Groundwork

Fitness and classes · County · South Dakota

Gyms and studios in Union County, SD

Competitor counts, household spending and official business counts for gyms and studios in Union County, SD, set against other counties and the U.S.

Groundwork market score · out of 100

Score 76 out of 100: High

Ranked #132 of 2,088 scored counties
#1 of 15 scored counties in South Dakota

Listings
10
2 chain locations (20%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$7.8M
On memberships, classes and admissions · $1,071 a household
Spending per listing
$783K
18% above the U.S.
Listings per 10k households
13.7
8% below the U.S.
Population, 2025
17,402
+3.3% since 2020

See the gyms and studios around any address in Union County

The site report maps the gyms and studios 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 76 (high) on the Groundwork market score for gyms and studios, ranking #132 of 2,088 scored counties and #1 of 15 scored counties in South Dakota. That puts it in the top 10% of counties for gyms and studios.

As of September 2026, map listings count 10 gyms and studios in Union County. 2 of them (20%) are chain locations, against 20% across the U.S. That is 13.7 per 10,000 households, 8% below the U.S. rate of 14.9.

Household spending on memberships, classes and admissions in Union County comes to about $7.8M a year: $1,071 per household, 9% above the U.S. average. Spread across 10 gyms and studios, that is $783K per location, 18% above the U.S. figure of $662K.

There is no official count of businesses with payroll classed as fitness centers and recreation instruction in Union County: counts under 3 aren’t published. Since fiscal 2022, 1 SBA-backed loan worth $630K has gone to businesses classed as fitness centers and recreation instruction in Union County. 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 memberships, classes and admissions by the gyms and studios counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Gyms, studios and classes in Union County, SD compared with South Dakota and the U.S.
MeasureUnion CountySouth DakotaU.S.
Listings per 10k households13.713.814.9
Spending per listing$783K$635K$662K
Households per official establishmentn/a1,8101,641
Official establishment growth, 2019–2023n/a+0.5%+8.2%
Population growth, 2020–2025+3.3%+5.3%+3.1%
Spending per household on memberships, classes and admissions$1,071$876$983
Median household income$89,636$75,081$80,734
Groundwork market score7654

Official counts and lending

Businesses

Official establishments, 2019 to 2023
n/a
Employees, 2023
n/a
Annual payroll, 2023
n/a
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
102 chain locations
Listings at the U.S. rate for this spending
12The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
1
Amount
$630K

SBA-backed loans to businesses classed as fitness centers and recreation instruction 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 gyms and studios 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

Gyms, studios and classes across South Dakota

Every South Dakota market ranked →

The highest-scoring counties in South Dakota for gyms and studios, numbered among those based in South Dakota, with Union County marked.

Top counties in South Dakota

Counties in South Dakota ranked for gyms and studios by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Union County, SD761013.7$783K+3.3%#132 of 2,088
2Beadle County, SD7456.6$1.2M+2.4%#152 of 2,088
3Meade County, SD671411.7$742K+2.7%#351 of 2,088
4Yankton County, SD621111.3$721K+1.5%#529 of 2,088
5Clay County, SD5959.0$827K+0.2%#623 of 2,088
6Minnehaha County, SD5512114.3$646K+7.6%#817 of 2,088
7Butte County, SD54716.3$547K+5.5%#883 of 2,088
8Pennington County, SD527215.5$569K+6.6%#979 of 2,088
9Lincoln County, SD515720.4$554K+17.5%#1,027 of 2,088
10Brookings County, SD471913.8$595K+9.6%#1,213 of 2,088

Other business types in Union County

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

Questions

How many gyms and studios are in Union County, SD?

Union County has 10 gyms and studios on map listings as of September 2026. 2 of them (20%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. No official count is published for fitness centers and recreation instruction in Union County: counts under 3 are left out.

How much do households in Union County, SD spend on memberships, classes and admissions?

About $7.8M a year, or $1,071 per household. That is 9% above the U.S. average (an index of 109, where 100 is the U.S. average). Spread across the 10 gyms and studios on map listings, it comes to $783K per location. 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 gyms and studios?

Union County has 13.7 gyms and studios per 10,000 households, 8% below the U.S. rate of 14.9. Spending per location is $783K, 18% above the U.S. figure of $662K. At the national ratio of gyms and studios to household spending, Union County would have about 12, against 10 on map listings.

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 76 for gyms and studios (high), #132 of 2,088 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 gyms and studios 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 gyms and studios · 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.