Groundwork

Food and drink · County · South Dakota

Sit-down restaurants in Union County, SD

How Union County, SD compares with other counties and the U.S. for sit-down restaurants: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 80 out of 100: High

Ranked #129 of 2,405 scored counties
#2 of 18 scored counties in South Dakota

Listings
34
13 chain locations (38%)
Official establishments
8
Businesses with payroll, 2023
Household spending a year
$31.5M
On food away from home · $4,313 a household
Spending per listing
$927K
40% above the U.S.
Listings per 10k households
46.5
24% below the U.S.
Population, 2025
17,402
+3.3% since 2020

See the sit-down restaurants around any address in Union County

The site report maps the sit-down restaurants 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.

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

What this means

Union County scores 80 (high) on the Groundwork market score for sit-down restaurants, ranking #129 of 2,405 scored counties and #2 of 18 scored counties in South Dakota. That puts it in the top 10% of counties for sit-down restaurants.

At $4,313 per household (6% above the U.S. average), households in Union County spend about $31.5M a year on food away from home. Spread across 34 sit-down restaurants, that is $927K per restaurant, 40% above the U.S. figure of $664K. The spending figure covers all food away from home, not only sit-down restaurants.

There are 34 sit-down restaurants on map listings in Union County as of September 2026. Of those, 13 are chain locations, or 38%, against 29% across the U.S. That comes to 46.5 for every 10,000 households, 24% below the U.S. rate of 61.3.

The official count of businesses with payroll classed as full-service restaurants in Union County was 8 in 2023. That is one for every 914 households, against one for every 500 across the U.S. Population estimates put the population change in Union County from 2020 to 2025 at +3.3%, in step with the U.S. (+3.1%).

How Union County compares

The same measures for South Dakota and the whole U.S. Spending per listing divides a year of household spending on all food away from home by the sit-down restaurants counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Sit-down restaurants in Union County, SD compared with South Dakota and the U.S.
MeasureUnion CountySouth DakotaU.S.
Listings per 10k households46.552.361.3
Spending per listing$927K$737K$664K
Households per official establishment914542500
Official establishment growth, 2019–2023n/a−5.5%+1.5%
Population growth, 2020–2025+3.3%+5.3%+3.1%
Spending per household on food away from home$4,313$3,849$4,070
Median household income$89,636$75,081$80,734
Groundwork market score8062

Official counts and lending

Businesses

Official establishments, 2019 to 2023
11 → 8
Employees, 2023
149
Annual payroll, 2023
$2.8M
One-person businesses, 2023
0Businesses with no payroll
Map listings, September 2026
3413 chain locations
Listings at the U.S. rate for this spending
48The 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 full-service restaurants 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
17,402+3.3% since 2020
Households
7,310
Median age
40.9
Homes lived in by their owners
73%
Vehicles per household
2.2
Land area
462 sq. mi.
People per square mile
37
Median household income
$89,636+27.4% vs. 2015–2019, before inflation
Average household income
$124,814
Median home value
$301,100
Jobs located here
9,648
Daytime population
19,509Residents 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 sit-down restaurants 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.

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Sit-down restaurants across South Dakota

Every South Dakota market ranked →

The highest-scoring counties in South Dakota for sit-down restaurants, numbered among those based in South Dakota, with Union County marked.

Top counties in South Dakota

Counties in South Dakota ranked for sit-down restaurants by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Lincoln County, SD977727.6$1.6M+17.5%#1 of 2,405
2Union County, SD803446.5$927K+3.3%#129 of 2,405
3Meade County, SD794436.8$1.1M+2.7%#147 of 2,405
4Minnehaha County, SD6445653.8$738K+7.6%#584 of 2,405
5Beadle County, SD623141.1$869K+2.4%#661 of 2,405
6Brown County, SD577445.4$822K−1.7%#858 of 2,405
7Brookings County, SD577755.8$673K+9.6%#877 of 2,405
8Butte County, SD552251.1$752K+5.5%#955 of 2,405
9Pennington County, SD5026256.5$680K+6.6%#1,177 of 2,405
10Lake County, SD462348.8$798K−0.2%#1,348 of 2,405

Other business types in Union County

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

Questions

How many sit-down restaurants are in Union County, SD?

As of September 2026, map listings count 34 sit-down restaurants in Union County. 13 of them (38%) are chain locations. The listings count restaurants of every cuisine, pizza included. Official counts show 8 businesses with payroll classed as full-service restaurants in 2023.

How much do households in Union County, SD spend on food away from home?

About $31.5M a year, or $4,313 per household. That is 6% above the U.S. average (an index of 106, where 100 is the U.S. average). Spread across the 34 sit-down restaurants on map listings, it comes to $927K per restaurant. That spending covers all food away from home, which sit-down restaurants share with other businesses in the trade. It is estimated from the incomes of the 7,310 households in Union County and national spending patterns by income.

How does Union County, SD compare with the U.S. for sit-down restaurants?

Union County has 46.5 sit-down restaurants per 10,000 households, 24% below the U.S. rate of 61.3. Spending per restaurant is $927K, 40% above the U.S. figure of $664K. At the U.S. ratio of sit-down restaurants to household spending, Union County would have about 48, against 34 on map listings. There is one business with payroll in the industry for every 914 households, against one for every 500 across the U.S.

How fast is Union County, SD growing?

Population estimates put Union County at 17,402 people in 2025, up 3.3% since 2020, in step with the U.S. (+3.1%). It has 7,310 households. Median household income in Union County is $89,636, 11% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 27.4%, 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 80 for sit-down restaurants (high), #129 of 2,405 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 sit-down restaurants 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 sit-down restaurants · 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.