Smith County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 66th-largest in Tennessee
The population of Smith County, Tennessee is 20,196 as of the 2023 American Community Survey, making it the 66th-largest county in Tennessee. The median household income is $62,799, the median home value is $224,500, and the median age is 40.7.
The population of Smith County has grown 8.7% since 2010 (19,127 → 20,783), a +0.59% annualized rate.
20,196
Population
+0.59%
Annual growth
64
People / sq mi
$62,799
Median Income
$224,500
Median Home Value
Smith County covers 314 sq mi of land at 64.3 people per square mile.
About Smith County, TN
Smith County is a county in Tennessee with a population of 20,196. It ranks #66 among counties in Tennessee by population. The median age is 40.7, older than the national median. The population is 50.6% male and 49.4% female.
The median household income in Smith County is $62,799, below the US median of $74,580. 10.4% of residents live below the federal poverty level. Home values sit at a median of $224,500, with monthly rent averaging $877. The homeownership rate of 75.5% is higher than the national rate of 64.8%.
Educational attainment in Smith County reflects 17.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.7% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 32.0 minutes each way.
Smith County Population History (2010-2024)
The county of Smith County had a population of 19,127 in 2010 and 20,783 in 2024, a 8.7% growth over 14 years. The peak was 20,783 in 2024. Average annual growth rate: 0.60%.
20,783
Population (2024)
19,127
Population (2010)
20,783
Peak (2024)
0.60%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 19,127 |
| 2011 | 19,211 |
| 2012 | 19,185 |
| 2013 | 19,123 |
| 2014 | 19,104 |
| 2015 | 19,316 |
| 2016 | 19,542 |
| 2017 | 19,743 |
| 2018 | 19,946 |
| 2019 | 20,115 |
| 2020 | 19,966 |
| 2021 | 20,166 |
| 2022 | 20,485 |
| 2023 | 20,545 |
| 2024 | 20,783 |
Race & Ethnicity
| White | 90.8% |
| Black or African American | 1.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.1% |
Age & Sex
40.7
Median Age
49.4%
Female
50.6%
Male
16.4%
Age 65+
Age Distribution
Children (under 15): 18.3% · Seniors (65+): 16.4%
Income & Poverty
| Median household income | $62,799$-4,298 vs state |
| Mean household income | $85,700 |
| Per-capita income | $32,720 |
| Poverty rate | 10.4%+0.5% vs state |
| Unemployment rate | 1.9% |
| Employment-to-population | 58.0% |
Top Industries by Employment
The largest employment sector in Smith County is professional & business services, accounting for 20.9% of workers.
How residents commute
0.0%
Drive alone
0.2%
Carpool
81.7%
Public transit
7.7%
Work from home
32.0 min
Avg commute
Housing
$224,500$-32,300 vs state
Median home value
$877
Median rent
75.5%
Homeownership rate
8,649
Total housing units
88.1%
Occupied
11.9%
Vacant
24.5%
Renter-occupied
Social & access
91.5%
With health insurance
92.3%
With broadband internet
25.1%
Foreign-born
6.4%
Veterans (18+)
17.2%
With a disability
96.5%
Speak language other than English at home
Education
87.3%
High School+
17.9%
Bachelor's+
Largest cities in Tennessee
Other counties in Tennessee
Part of Tennessee
Metro areas in Tennessee
County rankings
Frequently Asked Questions
Smith County, Tennessee has a population of 20,196 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 66th-largest county in Tennessee. Population density is 64 people per square mile.
The population of Smith County has grown 8.7% since 2010 (19,127 → 20,783), a +0.59% annualized rate.
The median household income in Smith County, Tennessee is $62,799, with mean (average) household income of $85,700 and per-capita income of $32,720. 10.4% of residents live below the federal poverty level.
In Smith County, the largest racial and ethnic groups are White (90.8%), Black or African American (1.9%), Hispanic or Latino (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Smith County, Tennessee is 40.7 years. Residents are 49.4% female and 50.6% male.
The median home value in Smith County is $224,500 and median monthly rent is $877. 75.5% of occupied housing units are owner-occupied. The county has 8,649 total housing units, 11.9% of which are vacant.
The largest employment sector in Smith County, Tennessee is professional, scientific, and management services, employing 20.9% of workers. The unemployment rate is 1.9%.
Nashville-Davidson is among the largest cities associated with Smith County, Tennessee, with a population of 684,298.
More from Tennessee
Population 922,195
Population 709,846
Population 487,401
Population 370,913
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.