Marion County, Mississippi Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 39th-largest in Mississippi
The population of Marion County, Mississippi is 24,303 as of the 2023 American Community Survey, making it the 39th-largest county in Mississippi. The median household income is $42,320, the median home value is $117,000, and the median age is 40.7.
The population of Marion County has declined 11.0% since 2010 (26,987 → 24,008), a -0.83% annualized rate.
24,303
Population
-0.83%
Annual growth
45
People / sq mi
$42,320
Median Income
$117,000
Median Home Value
Marion County covers 542 sq mi of land at 44.8 people per square mile.
About Marion County, MS
Educational attainment is the headline number in Marion County: 12.5% of adults 25 and older have a four-year degree. With 24,303 residents, Marion County is a county in Mississippi. It ranks #39 among counties in Mississippi by population.
Incomes are among the lowest of comparable places, with a median household income of $42,320, below the US median of $78,538. Roughly 15.6% of residents fall below the poverty line, above the national 12.4%. Homes are comparatively cheap — a median value of $117,000, with typical rent around $700.
Four-year-degree attainment is near the bottom of the range for US counties, 12.5%, below the national 35.0%. Remote work is below the national 14.0% at 6.0%, and the average commute runs about 35 minutes each way.
Marion County Population History (2010-2024)
The county of Marion County had a population of 26,987 in 2010 and 24,008 in 2024, a -11.0% growth over 14 years. The peak was 26,987 in 2010. Average annual growth rate: -0.83%.
24,008
Population (2024)
26,987
Population (2010)
26,987
Peak (2010)
-0.83%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 26,987 |
| 2011 | 26,669 |
| 2012 | 26,333 |
| 2013 | 26,064 |
| 2014 | 25,685 |
| 2015 | 25,430 |
| 2016 | 25,120 |
| 2017 | 25,123 |
| 2018 | 24,736 |
| 2019 | 24,504 |
| 2020 | 24,376 |
| 2021 | 24,308 |
| 2022 | 24,142 |
| 2023 | 24,133 |
| 2024 | 24,008 |
Race & Ethnicity
| White | 63.9% |
| Black or African American | 32.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
40.7
Median Age
52.1%
Female
47.9%
Male
18.7%
Age 65+
Age Distribution
Children (under 15): 19.1% · Seniors (65+): 18.7%
Income & Poverty
| Median household income | $42,320$-12,595 vs state |
| Mean household income | $67,117 |
| Per-capita income | $26,281 |
| Poverty rate | 15.6%+1.3% vs state |
| Unemployment rate | 4.9% |
| Employment-to-population | 49.1% |
Top Industries by Employment
The largest employment sector in Marion County is professional & business services, accounting for 23.9% of workers.
How residents commute
0.0%
Drive alone
0.9%
Carpool
83.5%
Public transit
6.0%
Work from home
35.0 min
Avg commute
Housing
$117,000$-44,400 vs state
Median home value
$700
Median rent
78.2%
Homeownership rate
11,165
Total housing units
82.4%
Occupied
17.6%
Vacant
21.8%
Renter-occupied
Social & access
85.9%
With health insurance
91.3%
With broadband internet
19.9%
Foreign-born
6.4%
Veterans (18+)
21.5%
With a disability
97.7%
Speak language other than English at home
Education
82.5%
High School+
12.5%
Bachelor's+
Largest cities in Mississippi
Other counties in Mississippi
Part of Mississippi
Metro areas in Mississippi
County rankings
Frequently Asked Questions
Marion County, Mississippi has a population of 24,303 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 39th-largest county in Mississippi. Population density is 45 people per square mile.
The population of Marion County has declined 11.0% since 2010 (26,987 → 24,008), a -0.83% annualized rate.
The median household income in Marion County, Mississippi is $42,320, with mean (average) household income of $67,117 and per-capita income of $26,281. 15.6% of residents live below the federal poverty level.
In Marion County, the largest racial and ethnic groups are White (63.9%), Black or African American (32.1%), Hispanic or Latino (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marion County, Mississippi is 40.7 years. Residents are 52.1% female and 47.9% male.
The median home value in Marion County is $117,000 and median monthly rent is $700. 78.2% of occupied housing units are owner-occupied. The county has 11,165 total housing units, 17.6% of which are vacant.
The largest employment sector in Marion County, Mississippi is professional, scientific, and management services, employing 23.9% of workers. The unemployment rate is 4.9%.
Jackson is among the largest cities associated with Marion County, Mississippi, with a population of 149,827.
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Statewide data for Mississippi
Population, race, income, age, and trends across Mississippi
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.