Demographics of Union County, Mississippi

Union County, Mississippi had 28,459 people on July 1, 2025, by the Census Bureau’s estimate: +647 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Union County, in four figures

28,459
Population: July 1, 2025, Vintage 2025 estimate.; +2.3%
Change since July 2020: +647 people.; 38.3 ±0.9
Median age: ACS 2020–⁠2024.; $55,505 ±$4,529
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Union County, Mississippi's population grew 2.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Union County, Mississippi's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Union County, Mississippi's population grew 2.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Union County, Mississippi's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	27,812	100.0	100.0
2021	28,028	100.8	100.2
2022	28,123	101.1	100.7
2023	28,265	101.6	101.6
2024	28,379	102.0	102.5
2025	28,459	102.3	103.1

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Population of Union County, Mississippi on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	27,812	+30	0	0	+20
2021	28,028	+216	−7	+8	+197
2022	28,123	+95	−32	+19	+118
2023	28,265	+142	+5	+11	+128
2024	28,379	+114	−11	+66	+62
2025	28,459	+80	−26	+21	+84

Age, 2020–2024

The median age is 38.3 ±0.9: for men 37.2 ±2.1 and for women 39.1 ±0.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Union County by age, ACS 2020–2024
Age	People	Share	Mississippi	United States
Under 5	1,699 ±69	6.0% ±0.2	6.0% ±<0.1	5.6% ±<0.1
5 to 17	5,340 ±404	19.0% ±1.4	17.4% ±0.1	16.3% ±<0.1
18 to 24	2,555 ±348	9.1% ±1.2	9.8% ±0.1	9.1% ±<0.1
25 to 44	7,012 ±540	24.9% ±1.9	25.1% ±0.2	26.9% ±<0.1
45 to 64	6,854 ±422	24.4% ±1.5	24.6% ±0.2	24.8% ±<0.1
65 and over	4,662 ±409	16.6% ±1.5	17.2% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $55,505 ±$4,529, and income per person $28,013 ±$1,955, in 2024 dollars. The median is $56,447 ±$539 in Mississippi and $80,734 ±$166 in the United States.

Households by income

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Households in Union County by income, ACS 2020–2024
Household income	Households	Share	Mississippi	United States
Under $25,000	2,005 ±381	20.4% ±3.8	23.1% ±0.4	14.6% ±<0.1
$25,000 to $49,999	2,180 ±378	22.1% ±3.7	22.0% ±0.4	16.7% ±<0.1
$50,000 to $74,999	2,162 ±357	22.0% ±3.5	16.5% ±0.3	15.5% ±<0.1
$75,000 to $99,999	1,173 ±272	11.9% ±2.7	12.0% ±0.3	12.6% ±<0.1
$100,000 to $149,999	1,421 ±290	14.4% ±2.9	14.4% ±0.3	17.5% ±<0.1
$150,000 to $199,999	353 ±112	3.6% ±1.1	6.2% ±0.2	9.6% ±<0.1
$200,000 or more	555 ±226	5.6% ±2.3	5.8% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Union County by age, ACS 2020–2024
Age	Below poverty	Rate	Mississippi	United States
All ages	4,223 ±854	15.1% ±3.1	18.9% ±0.3	12.5% ±0.1
Under 18	1,617 ±383	23.0% ±5.0	26.0% ±0.6	16.1% ±0.1
18 to 59	2,024 ±498	13.9% ±3.4	17.4% ±0.3	11.6% ±0.1
60 and over	582 ±185	9.2% ±2.9	15.2% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Union County, ACS 2020–2024
Measure	Union County	Mississippi	United States
Housing units	12,250 ±24	1,341,114 ±478	143,775,355 ±10,234
Occupied	80.4% ±3.0	85.4% ±0.3	89.9% ±0.1
Vacant	19.6% ±3.0	14.6% ±0.3	10.1% ±0.1
Owner occupied	74.7% ±2.8	70.0% ±0.4	65.2% ±0.3
Renter occupied	25.3% ±3.4	30.0% ±0.4	34.8% ±0.1
Median home value	$163,400 ±$11,218	$169,800 ±$1,198	$332,700 ±$236
Median gross rent	$865 ±$43	$954 ±$8	$1,413 ±$2
Median year built	1985 ±3	1986 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Union County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Mississippi	United States
Hispanic or Latino	1,365 ±0	4.9% ±<0.1	3.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	21,521 ±65	76.5% ±0.2	55.2% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	3,831 ±471	13.6% ±1.7	36.3% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 166	0% to 0.6%	1.0% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	29 to 143	0.1% to 0.5%	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 26	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 335	0% to 1.2%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,072 ±483	3.8% ±1.7	3.0% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Union County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Mississippi	United States
Born in the state	22,069 ±726	78.5% ±2.6	70.8% ±0.3	57.3% ±<0.1
Born in another state	5,447 ±751	19.4% ±2.7	26.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	24 to 218	0.1% to 0.8%	0.7% ±<0.1	1.7% ±<0.1
Born abroad	485 ±164	1.7% ±0.6	2.4% ±0.1	14.1% ±<0.1
Naturalized citizens	194 ±95	0.7% ±0.3	1.0% ±0.1	7.4% ±<0.1
Not citizens	141 to 441	0.5% to 1.6%	1.4% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Union County among the counties of Mississippi

29th of 82 by population, July 2025. Every one is listed on the Mississippi page.

Counties of Mississippi near Union County in population, July 2025
County	July 2025	Change since 2020
Panola County	32,691	−1.5%
Pontotoc County	32,096	+2.9%
Adams County	30,061	+2.2%
Neshoba County	28,732	−0.9%
Tate County	28,725	+2.1%
Union County	28,459	+2.3%
Bolivar County	28,262	−8.4%
Scott County	28,073	+0.4%
Copiah County	27,497	−2.7%
George County	26,331	+8.1%
Leflore County	25,686	−9.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026