Johnson County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 70th-largest in Tennessee
The population of Johnson County, Tennessee is 18,073 as of the 2023 American Community Survey, making it the 70th-largest county in Tennessee. The median household income is $52,152, the median home value is $175,500, and the median age is 46.4.
The population of Johnson County has grown 1.2% since 2010 (18,287 → 18,506), a +0.09% annualized rate.
18,073
Population
+0.09%
Annual growth
61
People / sq mi
$52,152
Median Income
$175,500
Median Home Value
Johnson County covers 298 sq mi of land at 60.6 people per square mile.
About Johnson County, TN
Johnson County is distinguished by its share of foreign-born residents, 52.1% of the population. With 18,073 residents, Johnson County is a county in Tennessee.
The typical household earns $52,152, below the US median of $78,538. Poverty sits at 14.2%, above the national 12.4%. Homes carry a median value of $175,500, with typical rent around $639.
Degree attainment is on the lower side for US counties: 15.7% of adults hold a bachelor’s degree, below the national 35.0%. Remote work is below the national 14.0% at 8.1%, and the average commute runs about 26 minutes each way.
The large foreign-born share is a defining thread in Johnson County, shaping language, household composition, and the labor force behind the economic figures above.
Johnson County Population History (2010-2024)
The county of Johnson County had a population of 18,287 in 2010 and 18,506 in 2024, a 1.2% growth over 14 years. The peak was 18,506 in 2024. Average annual growth rate: 0.09%.
18,506
Population (2024)
18,287
Population (2010)
18,506
Peak (2024)
0.09%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,287 |
| 2011 | 18,227 |
| 2012 | 18,164 |
| 2013 | 18,020 |
| 2014 | 17,942 |
| 2015 | 17,851 |
| 2016 | 17,782 |
| 2017 | 17,611 |
| 2018 | 17,759 |
| 2019 | 17,773 |
| 2020 | 17,994 |
| 2021 | 18,061 |
| 2022 | 18,044 |
| 2023 | 18,376 |
| 2024 | 18,506 |
Race & Ethnicity
| White | 89.1% |
| Black or African American | 3.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 4.1% |
| Two or More Races | 0.0% |
Age & Sex
46.4
Median Age
46.3%
Female
53.7%
Male
23.3%
Age 65+
Age Distribution
Children (under 15): 13.7% · Seniors (65+): 23.3%
Income & Poverty
| Median household income | $52,152$-14,945 vs state |
| Mean household income | $69,081 |
| Per-capita income | $28,786 |
| Poverty rate | 14.2%+4.3% vs state |
| Unemployment rate | 1.6% |
| Employment-to-population | 42.7% |
Top Industries by Employment
The largest employment sector in Johnson County is professional & business services, accounting for 19.7% of workers.
How residents commute
0.0%
Drive alone
0.0%
Carpool
78.6%
Public transit
8.1%
Work from home
25.7 min
Avg commute
Housing
$175,500$-81,300 vs state
Median home value
$639
Median rent
78.6%
Homeownership rate
8,755
Total housing units
81.9%
Occupied
18.1%
Vacant
21.4%
Renter-occupied
Social & access
87.5%
With health insurance
87.6%
With broadband internet
52.1%
Foreign-born
9.0%
Veterans (18+)
19.7%
With a disability
95.7%
Speak language other than English at home
Education
81.3%
High School+
15.7%
Bachelor's+
Largest cities in Tennessee
Other counties in Tennessee
Part of Tennessee
Metro areas in Tennessee
County rankings
Frequently Asked Questions
Johnson County, Tennessee has a population of 18,073 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 70th-largest county in Tennessee. Population density is 61 people per square mile.
The population of Johnson County has grown 1.2% since 2010 (18,287 → 18,506), a +0.09% annualized rate.
The median household income in Johnson County, Tennessee is $52,152, with mean (average) household income of $69,081 and per-capita income of $28,786. 14.2% of residents live below the federal poverty level.
In Johnson County, the largest racial and ethnic groups are White (89.1%), Hispanic or Latino (4.1%), Black or African American (3.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Johnson County, Tennessee is 46.4 years. Residents are 46.3% female and 53.7% male.
The median home value in Johnson County is $175,500 and median monthly rent is $639. 78.6% of occupied housing units are owner-occupied. The county has 8,755 total housing units, 18.1% of which are vacant.
The largest employment sector in Johnson County, Tennessee is professional, scientific, and management services, employing 19.7% of workers. The unemployment rate is 1.6%.
Nashville-Davidson is among the largest cities associated with Johnson County, Tennessee, with a population of 684,298.
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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.