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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

Population 204,424
Median Household Income $90,301
Median Home Value $393,100
Poverty Rate 8.8%
Unemployment Rate 3.6%
Median Age 39.8 years
Homeownership Rate 72.0%
Affordability Ratio 4.4x
Bachelor's Degree+ 33.6%
High School Graduation 92.3%
Cities/Places 16
Population 204,424 8th of 95
Median Income $90,301 30% higher than state
Poverty Rate 8.8%
Unemployment 3.6%

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.

Metric2019–20232020–2024Change
Population200,553204,424+1.9%
Median household income$86,005$90,301+5.0%
Median home value$364,000$393,100+8.0%

Economy & Housing

Household Income Distribution

Under $25K 11.2%
$25K-$50K 15.1%
$50K-$100K 29.1%
$100K+ 44.6%
Detailed income brackets
Under $10K
3.2%
$10K-$15K
2.0%
$15K-$20K
2.5%
$20K-$25K
3.5%
$25K-$30K
2.4%
$30K-$35K
3.3%
$35K-$40K
3.4%
$40K-$45K
3.0%
$45K-$50K
3.0%
$50K-$60K
6.1%
$60K-$75K
8.4%
$75K-$100K
14.6%
$100K-$125K
13.3%
$125K-$150K
8.6%
$150K-$200K
10.8%
$200K+
12.0%

Employment

3.6% Unemployment Rate State: 4.7%|National: 5.2%
67.4% Labor Force Participation

Housing Overview

Owner 72.0%
Renter 28.0%
Affordability Index Moderate
4.4x home value to income ratio
Median gross rent $1,424/mo 18.9% of median household income annually

People & Demographics

Diversity Index

37out of 100
Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 46 | National average: 61

Education

Cities & Places in Sumner County

CityPopulationMedian IncomePovertyHome Value
Hendersonville63,091$97,2006.3%$430,700
Gallatin48,532$77,51813.0%$372,000
White House14,631$90,0197.0%$344,800
Portland13,449$72,64711.2%$282,200
Millersville5,836$71,78910.5%$309,900
Shackle Island4,404$130,1256.7%$540,400
Westmoreland2,845$59,40513.9%$241,700
Castalian Springs678$57,9179.3%$283,100
Walnut Grove (Sumner County)575$101,8060.0%$502,300
Cottontown374N/A3.7%$441,700
Fairfield351N/A24.5%N/A
Bethpage289$100,8596.9%$218,600
Graball288$88,3200.0%$407,100
Oak Grove (Sumner County)248$104,21123.8%$243,100
New Deal226$55,35712.8%$261,500
Mitchellville176$40,00033.0%$157,800

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.