Commercial Real Estate Market in Union, SC
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
59 active listings and 633 off-market properties in Union, SC.
Market Trends
Union, SC spans 242.7 square miles in Union County, South Carolina. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Union, SC runs 20.2% across the South region in 2025, up from 14.4% in 2019.
Vacancy Rate % in South region
Retail
Retail vacancy in Union, SC runs 5.4% across the South region in 2025, down from 7% in 2020.
Vacancy Rate % in South region
Industrial
Industrial vacancy in Union, SC runs 7.9% across the South region in 2025, up from 6% in 2019. Nearly 2.3x the 2022 low of 3.5%.
Vacancy Rate % in South region
Multifamily
Multifamily vacancy in Union, SC runs 11.3% across the South region in 2025, up from 8.5% in 2022.
Vacancy Rate % in South region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 75.3%
- Commercial 19.7%
- Industrial 3.8%
- Civic 0.3%
Largest Zones share of zoned land by district
Residential
Residential
Highway Commercial
Residential
Residential
Union, SC zones 5,141 acres across 11 districts. Commercial zoning covers 19.7% of zoned land, residential 75.3% and industrial 3.8%. The largest single district is Residential at 29.4%. For commercial buyers the practical constraint is that only 23.5% of land carries a commercial or industrial designation.
Residential (R-10)
This residential zone is established to provide for a slightly higher population density but with basic restrictions similar to those in Zone R-15, The principal use of land is for single family, two family dwellings and for related recreational, religious and educational facilities normally required to provide an orderly and attractive residential area
Market overview
Demographics & Economy
Union, SC has 18,068 residents in 9,010 households. Density runs 74 people per square mile. Median household income here is $40,178 and median gross rent $789 a month.
18,068
Population
9,010
Households
2
Avg Household Size
44
Median Age
13%
College-Educated
82%
High-School Grad
242.7 sq mi
ZIP Area
74
Density / Sq Mi
$40,178
Median Household Income
$35,670
Median Earnings
$789
Median Rent
$103,000
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Buffalo | — | — |
| Jonesville | — | — |
| Kelton | — | — |
| Lockhart | — | — |
Frequently Asked Questions
What zoning applies to commercial property in Union?
Union, SC zones 5,141 acres across 11 districts, of which 19.7% is commercial and 3.8% industrial. The largest single district is Residential at 29.4% of zoned land. This residential zone is established to provide for a slightly higher population density but with basic restrictions similar to those in Zone R-15, The principal use of land is for single family, two family dwellings and for related recreational, religious and educational facilities normally required to provide an orderly and attractive residential area Residential zoning covers 75.3% and open space 0%.
Where does Realmo's Union market data come from?
Realmo compiles Union, SC figures from 2 recent recorded sales, 53 active sale listings, 6 active lease listings, 633 tracked off-market properties, the current Union zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 53 active for-sale and 6 active for-lease listings in Union, SC. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Zoning and land use
- The current municipal zoning release: 5,141 zoned acres across 11 districts. Shares are of zoned land, so parcels the release leaves unclassified are excluded from the mix.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 August 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at South region level, retail vacancy is reported at South region level and industrial vacancy is reported at South region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 August 2026 · report a data issue
