Groundwork

Fitness and classes · County · Wisconsin

Gyms and studios in Sauk County, WI

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

Groundwork market score · out of 100

Score 42 out of 100: Lower middle

Ranked #1,437 of 2,088 scored counties
#58 of 62 scored counties in Wisconsin

Listings
47
12 chain locations (26%)
Official establishments
14
Businesses with payroll, 2023
Household spending a year
$24.6M
On memberships, classes and admissions · $880 a household
Spending per listing
$524K
21% below the U.S.
Listings per 10k households
16.8
13% above the U.S.
Population, 2025
66,652
+1.3% since 2020

See the gyms and studios around any address in Sauk 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 Sauk 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

Households in Sauk County spend about $24.6M a year on memberships, classes and admissions, or $880 per household, 11% below the U.S. average. That is about $524K of household spending for each location on map listings, 21% below the U.S. figure of $662K.

There are 47 gyms and studios on map listings in Sauk County as of September 2026. Chain locations make up 26% of them, against 20% across the U.S. That is 16.8 per 10,000 households, 13% above the U.S. rate of 14.9.

The official count of businesses with payroll classed as fitness centers and recreation instruction in Sauk County was 14 in 2023. That is one for every 1,999 households, against one for every 1,641 across the U.S.

Population estimates put the population change in Sauk County from 2020 to 2025 at +1.3%, slower than the U.S. (+3.1%). The Groundwork market score for gyms and studios in Sauk County is 42 (lower middle), #1,437 of 2,088 scored counties and #58 of 62 scored counties in Wisconsin.

How Sauk County compares

The same measures for Wisconsin 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 Sauk County, WI compared with Wisconsin and the U.S.
MeasureSauk CountyWisconsinU.S.
Listings per 10k households16.813.814.9
Spending per listing$524K$668K$662K
Households per official establishment1,9991,6921,641
Official establishment growth, 2019–2023n/a+10.2%+8.2%
Population growth, 2020–2025+1.3%+1.3%+3.1%
Spending per household on memberships, classes and admissions$880$921$983
Median household income$79,541$77,485$80,734
Groundwork market score4246

Official counts and lending

Businesses

Official establishments, 2019 to 2023
17 → 14
Employees, 2023
55
Annual payroll, 2023
$1.2M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
4712 chain locations
Listings at the U.S. rate for this spending
37The 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 fitness centers and recreation instruction in Sauk 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 Sauk County

Population, 2025 estimate
66,652+1.3% since 2020
Households
27,987
Median age
42.3
Homes lived in by their owners
72%
Vehicles per household
2.0
Land area
832 sq. mi.
People per square mile
79
Median household income
$79,541+32.7% vs. 2015–2019, before inflation
Average household income
$98,005
Median home value
$258,600
Jobs located here
36,015
Daytime population
65,185Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Sauk 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 Sauk 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 Wisconsin

Every Wisconsin market ranked →

The highest-scoring counties in Wisconsin for gyms and studios, numbered among those based in Wisconsin, with Sauk County marked.

Top counties in Wisconsin

Counties in Wisconsin ranked for gyms and studios by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Calumet County, WI84178.0$1.3M+2.9%#32 of 2,088
2Oconto County, WI7984.8$1.8M+2.9%#75 of 2,088
3Trempealeau County, WI7675.6$1.5M+1.1%#118 of 2,088
4Iowa County, WI7687.9$1.2M+1.0%#120 of 2,088
5Sawyer County, WI7377.9$932K+4.0%#181 of 2,088
6Lafayette County, WI73710.4$799K+5.2%#187 of 2,088
7Washington County, WI726411.2$958K+1.8%#199 of 2,088
8Vernon County, WI72118.9$918K+2.4%#201 of 2,088
9Polk County, WI722311.8$739K+1.7%#214 of 2,088
10Clark County, WI7186.2$1.3M+1.2%#217 of 2,088
58Sauk County, WI424716.8$524K+1.3%#1,437 of 2,088

Other business types in Sauk County

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

Questions

How many gyms and studios are in Sauk County, WI?

As of September 2026, map listings count 47 gyms and studios in Sauk County. 12 of them (26%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 14 businesses with payroll classed as fitness centers and recreation instruction in 2023.

How much do households in Sauk County, WI spend on memberships, classes and admissions?

About $24.6M a year, or $880 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 47 gyms and studios on map listings, it comes to $524K per location. It is estimated from the incomes of the 27,987 households in Sauk County and national spending patterns by income.

How does Sauk County, WI compare with the U.S. for gyms and studios?

Sauk County has 16.8 gyms and studios per 10,000 households, 13% above the U.S. rate of 14.9. Spending per location is $524K, 21% below the U.S. figure of $662K. At the U.S. ratio of gyms and studios to household spending, Sauk County would have about 37, against 47 on map listings. There is one business with payroll in the industry for every 1,999 households, against one for every 1,641 across the U.S.

How fast is Sauk County, WI growing?

Population estimates put Sauk County at 66,652 people in 2025, up 1.3% since 2020, slower than the U.S. (+3.1%). It has 27,987 households. The median household income in Sauk County is $79,541 a year, in line with the U.S. median of $80,734. That rose 32.7% from the 2015–2019 survey, 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. Sauk County scores 42 for gyms and studios (lower middle), #1,437 of 2,088 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Sauk 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 Sauk County

Screening a site or an acquisition in Sauk 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 Sauk 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.