Marion County, Florida Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in Florida
The population of Marion County, Florida is 387,697 as of the 2023 American Community Survey, making it the 18th-largest county in Florida. The median household income is $58,535, the median home value is $220,800, and the median age is 48.2.
The population of Marion County has grown 29.4% since 2010 (331,341 → 428,905), a +1.86% annualized rate.
387,697
Population
+1.86%
Annual growth
244
People / sq mi
$58,535
Median Income
$220,800
Median Home Value
Marion County covers 1,588 sq mi of land at 244.1 people per square mile.
About Marion County, FL
Marion County is a county in Florida with a population of 387,697. It ranks #18 among counties in Florida by population. The median age is 48.2, older than the national median. The population is 48.3% male and 51.7% female.
The median household income in Marion County is $58,535, below the US median of $74,580. 10.2% of residents live below the federal poverty level. Home values sit at a median of $220,800, with monthly rent averaging $1,174. The homeownership rate of 76.7% is higher than the national rate of 64.8%.
Educational attainment in Marion County reflects 22.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 10.1% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.3 minutes each way.
Marion County Population History (2010-2024)
The county of Marion County had a population of 331,341 in 2010 and 428,905 in 2024, a 29.4% growth over 14 years. The peak was 428,905 in 2024. Average annual growth rate: 1.87%.
428,905
Population (2024)
331,341
Population (2010)
428,905
Peak (2024)
1.87%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 331,341 |
| 2011 | 332,325 |
| 2012 | 333,945 |
| 2013 | 335,196 |
| 2014 | 338,165 |
| 2015 | 342,388 |
| 2016 | 347,958 |
| 2017 | 353,953 |
| 2018 | 359,630 |
| 2019 | 365,997 |
| 2020 | 377,464 |
| 2021 | 385,024 |
| 2022 | 396,661 |
| 2023 | 412,338 |
| 2024 | 428,905 |
Race & Ethnicity
| White | 71.7% |
| Black or African American | 12.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
48.2
Median Age
51.7%
Female
48.3%
Male
28.7%
Age 65+
Age Distribution
Children (under 15): 15.5% · Seniors (65+): 28.7%
Income & Poverty
| Median household income | $58,535$-13,176 vs state |
| Mean household income | $77,453 |
| Per-capita income | $32,513 |
| Poverty rate | 10.2%+1.3% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 45.8% |
Top Industries by Employment
The largest employment sector in Marion County is professional & business services, accounting for 21.8% of workers.
How residents commute
0.1%
Drive alone
0.6%
Carpool
77.1%
Public transit
10.1%
Work from home
26.3 min
Avg commute
Housing
$220,800$-104,200 vs state
Median home value
$1,174
Median rent
76.7%
Homeownership rate
183,453
Total housing units
87.1%
Occupied
12.9%
Vacant
23.3%
Renter-occupied
Social & access
87.8%
With health insurance
94.3%
With broadband internet
48.0%
Foreign-born
11.1%
Veterans (18+)
16.5%
With a disability
84.8%
Speak language other than English at home
Education
89.6%
High School+
22.4%
Bachelor's+
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Common questions about Marion County, FL
Frequently Asked Questions
Marion County, Florida has a population of 387,697 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in Florida. Population density is 244 people per square mile.
The population of Marion County has grown 29.4% since 2010 (331,341 → 428,905), a +1.86% annualized rate.
The median household income in Marion County, Florida is $58,535, with mean (average) household income of $77,453 and per-capita income of $32,513. 10.2% of residents live below the federal poverty level.
In Marion County, the largest racial and ethnic groups are White (71.7%), Black or African American (12.6%), Hispanic or Latino (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marion County, Florida is 48.2 years. Residents are 51.7% female and 48.3% male.
The median home value in Marion County is $220,800 and median monthly rent is $1,174. 76.7% of occupied housing units are owner-occupied. The county has 183,453 total housing units, 12.9% of which are vacant.
The largest employment sector in Marion County, Florida is professional, scientific, and management services, employing 21.8% of workers. The unemployment rate is 2.5%.
Jacksonville is among the largest cities associated with Marion County, Florida, with a population of 961,739.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.