Demographics of Smith County, Tennessee

Smith County, Tennessee had 20,981 people on July 1, 2025, by the Census Bureau’s estimate: +1,018 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Smith County, in four figures

20,981
Population: July 1, 2025, Vintage 2025 estimate.; +5.1%
Change since July 2020: +1,018 people.; 40.6 ±0.4
Median age: ACS 2020–⁠2024.; $66,293 ±$4,840
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Smith County, Tennessee's population grew 5.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Smith County, Tennessee's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Smith County, Tennessee's population grew 5.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Smith County, Tennessee's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	19,963	100.0	100.0
2021	20,175	101.1	100.2
2022	20,471	102.5	100.7
2023	20,538	102.9	101.6
2024	20,785	104.1	102.5
2025	20,981	105.1	103.1

3 more columns on a wider screen

Population of Smith County, Tennessee on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	19,963	+57	0	0	+56
2021	20,175	+212	−68	+4	+271
2022	20,471	+296	−53	+6	+327
2023	20,538	+67	−69	+21	+117
2024	20,785	+247	−33	+12	+268
2025	20,981	+196	−33	+4	+227

Age, 2020–2024

The median age is 40.6 ±0.4: for men 40.0 ±0.6 and for women 41.7 ±1.2. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Smith County by age, ACS 2020–2024
Age	People	Share	Tennessee	United States
Under 5	1,114 ±78	5.5% ±0.4	5.8% ±<0.1	5.6% ±<0.1
5 to 17	3,452 ±272	16.9% ±1.3	16.4% ±0.1	16.3% ±<0.1
18 to 24	1,472 ±157	7.2% ±0.8	8.9% ±0.1	9.1% ±<0.1
25 to 44	5,139 ±272	25.2% ±1.3	26.7% ±0.1	26.9% ±<0.1
45 to 64	5,813 ±318	28.5% ±1.6	25.2% ±0.1	24.8% ±<0.1
65 and over	3,399 ±292	16.7% ±1.4	17.1% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $66,293 ±$4,840, and income per person $33,386 ±$1,884, in 2024 dollars. The median is $69,595 ±$429 in Tennessee and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Smith County by income, ACS 2020–2024
Household income	Households	Share	Tennessee	United States
Under $25,000	1,174 ±226	14.8% ±2.8	16.6% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,571 ±265	19.8% ±3.3	19.4% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,640 ±259	20.7% ±3.2	17.3% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,096 ±184	13.8% ±2.3	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,381 ±212	17.4% ±2.6	16.8% ±0.2	17.5% ±<0.1
$150,000 to $199,999	589 ±122	7.4% ±1.5	7.7% ±0.1	9.6% ±<0.1
$200,000 or more	481 ±127	6.1% ±1.6	9.0% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in Smith County by age, ACS 2020–2024
Age	Below poverty	Rate	Tennessee	United States
All ages	2,022 ±530	10.0% ±2.6	13.8% ±0.2	12.5% ±0.1
Under 18	392 ±155	8.7% ±3.4	18.8% ±0.4	16.1% ±0.1
18 to 59	943 ±296	8.7% ±2.7	12.7% ±0.2	11.6% ±0.1
60 and over	687 ±208	14.2% ±4.2	11.4% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Smith County, ACS 2020–2024
Measure	Smith County	Tennessee	United States
Housing units	8,752 ±25	3,143,670 ±903	143,775,355 ±10,234
Occupied	90.6% ±2.1	89.8% ±0.2	89.9% ±0.1
Vacant	9.4% ±2.1	10.2% ±0.2	10.1% ±0.1
Owner occupied	76.9% ±2.6	66.9% ±0.3	65.2% ±0.3
Renter occupied	23.1% ±3.0	33.1% ±0.3	34.8% ±0.1
Median home value	$243,800 ±$10,339	$286,700 ±$1,492	$332,700 ±$236
Median gross rent	$922 ±$67	$1,189 ±$7	$1,413 ±$2
Median year built	1988 ±4	1987 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in Smith County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Tennessee	United States
Hispanic or Latino	641 ±0	3.1% ±<0.1	7.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	18,356 ±185	90.0% ±0.9	71.0% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	379 ±92	1.9% ±0.5	15.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	39 to 121	0.2% to 0.6%	1.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 14	0% to 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 90	0% to 0.4%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 29	0% to 0.1%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	880 ±209	4.3% ±1.0	3.7% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in Smith County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Tennessee	United States
Born in the state	14,669 ±472	71.9% ±2.3	57.2% ±0.2	57.3% ±<0.1
Born in another state	5,286 ±475	25.9% ±2.3	35.7% ±0.2	26.9% ±<0.1
Born a citizen outside the states	32 to 224	0.2% to 1.1%	1.0% ±<0.1	1.7% ±<0.1
Born abroad	306 ±110	1.5% ±0.5	6.1% ±0.1	14.1% ±<0.1
Naturalized citizens	26 to 118	0.1% to 0.6%	2.4% ±0.1	7.4% ±<0.1
Not citizens	115 to 353	0.6% to 1.7%	3.7% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Smith County among the counties of Tennessee

67th of 95 by population, July 2025. Every one is listed on the Tennessee page.

Counties of Tennessee near Smith County in population, July 2025
County	July 2025	Change since 2020
Overton County	23,787	+5.3%
Scott County	22,671	+3.6%
Morgan County	22,160	+5.3%
DeKalb County	21,873	+8.4%
Union County	21,450	+8.1%
Smith County	20,981	+5.1%
Fentress County	20,322	+9.7%
Humphreys County	19,646	+3.4%
Johnson County	18,718	+4.1%
Polk County	18,592	+5.9%
Chester County	17,994	+3.5%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026