Marion County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 51st-largest in Tennessee
The population of Marion County, Tennessee is 29,010 as of the 2023 American Community Survey, making it the 51st-largest county in Tennessee. The median household income is $58,103, the median home value is $173,600, and the median age is 43.7.
The population of Marion County has grown 5.7% since 2010 (28,227 → 29,826), a +0.39% annualized rate.
29,010
Population
+0.39%
Annual growth
58
People / sq mi
$58,103
Median Income
$173,600
Median Home Value
Marion County covers 502 sq mi of land at 57.8 people per square mile.
About Marion County, TN
Homeownership is the standout figure in Marion County: 79.8% of homes are owner-occupied, higher than the national rate. Marion County is a county in Tennessee with a population of 29,010.
The typical household here earns about $58,103, below the US median of $78,538. Roughly 12.9% of residents fall below the poverty line, close to the national 12.4%. Median home value is $173,600, with typical rent around $840.
College attainment is 16.5%, below the national 35.0%. Remote work is below the national 14.0% at 9.4%, and the average commute runs about 33 minutes each way.
The ownership rate anchors the housing story in Marion County, and tends to move with the age structure and home-value figures above.
Marion County Population History (2010-2024)
The county of Marion County had a population of 28,227 in 2010 and 29,826 in 2024, a 5.7% growth over 14 years. The peak was 29,826 in 2024. Average annual growth rate: 0.40%.
29,826
Population (2024)
28,227
Population (2010)
29,826
Peak (2024)
0.40%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 28,227 |
| 2011 | 28,107 |
| 2012 | 28,237 |
| 2013 | 28,337 |
| 2014 | 28,416 |
| 2015 | 28,407 |
| 2016 | 28,375 |
| 2017 | 28,425 |
| 2018 | 28,593 |
| 2019 | 28,878 |
| 2020 | 28,905 |
| 2021 | 28,960 |
| 2022 | 29,101 |
| 2023 | 29,458 |
| 2024 | 29,826 |
Race & Ethnicity
| White | 91.3% |
| Black or African American | 2.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.0% |
| Two or More Races | 0.0% |
Age & Sex
43.7
Median Age
50.3%
Female
49.7%
Male
20.5%
Age 65+
Age Distribution
Children (under 15): 16.6% · Seniors (65+): 20.5%
Income & Poverty
| Median household income | $58,103$-8,994 vs state |
| Mean household income | $73,573 |
| Per-capita income | $29,313 |
| Poverty rate | 12.9%+3.0% vs state |
| Unemployment rate | 4.1% |
| Employment-to-population | 49.1% |
Top Industries by Employment
The largest employment sector in Marion County is manufacturing, accounting for 19.1% of workers.
How residents commute
0.4%
Drive alone
1.4%
Carpool
76.4%
Public transit
9.4%
Work from home
33.1 min
Avg commute
Housing
$173,600$-83,200 vs state
Median home value
$840
Median rent
79.8%
Homeownership rate
13,837
Total housing units
83.3%
Occupied
16.7%
Vacant
20.2%
Renter-occupied
Social & access
90.2%
With health insurance
90.3%
With broadband internet
30.0%
Foreign-born
8.5%
Veterans (18+)
19.8%
With a disability
98.5%
Speak language other than English at home
Education
82.3%
High School+
16.5%
Bachelor's+
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County rankings
Frequently Asked Questions
Marion County, Tennessee has a population of 29,010 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 51st-largest county in Tennessee. Population density is 58 people per square mile.
The population of Marion County has grown 5.7% since 2010 (28,227 → 29,826), a +0.39% annualized rate.
The median household income in Marion County, Tennessee is $58,103, with mean (average) household income of $73,573 and per-capita income of $29,313. 12.9% of residents live below the federal poverty level.
In Marion County, the largest racial and ethnic groups are White (91.3%), Black or African American (2.8%), Hispanic or Latino (2.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marion County, Tennessee is 43.7 years. Residents are 50.3% female and 49.7% male.
The median home value in Marion County is $173,600 and median monthly rent is $840. 79.8% of occupied housing units are owner-occupied. The county has 13,837 total housing units, 16.7% of which are vacant.
The largest employment sector in Marion County, Tennessee is manufacturing, employing 19.1% of workers. The unemployment rate is 4.1%.
Nashville-Davidson is among the largest cities associated with Marion 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.