Lewis County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 84th-largest in Tennessee
The population of Lewis County, Tennessee is 12,784 as of the 2023 American Community Survey, making it the 84th-largest county in Tennessee. The median household income is $49,477, the median home value is $157,800, and the median age is 42.2.
The population of Lewis County has grown 10.2% since 2010 (12,175 → 13,418), a +0.70% annualized rate.
12,784
Population
+0.70%
Annual growth
45
People / sq mi
$49,477
Median Income
$157,800
Median Home Value
Lewis County covers 282 sq mi of land at 45.3 people per square mile.
About Lewis County, TN
Educational attainment is the headline number in Lewis County: 10.9% of adults 25 and older have a four-year degree. Lewis County is a county in Tennessee with a population of 12,784.
Incomes run on the lower side: a median household income of $49,477, below the US median of $78,538. The poverty rate is 12.9%, close to the national 12.4%. Median home value is $157,800, with typical rent around $735.
College credentials are comparatively rare here: just 10.9%, below the national 35.0%. Remote work is below the national 14.0% at 6.8%, and the average commute runs about 36 minutes each way.
Lewis County Population History (2010-2024)
The county of Lewis County had a population of 12,175 in 2010 and 13,418 in 2024, a 10.2% growth over 14 years. The peak was 13,418 in 2024. Average annual growth rate: 0.70%.
13,418
Population (2024)
12,175
Population (2010)
13,418
Peak (2024)
0.70%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,175 |
| 2011 | 12,151 |
| 2012 | 11,950 |
| 2013 | 12,001 |
| 2014 | 11,893 |
| 2015 | 11,884 |
| 2016 | 11,894 |
| 2017 | 12,028 |
| 2018 | 12,105 |
| 2019 | 12,267 |
| 2020 | 12,607 |
| 2021 | 12,856 |
| 2022 | 12,934 |
| 2023 | 13,146 |
| 2024 | 13,418 |
Race & Ethnicity
| White | 93.3% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.9% |
| Two or More Races | 0.0% |
Age & Sex
42.2
Median Age
50.2%
Female
49.8%
Male
20.5%
Age 65+
Age Distribution
Children (under 15): 17.5% · Seniors (65+): 20.5%
Income & Poverty
| Median household income | $49,477$-17,620 vs state |
| Mean household income | $69,487 |
| Per-capita income | $29,149 |
| Poverty rate | 12.9%+3.0% vs state |
| Unemployment rate | 1.9% |
| Employment-to-population | 53.5% |
Top Industries by Employment
The largest employment sector in Lewis County is professional & business services, accounting for 20.7% of workers.
How residents commute
0.0%
Drive alone
0.7%
Carpool
83.5%
Public transit
6.8%
Work from home
35.8 min
Avg commute
Housing
$157,800$-99,000 vs state
Median home value
$735
Median rent
80.5%
Homeownership rate
5,746
Total housing units
89.7%
Occupied
10.3%
Vacant
19.5%
Renter-occupied
Social & access
88.9%
With health insurance
89.1%
With broadband internet
29.0%
Foreign-born
7.8%
Veterans (18+)
18.9%
With a disability
98.1%
Speak language other than English at home
Education
85.4%
High School+
10.9%
Bachelor's+
Largest cities in Tennessee
Other counties in Tennessee
Part of Tennessee
Metro areas in Tennessee
County rankings
Frequently Asked Questions
Lewis County, Tennessee has a population of 12,784 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 84th-largest county in Tennessee. Population density is 45 people per square mile.
The population of Lewis County has grown 10.2% since 2010 (12,175 → 13,418), a +0.70% annualized rate.
The median household income in Lewis County, Tennessee is $49,477, with mean (average) household income of $69,487 and per-capita income of $29,149. 12.9% of residents live below the federal poverty level.
In Lewis County, the largest racial and ethnic groups are White (93.3%), Hispanic or Latino (2.9%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Lewis County, Tennessee is 42.2 years. Residents are 50.2% female and 49.8% male.
The median home value in Lewis County is $157,800 and median monthly rent is $735. 80.5% of occupied housing units are owner-occupied. The county has 5,746 total housing units, 10.3% of which are vacant.
The largest employment sector in Lewis County, Tennessee is professional, scientific, and management services, employing 20.7% of workers. The unemployment rate is 1.9%.
Nashville-Davidson is among the largest cities associated with Lewis County, Tennessee, with a population of 684,298.
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Full rankings of Tennessee counties
Statewide data for Tennessee
Population, race, income, age, and trends across Tennessee
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.