Union County, Florida Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 59th-largest in Florida
The population of Union County, Florida is 15,551 as of the 2023 American Community Survey, making it the 59th-largest county in Florida. The median household income is $64,922, the median home value is $160,400, and the median age is 40.1.
The population of Union County has grown 1.2% since 2010 (15,551 → 15,738), a +0.09% annualized rate.
15,551
Population
+0.09%
Annual growth
64
People / sq mi
$64,922
Median Income
$160,400
Median Home Value
Union County covers 244 sq mi of land at 63.9 people per square mile.
About Union County, FL
Educational attainment is the headline number in Union County: 10.0% of adults 25 and older have a four-year degree. With 15,551 residents, Union County is a county in Florida.
The typical household here earns about $64,922, below the US median of $78,538. Poverty sits at 13.5%, above the national 12.4%. Median home value is $160,400, with typical rent around $846.
Four-year-degree attainment is near the bottom of the range for US counties, 10.0%, below the national 35.0%. About 6.6% of the workforce is home-based, below the national 14.0%, and the average commute runs about 36 minutes each way.
Union County Population History (2010-2024)
The county of Union County had a population of 15,551 in 2010 and 15,738 in 2024, a 1.2% growth over 14 years. The peak was 15,993 in 2023. Average annual growth rate: 0.10%.
15,738
Population (2024)
15,551
Population (2010)
15,993
Peak (2023)
0.10%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,551 |
| 2011 | 15,308 |
| 2012 | 15,266 |
| 2013 | 15,165 |
| 2014 | 15,260 |
| 2015 | 15,268 |
| 2016 | 15,256 |
| 2017 | 15,455 |
| 2018 | 15,302 |
| 2019 | 15,213 |
| 2020 | 15,433 |
| 2021 | 15,852 |
| 2022 | 15,490 |
| 2023 | 15,993 |
| 2024 | 15,738 |
Race & Ethnicity
| White | 73.2% |
| Black or African American | 16.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.3% |
| Two or More Races | 0.0% |
Age & Sex
40.1
Median Age
35.5%
Female
64.5%
Male
17.2%
Age 65+
Age Distribution
Children (under 15): 17.5% · Seniors (65+): 17.2%
Income & Poverty
| Median household income | $64,922$-6,789 vs state |
| Mean household income | $83,228 |
| Per-capita income | $22,599 |
| Poverty rate | 13.5%+4.6% vs state |
| Unemployment rate | 1.2% |
| Employment-to-population | 34.2% |
Top Industries by Employment
The largest employment sector in Union County is professional & business services, accounting for 24.1% of workers.
How residents commute
0.0%
Drive alone
0.5%
Carpool
84.1%
Public transit
6.6%
Work from home
35.6 min
Avg commute
Housing
$160,400$-164,600 vs state
Median home value
$846
Median rent
73.6%
Homeownership rate
4,772
Total housing units
87.8%
Occupied
12.2%
Vacant
26.4%
Renter-occupied
Social & access
90.4%
With health insurance
96.9%
With broadband internet
29.5%
Foreign-born
10.6%
Veterans (18+)
19.1%
With a disability
95.1%
Speak language other than English at home
Education
78.3%
High School+
10.0%
Bachelor's+
Largest cities in Florida
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County rankings
Frequently Asked Questions
Union County, Florida has a population of 15,551 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 59th-largest county in Florida. Population density is 64 people per square mile.
The population of Union County has grown 1.2% since 2010 (15,551 → 15,738), a +0.09% annualized rate.
The median household income in Union County, Florida is $64,922, with mean (average) household income of $83,228 and per-capita income of $22,599. 13.5% of residents live below the federal poverty level.
In Union County, the largest racial and ethnic groups are White (73.2%), Black or African American (16.2%), Hispanic or Latino (5.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Union County, Florida is 40.1 years. Residents are 35.5% female and 64.5% male.
The median home value in Union County is $160,400 and median monthly rent is $846. 73.6% of occupied housing units are owner-occupied. The county has 4,772 total housing units, 12.2% of which are vacant.
The largest employment sector in Union County, Florida is professional, scientific, and management services, employing 24.1% of workers. The unemployment rate is 1.2%.
Jacksonville is among the largest cities associated with Union County, Florida, with a population of 961,739.
Union County, FL Climate
Union County, FL has an average annual temperature of 20.1°C (68°F) and receives about 1345 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
20.1°C
Avg Temp
1345
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 12° / 53° | 98 mm |
| February | 13° / 56° | 100 mm |
| March | 17° / 62° | 108 mm |
| April | 20° / 67° | 71 mm |
| May | 23° / 74° | 98 mm |
| June | 26° / 79° | 168 mm |
| July | 27° / 81° | 176 mm |
| August | 27° / 80° | 203 mm |
| September | 25° / 78° | 130 mm |
| October | 21° / 70° | 58 mm |
| November | 17° / 62° | 59 mm |
| December | 13° / 56° | 76 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Union County, FL
The most comfortable months to visit Union County, FL are typically October, April and May, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near 5°C low). August is usually the wettest month.
Where to stay near Union County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.