Groundwork

Groceries and convenience · County · South Carolina

Convenience stores in Union County, SC

How Union County, SC compares with other counties and the U.S. for convenience stores: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 11 out of 100: Low

Ranked #2,178 of 2,261 scored counties
#34 of 42 scored counties in South Carolina

Listings
19
10 chain locations (53%)
Official establishments
7
Businesses with payroll, 2023
Household spending a year
$59.4M
On groceries · $5,114 a household
Spending per listing
$3.1M
60% below the U.S.
Listings per 10k households
16.4
2.1 times the U.S.
Population, 2025
26,799
−1.4% since 2020

See the convenience stores around any address in Union County

The site report maps the convenience stores on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

The Groundwork market score for convenience stores in Union County is 11 (low), #2,178 of 2,261 scored counties and #34 of 42 scored counties in South Carolina. That puts it in the bottom quarter of counties.

Map listings as of September 2026 show 19 convenience stores in Union County. Of those, 10 are chain locations, or 53%, against 60% across the U.S. That is 16.4 per 10,000 households, 2.1 times the U.S. rate of 8.0.

At $5,114 per household (19% below the U.S. average), households in Union County spend about $59.4M a year on groceries. That works out to $3.1M per store, 60% below the U.S. figure of $7.9M. That spending covers all groceries, which convenience stores share with other businesses in the trade.

In 2023, official counts showed 7 businesses with payroll in Union County classed as convenience stores. That is one for every 1,659 households, against one for every 3,493 across the U.S. Population estimates show Union County declined 1.4% from 2020 to 2025, against +3.1% for the U.S.

How Union County compares

The same measures for South Carolina and the whole U.S. Spending per listing divides a year of household spending on all groceries by the convenience stores counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Convenience stores in Union County, SC compared with South Carolina and the U.S.
MeasureUnion CountySouth CarolinaU.S.
Listings per 10k households16.411.28.0
Spending per listing$3.1M$5.3M$7.9M
Households per official establishment1,6593,1103,493
Official establishment growth, 2019–2023n/a+45.2%+22.0%
Population growth, 2020–2025−1.4%+8.5%+3.1%
Spending per household on groceries$5,114$5,910$6,319
Median household income$41,621$69,324$80,734
Groundwork market score1136

Official counts and lending

Businesses

Official establishments, 2019 to 2023
7
Employees, 2023
15
Annual payroll, 2023
$259K
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
1910 chain locations
Listings at the U.S. rate for this spending
8The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
0
Amount
$0

SBA-backed loans to businesses classed as convenience stores in Union County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Union County

Population, 2025 estimate
26,799−1.4% since 2020
Households
11,611
Median age
44.2
Homes lived in by their owners
71%
Vehicles per household
1.8
Land area
514 sq. mi.
People per square mile
52
Median household income
$41,621+1.1% vs. 2015–2019, before inflation
Average household income
$60,230
Median home value
$103,600
Jobs located here
7,601
Daytime population
22,110Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Union County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the convenience stores on map listings by name and distance.

Or open the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Convenience stores across South Carolina

Every South Carolina market ranked →

The highest-scoring counties in South Carolina for convenience stores, numbered among those based in South Carolina, with Union County marked.

Top counties in South Carolina

Counties in South Carolina ranked for convenience stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Beaufort County, SC87647.8$8.3M+8.9%#76 of 2,261
2Greenville County, SC791707.7$8M+10.6%#201 of 2,261
3Dorchester County, SC73599.3$6.6M+10.1%#358 of 2,261
4York County, SC721049.1$7M+8.1%#381 of 2,261
5Berkeley County, SC719510.1$6.1M+18.7%#416 of 2,261
6Charleston County, SC6818610.4$6.2M+6.4%#503 of 2,261
7Aiken County, SC618111.6$5.1M+7.3%#737 of 2,261
8Horry County, SC6018711.8$4.9M+20.9%#778 of 2,261
9Kershaw County, SC592910.8$5.4M+11.6%#809 of 2,261
10Lexington County, SC5812210.0$6.1M+7.7%#834 of 2,261
34Union County, SC111916.4$3.1M−1.4%#2,178 of 2,261

Other business types in Union County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many convenience stores are in Union County, SC?

There are 19 convenience stores on map listings in Union County as of September 2026. 10 of them (53%) are chain locations. The listings count convenience stores without fuel. Official counts show 7 businesses with payroll classed as convenience stores in 2023.

How much do households in Union County, SC spend on groceries?

About $59.4M a year, or $5,114 per household. That is 19% below the U.S. average (an index of 81, where 100 is the U.S. average). Spread across the 19 convenience stores on map listings, it comes to $3.1M per store. The spending figure covers all groceries, not only convenience stores. It is estimated from the incomes of the 11,611 households in Union County and national spending patterns by income.

How does Union County, SC compare with the U.S. for convenience stores?

Union County has 16.4 convenience stores per 10,000 households, 2.1 times the U.S. rate of 8.0. Spending per store is $3.1M, 60% below the U.S. figure of $7.9M. At the national ratio of convenience stores to household spending, Union County would have about 8, against 19 on map listings. There is one business with payroll in the industry for every 1,659 households, against one for every 3,493 across the U.S.

How fast is Union County, SC growing?

Population estimates put Union County at 26,799 people in 2025, down 1.4% since 2020, against +3.1% for the U.S. It has 11,611 households. Median household income in Union County is $41,621, 48% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 1.1%, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Union County scores 11 for convenience stores (low), #2,178 of 2,261 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Union County. It maps the convenience stores on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for convenience stores · All 56 business types in Union County

Screening a site or an acquisition in Union County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.