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
Union County is a county in Mississippi with a population of 28,009. It ranks #30 among counties in Mississippi by population. The median age is 38.4, in line with the national median. The population is 48.9% male and 51.1% female.
The median household income in Union County is $56,807, below the US median of $74,580. 10.6% of residents live below the federal poverty level. Home values sit at a median of $159,100, with monthly rent averaging $910. The homeownership rate of 74.8% is higher than the national rate of 64.8%.
Educational attainment in Union County reflects 17.1% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 1.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 24.1 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.
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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.