Demographics of Union city, South Carolina

Union city, South Carolina had 8,077 people on July 1, 2025, by the Census Bureau’s estimate: −134 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Union city, in four figures

8,077
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 8,079 ±34.; −1.6%
Change since July 2020: −134 people.; 45.5 ±2.2
Median age: ACS 2020–⁠2024.; $31,914 ±$3,428
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Union city, South Carolina's population shrank 1.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Union city, South Carolina'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).

Source: The Census Bureau

About this chart

The figures

Union city, South Carolina's population shrank 1.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Union city, South Carolina'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	8,211	100.0	100.0
2021	8,151	99.3	100.2
2022	8,064	98.2	100.7
2023	8,045	98.0	101.6
2024	8,037	97.9	102.5
2025	8,077	98.4	103.1

Population of Union city, South Carolina on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	8,211	—
2021	8,151	−60
2022	8,064	−87
2023	8,045	−19
2024	8,037	−8
2025	8,077	+40

Age, 2020–2024

The median age is 45.5 ±2.2: for men 42.8 ±5.3 and for women 47.1 ±2.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Union city by age, ACS 2020–2024
Age	People	Share	South Carolina	United States
Under 5	442 ±140	5.5% ±1.7	5.5% ±<0.1	5.6% ±<0.1
5 to 17	1,147 ±213	14.2% ±2.6	16.0% ±0.1	16.3% ±<0.1
18 to 24	629 ±167	7.8% ±2.1	9.1% ±0.1	9.1% ±<0.1
25 to 44	1,708 ±275	21.1% ±3.4	25.3% ±0.1	26.9% ±<0.1
45 to 64	2,486 ±346	30.8% ±4.3	25.2% ±0.1	24.8% ±<0.1
65 and over	1,667 ±263	20.6% ±3.3	18.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $31,914 ±$3,428, and income per person $25,582 ±$2,864, in 2024 dollars. The median is $69,324 ±$570 in South Carolina and $80,734 ±$166 in the United States.

Households by income

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Households in Union city by income, ACS 2020–2024
Household income	Households	Share	South Carolina	United States
Under $25,000	1,565 ±272	40.1% ±6.5	17.0% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,007 ±256	25.8% ±6.4	19.6% ±0.3	16.7% ±<0.1
$50,000 to $74,999	443 ±134	11.3% ±3.4	17.0% ±0.3	15.5% ±<0.1
$75,000 to $99,999	449 ±135	11.5% ±3.4	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	205 ±81	5.3% ±2.1	16.4% ±0.2	17.5% ±<0.1
$150,000 to $199,999	46 to 262	1.2% to 6.7%	8.0% ±0.2	9.6% ±<0.1
$200,000 or more	33 to 129	0.9% to 3.3%	8.9% ±0.2	13.4% ±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%.

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 city by age, ACS 2020–2024
Age	Below poverty	Rate	South Carolina	United States
All ages	2,300 ±431	28.9% ±5.4	14.1% ±0.2	12.5% ±0.1
Under 18	630 ±173	39.8% ±8.5	19.4% ±0.4	16.1% ±0.1
18 to 59	1,149 ±280	27.5% ±6.0	13.1% ±0.2	11.6% ±0.1
60 and over	521 ±131	23.6% ±5.0	11.6% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Union city, ACS 2020–2024
Measure	Union city	South Carolina	United States
Housing units	4,388 ±246	2,443,039 ±311	143,775,355 ±10,234
Occupied	89.0% ±2.0	86.7% ±0.2	89.9% ±0.1
Vacant	11.0% ±2.8	13.3% ±0.2	10.1% ±0.1
Owner occupied	49.8% ±7.2	71.9% ±0.3	65.2% ±0.3
Renter occupied	50.2% ±6.5	28.1% ±0.3	34.8% ±0.1
Median home value	$109,400 ±$10,172	$259,000 ±$1,421	$332,700 ±$236
Median gross rent	$832 ±$118	$1,180 ±$9	$1,413 ±$2
Median year built	1965 ±2	1992 ±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 city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Carolina	United States
Hispanic or Latino	338 ±139	4.2% ±1.7	7.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,096 ±358	50.7% ±4.4	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	3,478 ±368	43.0% ±4.6	24.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 15	0% to 0.2%	1.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 20	0% to 0.2%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 15	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 20	0% to 0.2%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	58 to 254	0.7% to 3.1%	3.7% ±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 city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Carolina	United States
Born in the state	6,470 ±318	80.1% ±3.9	52.6% ±0.2	57.3% ±<0.1
Born in another state	1,393 ±330	17.2% ±4.1	40.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	0 to 48	0% to 0.6%	1.2% ±0.1	1.7% ±<0.1
Born abroad	32 to 356	0.4% to 4.4%	5.8% ±0.1	14.1% ±<0.1
Naturalized citizens	0 to 50	0% to 0.6%	2.6% ±0.1	7.4% ±<0.1
Not citizens	17 to 335	0.2% to 4.1%	3.2% ±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 city among the places of South Carolina

77th of 102 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the South Carolina page.

Places of South Carolina near Union city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Georgetown city	8,565 ±21
Travelers Rest city	8,370 ±31
White Knoll CDP	8,310 ±816
Camden city	8,267 ±19
Valley Falls CDP	8,239 ±1,259
Union city	8,079 ±34
Bennettsville city	7,751 ±25
Clinton city	7,676 ±28
Sans Souci CDP	7,665 ±737
Forestbrook CDP	7,479 ±1,423
Hartsville city	7,419 ±27

Rankings this appears in

No. 2 Places in South Carolina by poverty rate
No. 9 Places in South Carolina by median age
No. 25 Places by poverty rate
No. 33 Places in South Carolina by Hispanic or Latino share
No. 57 Places in South Carolina by homeownership rate
No. 61 Places in South Carolina by median rent

Sources

Census Bureau population estimates — incorporated places and New England towns — 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

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026