Union County, Mississippi Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 30th-largest in Mississippi
The population of Union County, Mississippi is 28,009 as of the 2023 American Community Survey, making it the 30th-largest county in Mississippi. The median household income is $56,807, the median home value is $159,100, and the median age is 38.4.
The population of Union County has grown 4.5% since 2010 (27,141 → 28,363), a +0.32% annualized rate.
28,009
Population
+0.32%
Annual growth
67
People / sq mi
$56,807
Median Income
$159,100
Median Home Value
Union County covers 416 sq mi of land at 67.4 people per square mile.
About Union County, MS
Remote work is unusually rare in Union County: 1.5% of workers primarily work from home, below the 14.0% national rate. With 28,009 residents, Union County is a county in Mississippi. It ranks #30 among counties in Mississippi by population.
Median household income is $56,807, below the US median of $78,538. Poverty runs at 10.6%, below the national 12.4%. Homes carry a median value of $159,100, with typical rent around $910.
College attainment is 17.1%, below the national 35.0%. Remote work is rare here (1.5%, below the national 14.0%), and the average commute runs about 24 minutes each way.
Union County Population History (2010-2024)
The county of Union County had a population of 27,141 in 2010 and 28,363 in 2024, a 4.5% growth over 14 years. The peak was 28,711 in 2019. Average annual growth rate: 0.32%.
28,363
Population (2024)
27,141
Population (2010)
28,711
Peak (2019)
0.32%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 27,141 |
| 2011 | 27,305 |
| 2012 | 27,339 |
| 2013 | 27,763 |
| 2014 | 28,152 |
| 2015 | 28,309 |
| 2016 | 28,298 |
| 2017 | 28,478 |
| 2018 | 28,536 |
| 2019 | 28,711 |
| 2020 | 27,814 |
| 2021 | 28,029 |
| 2022 | 28,130 |
| 2023 | 28,275 |
| 2024 | 28,363 |
Race & Ethnicity
| White | 76.9% |
| Black or African American | 16.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
38.4
Median Age
51.1%
Female
48.9%
Male
16.5%
Age 65+
Age Distribution
Children (under 15): 20.7% · Seniors (65+): 16.5%
Income & Poverty
| Median household income | $56,807+$1,892 vs state |
| Mean household income | $76,400 |
| Per-capita income | $28,173 |
| Poverty rate | 10.6%-3.7% vs state |
| Unemployment rate | 2.2% |
| Employment-to-population | 54.8% |
Top Industries by Employment
The largest employment sector in Union County is manufacturing, accounting for 27.6% of workers.
How residents commute
0.0%
Drive alone
0.0%
Carpool
91.9%
Public transit
1.5%
Work from home
24.1 min
Avg commute
Housing
$159,100$-2,300 vs state
Median home value
$910
Median rent
74.8%
Homeownership rate
12,195
Total housing units
82.0%
Occupied
18.0%
Vacant
25.2%
Renter-occupied
Social & access
88.6%
With health insurance
90.9%
With broadband internet
17.1%
Foreign-born
6.1%
Veterans (18+)
19.5%
With a disability
96.6%
Speak language other than English at home
Education
78.6%
High School+
17.1%
Bachelor's+
Largest cities in Mississippi
Other counties in Mississippi
Part of Mississippi
Metro areas in Mississippi
County rankings
Frequently Asked Questions
Union County, Mississippi has a population of 28,009 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 30th-largest county in Mississippi. Population density is 67 people per square mile.
The population of Union County has grown 4.5% since 2010 (27,141 → 28,363), a +0.32% annualized rate.
The median household income in Union County, Mississippi is $56,807, with mean (average) household income of $76,400 and per-capita income of $28,173. 10.6% of residents live below the federal poverty level.
In Union County, the largest racial and ethnic groups are White (76.9%), Black or African American (16.1%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Union County, Mississippi is 38.4 years. Residents are 51.1% female and 48.9% male.
The median home value in Union County is $159,100 and median monthly rent is $910. 74.8% of occupied housing units are owner-occupied. The county has 12,195 total housing units, 18.0% of which are vacant.
The largest employment sector in Union County, Mississippi is manufacturing, employing 27.6% of workers. The unemployment rate is 2.2%.
Jackson is among the largest cities associated with Union County, Mississippi, with a population of 149,827.
Union County, MS Climate
Union County, MS has an average annual temperature of 16°C (61°F) and receives about 1452 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
16°C
Avg Temp
1452
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 4° / 40° | 125 mm |
| February | 7° / 44° | 121 mm |
| March | 12° / 53° | 156 mm |
| April | 16° / 61° | 139 mm |
| May | 21° / 69° | 143 mm |
| June | 25° / 76° | 102 mm |
| July | 27° / 80° | 114 mm |
| August | 26° / 79° | 82 mm |
| September | 23° / 73° | 95 mm |
| October | 16° / 61° | 85 mm |
| November | 11° / 51° | 140 mm |
| December | 6° / 43° | 150 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, MS
The most comfortable months to visit Union County, MS are typically September, May and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near -1°C low). March 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.