What is the population of Union city?

Union city has 8,047 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #75 of 475 in South Carolina.

What is the median household income in Union city?

Median household income in Union city is $34,112 a year, 56.6% below the national figure of $78,538.

How much does it cost to rent or buy in Union city?

Median gross rent is $789 a month and the median home value is $103,400, so rent absorbs about 27.8% of median household income.

Is Union city affordable compared with the rest of the US?

Homes cost about 3× the local median income here versus roughly 3.9× nationally, so Union city is more affordable to buy in than the typical US market, and rent takes 27.8% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

South Carolina · Census place 73105

Union, SC population, income and ZIP codes

Quick answer

The population of the city of Union, South Carolina (Union, SC — Census place “Union city”) is 8,047 residents, ranking #75 of 475 places in South Carolina. Median household income is $34,112, the median home is worth $103,400 and median gross rent runs $789 a month. Looking for the Union South Carolina ZIP code list? 1 ZIP codes serve Union, SC: 29379.

Population: 8,047Union city residents
Median household income: $34,112Past 12 months, inflation adjusted
Median home value: $103,400Owner-occupied units
Median gross rent: $789Rent plus utilities, monthly
Median age: 46.8 yrsAll residents
Homeownership rate: 50.8%Owner-occupied households

Union ZIP codes (South Carolina)

Census ZCTAs whose delivery area overlaps Union.

The Union SC ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

29379

What the numbers mean in Union city

Housing cost measured against local earnings.

A household earning the Union city median would spend about 27.8% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 3.0× the median household income; nationally that ratio sits near 4.5×. Poverty affects 26.4% of residents and 50.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Union city, SC in context

How this area compares with national benchmarks.

Union city is a mid-size town in South Carolina, with 8,047 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #75 of 475 ranked by population — larger than 84% of them. The median age here is 46.8 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Union city earn a median of $34,112 a year, 56.6% below the national figure of $78,538 and 36% below the $53,071 median for the 263 South Carolina cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 26.4% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Union city is valued at $103,400, 65.9% below the national figure and 42% below the $177,100 peer median, while median gross rent runs $789 a month, 43.9% below the national figure, or roughly $9,468 across a full year. A household on the local median income would put about 27.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 3×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 50.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in South Carolina.

More South Carolina coverage.

Frequently asked questions

Common questions about this area.

What is the population of Union city?: Union city has 8,047 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #75 of 475 in South Carolina.
What is the median household income in Union city?: Median household income in Union city is $34,112 a year, 56.6% below the national figure of $78,538.
How much does it cost to rent or buy in Union city?: Median gross rent is $789 a month and the median home value is $103,400, so rent absorbs about 27.8% of median household income.
Is Union city affordable compared with the rest of the US?: Homes cost about 3× the local median income here versus roughly 3.9× nationally, so Union city is more affordable to buy in than the typical US market, and rent takes 27.8% of median income against the 30% cost-burden line.
How current is this Union city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.