Demographics of Unicoi County, Tennessee

Unicoi County, Tennessee had 17,856 people on July 1, 2025, by the Census Bureau’s estimate: −17 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.

Unicoi County, in four figures

17,856
Population: July 1, 2025, Vintage 2025 estimate.; −0.1%
Change since July 2020: −17 people.; 46.9 ±1.0
Median age: ACS 2020–⁠2024.; $52,218 ±$6,675
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.

Unicoi County, Tennessee's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Unicoi 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).

Source: The Census Bureau

About this chart

The figures

Unicoi County, Tennessee's population shrank 0.1% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Unicoi 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	17,873	100.0	100.0
2021	17,617	98.6	100.2
2022	17,607	98.5	100.7
2023	17,823	99.7	101.6
2024	17,925	100.3	102.5
2025	17,856	99.9	103.1

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Population of Unicoi 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	17,873	−38	−34	+1	−8
2021	17,617	−256	−255	+13	−28
2022	17,607	−10	−215	+4	+195
2023	17,823	+216	−160	+2	+368
2024	17,925	+102	−144	+20	+223
2025	17,856	−69	−144	−6	+81

Age, 2020–2024

The median age is 46.9 ±1.0: for men 46.3 ±2.8 and for women 47.0 ±1.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Unicoi County by age, ACS 2020–2024
Age	People	Share	Tennessee	United States
Under 5	780 ±216	4.4% ±1.2	5.8% ±<0.1	5.6% ±<0.1
5 to 17	2,389 ±235	13.5% ±1.3	16.4% ±0.1	16.3% ±<0.1
18 to 24	1,390 ±300	7.8% ±1.7	8.9% ±0.1	9.1% ±<0.1
25 to 44	4,026 ±287	22.7% ±1.6	26.7% ±0.1	26.9% ±<0.1
45 to 64	4,955 ±348	27.9% ±2.0	25.2% ±0.1	24.8% ±<0.1
65 and over	4,216 ±444	23.7% ±2.5	17.1% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $52,218 ±$6,675, and income per person $30,307 ±$1,949, in 2024 dollars. The median is $69,595 ±$429 in Tennessee and $80,734 ±$166 in the United States.

Households by income

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Households in Unicoi County by income, ACS 2020–2024
Household income	Households	Share	Tennessee	United States
Under $25,000	1,875 ±351	24.1% ±4.4	16.6% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,838 ±348	23.6% ±4.4	19.4% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,355 ±324	17.4% ±4.1	17.3% ±0.2	15.5% ±<0.1
$75,000 to $99,999	894 ±197	11.5% ±2.5	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,045 ±234	13.4% ±3.0	16.8% ±0.2	17.5% ±<0.1
$150,000 to $199,999	456 ±164	5.8% ±2.1	7.7% ±0.1	9.6% ±<0.1
$200,000 or more	332 ±137	4.3% ±1.8	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).

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Poverty rate in Unicoi County by age, ACS 2020–2024
Age	Below poverty	Rate	Tennessee	United States
All ages	2,480 ±583	14.3% ±3.4	13.8% ±0.2	12.5% ±0.1
Under 18	617 ±247	20.3% ±7.7	18.8% ±0.4	16.1% ±0.1
18 to 59	1,261 ±310	14.6% ±3.5	12.7% ±0.2	11.6% ±0.1
60 and over	602 ±218	10.7% ±3.8	11.4% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Unicoi County, ACS 2020–2024
Measure	Unicoi County	Tennessee	United States
Housing units	8,749 ±24	3,143,670 ±903	143,775,355 ±10,234
Occupied	89.1% ±3.1	89.8% ±0.2	89.9% ±0.1
Vacant	10.9% ±3.1	10.2% ±0.2	10.1% ±0.1
Owner occupied	72.9% ±4.2	66.9% ±0.3	65.2% ±0.3
Renter occupied	27.1% ±4.6	33.1% ±0.3	34.8% ±0.1
Median home value	$189,600 ±$16,867	$286,700 ±$1,492	$332,700 ±$236
Median gross rent	$750 ±$197	$1,189 ±$7	$1,413 ±$2
Median year built	1977 ±2	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

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People in Unicoi County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Tennessee	United States
Hispanic or Latino	1,188 ±0	6.7% ±<0.1	7.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	16,005 ±99	90.1% ±0.6	71.0% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	48 to 192	0.3% to 1.1%	15.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 63	0% to 0.4%	1.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	1 to 85	< 0.1% to 0.5%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 22	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 22	0% to 0.1%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	375 ±142	2.1% ±0.8	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).

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People in Unicoi County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Tennessee	United States
Born in the state	12,101 ±726	68.2% ±4.1	57.2% ±0.2	57.3% ±<0.1
Born in another state	5,392 ±682	30.4% ±3.8	35.7% ±0.2	26.9% ±<0.1
Born a citizen outside the states	0 to 22	0% to 0.1%	1.0% ±<0.1	1.7% ±<0.1
Born abroad	108 to 418	0.6% to 2.4%	6.1% ±0.1	14.1% ±<0.1
Naturalized citizens	80 to 316	0.5% to 1.8%	2.4% ±0.1	7.4% ±<0.1
Not citizens	0 to 163	0% to 0.9%	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%.

Unicoi County among the counties of Tennessee

74th of 95 by population, July 2025. Every one is listed on the Tennessee page.

Counties of Tennessee near Unicoi County in population, July 2025
County	July 2025	Change since 2020
Humphreys County	19,646	+3.4%
Johnson County	18,718	+4.1%
Polk County	18,592	+5.9%
Chester County	17,994	+3.5%
Sequatchie County	17,861	+12.7%
Unicoi County	17,856	−0.1%
Haywood County	17,042	−4.4%
Wayne County	16,416	+1.2%
Benton County	16,183	+2.1%
Bledsoe County	15,920	+6.5%
Cannon County	15,296	+5.0%

Elsewhere on the site

Rankings this appears in

No. 4 Counties in Tennessee by median age
No. 12 Counties in Tennessee by poverty rate
No. 20 Counties in Tennessee by Hispanic or Latino share
No. 22 Counties in Tennessee by median rent
No. 23 Counties in Tennessee by homeownership rate
No. 30 Counties in Tennessee by per capita income

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

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026