.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Sumner County Quick Facts
How Sumner County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 200,553 | 204,424 | +1.9% |
| Median household income | $86,005 | $90,301 | +5.0% |
| Median home value | $364,000 | $393,100 | +8.0% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 46 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Sumner County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Hendersonville | 63,091 | $97,200 | 6.3% | $430,700 |
| Gallatin | 48,532 | $77,518 | 13.0% | $372,000 |
| White House | 14,631 | $90,019 | 7.0% | $344,800 |
| Portland | 13,449 | $72,647 | 11.2% | $282,200 |
| Millersville | 5,836 | $71,789 | 10.5% | $309,900 |
| Shackle Island | 4,404 | $130,125 | 6.7% | $540,400 |
| Westmoreland | 2,845 | $59,405 | 13.9% | $241,700 |
| Castalian Springs | 678 | $57,917 | 9.3% | $283,100 |
| Walnut Grove (Sumner County) | 575 | $101,806 | 0.0% | $502,300 |
| Cottontown | 374 | N/A | 3.7% | $441,700 |
| Fairfield | 351 | N/A | 24.5% | N/A |
| Bethpage | 289 | $100,859 | 6.9% | $218,600 |
| Graball | 288 | $88,320 | 0.0% | $407,100 |
| Oak Grove (Sumner County) | 248 | $104,211 | 23.8% | $243,100 |
| New Deal | 226 | $55,357 | 12.8% | $261,500 |
| Mitchellville | 176 | $40,000 | 33.0% | $157,800 |
Explore Tennessee Rankings
Population Overview
Sumner County is located in Tennessee with a total population of 204,424. It is the 8th most populous county out of 95 in Tennessee. The county encompasses 16 Census-designated places.
Age Demographics
The median age in Sumner County is 39.8 years. This is 2% higher than the state median of 38.9 years.
Economy, Income & Housing
The median household income in Sumner County is $90,301. This is 30% higher than the state median of $69,595. It is also 12% higher than the national median of $80,734. The poverty rate stands at 8.8%. This is 36% lower than the state poverty rate of 13.8%. The unemployment rate is 3.6%. This is 24% lower than the state rate of 4.7%. The median home value is $393,100. Housing costs are 37% higher than the state median of $286,700. The home-value-to-income ratio is 4.4x. 72.0% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 66.9%.
Race & Ethnicity
The largest racial or ethnic group in Sumner County is White (non-Hispanic), making up 78.6% of the population. Black or African American residents account for 8.3%.
Education
33.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Sumner County in the top 10% of all counties in the state for educational attainment. This is 8% higher than the state rate of 31.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.3%.
Data Sources & Methodology
All figures for Sumner County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Tennessee and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Sumner County, Tennessee?
Sumner County has a population of 204,424, making it the 8th most populous county in Tennessee.
What is the median income in Sumner County?
The median household income in Sumner County is $90,301 with a poverty rate of 8.8%.
How many cities are in Sumner County, Tennessee?
Sumner County contains 16 Census-designated places.