Jefferson County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 28th-largest in Tennessee
The population of Jefferson County, Tennessee is 55,835 as of the 2023 American Community Survey, making it the 28th-largest county in Tennessee. The median household income is $63,084, the median home value is $210,000, and the median age is 44.1.
The population of Jefferson County has grown 14.5% since 2010 (51,719 → 59,217), a +0.97% annualized rate.
55,835
Population
+0.97%
Annual growth
203
People / sq mi
$63,084
Median Income
$210,000
Median Home Value
Jefferson County covers 275 sq mi of land at 202.9 people per square mile.
About Jefferson County, TN
Jefferson County stands apart on settlement density — it is among the most densely settled of US counties, at roughly 203 people per square mile. With 55,835 residents, Jefferson County is a county in Tennessee. It ranks #28 among counties in Tennessee by population.
Household earnings are middling, with a median of $63,084 — below the US median of $78,538. About 8.4% of residents live below the federal poverty level, below the national 12.4%. Median home value is $210,000, with typical rent around $880.
Degree attainment is mid-range for US counties: 21.0% of adults hold a four-year degree, below the national 35.0%. Most workers commute: only 5.5% work from home, below the national 14.0%, and the average commute runs about 28 minutes each way.
That density explains much of the rest of the profile in Jefferson County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Jefferson County Population History (2010-2024)
The county of Jefferson County had a population of 51,719 in 2010 and 59,217 in 2024, a 14.5% growth over 14 years. The peak was 59,217 in 2024. Average annual growth rate: 0.97%.
59,217
Population (2024)
51,719
Population (2010)
59,217
Peak (2024)
0.97%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 51,719 |
| 2011 | 51,918 |
| 2012 | 52,316 |
| 2013 | 52,157 |
| 2014 | 52,439 |
| 2015 | 53,049 |
| 2016 | 53,193 |
| 2017 | 53,760 |
| 2018 | 53,989 |
| 2019 | 54,563 |
| 2020 | 54,917 |
| 2021 | 55,550 |
| 2022 | 56,739 |
| 2023 | 57,897 |
| 2024 | 59,217 |
Race & Ethnicity
| White | 91.7% |
| Black or African American | 1.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
44.1
Median Age
50.6%
Female
49.4%
Male
20.2%
Age 65+
Age Distribution
Children (under 15): 15.5% · Seniors (65+): 20.2%
Income & Poverty
| Median household income | $63,084$-4,013 vs state |
| Mean household income | $87,614 |
| Per-capita income | $34,953 |
| Poverty rate | 8.4%-1.5% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 55.9% |
Top Industries by Employment
The largest employment sector in Jefferson County is professional & business services, accounting for 20.3% of workers.
How residents commute
0.3%
Drive alone
1.5%
Carpool
84.8%
Public transit
5.5%
Work from home
28.3 min
Avg commute
Housing
$210,000$-46,800 vs state
Median home value
$880
Median rent
74.0%
Homeownership rate
25,223
Total housing units
84.6%
Occupied
15.4%
Vacant
26.0%
Renter-occupied
Social & access
90.4%
With health insurance
92.9%
With broadband internet
37.5%
Foreign-born
9.5%
Veterans (18+)
19.5%
With a disability
95.8%
Speak language other than English at home
Education
88.9%
High School+
21.0%
Bachelor's+
Largest cities in Tennessee
Other counties in Tennessee
Part of Tennessee
Metro areas in Tennessee
County rankings
Frequently Asked Questions
Jefferson County, Tennessee has a population of 55,835 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 28th-largest county in Tennessee. Population density is 203 people per square mile.
The population of Jefferson County has grown 14.5% since 2010 (51,719 → 59,217), a +0.97% annualized rate.
The median household income in Jefferson County, Tennessee is $63,084, with mean (average) household income of $87,614 and per-capita income of $34,953. 8.4% of residents live below the federal poverty level.
In Jefferson County, the largest racial and ethnic groups are White (91.7%), Black or African American (1.5%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jefferson County, Tennessee is 44.1 years. Residents are 50.6% female and 49.4% male.
The median home value in Jefferson County is $210,000 and median monthly rent is $880. 74.0% of occupied housing units are owner-occupied. The county has 25,223 total housing units, 15.4% of which are vacant.
The largest employment sector in Jefferson County, Tennessee is professional, scientific, and management services, employing 20.3% of workers. The unemployment rate is 3.2%.
Nashville-Davidson is among the largest cities associated with Jefferson 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.