Groundwork

Fitness and classes · County · Colorado

Gyms in Jefferson County, CO

The gyms in Jefferson County, CO, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 59 out of 100: Upper middle

Ranked #548 of 1,792 scored counties
#20 of 32 scored counties in Colorado

Listings
221
84 chain locations (38%)
Official establishments
111
All fitness and recreational sports centers · +7.8% since 2019
Household spending a year
$365M
On memberships, classes and admissions · $1,510 a household
Spending per listing
$1.7M
27% above the U.S.
Listings per 10k households
9.1
20% above the U.S.
Population, 2025
580,451
−0.5% since 2020

See the gyms around any address in Jefferson County

The site report maps the gyms 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 Jefferson 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

Household spending on memberships, classes and admissions in Jefferson County comes to about $365M a year: $1,510 per household, 54% above the U.S. average. Spread across 221 gyms, that is $1.7M per gym, 27% above the U.S. figure of $1.3M. The spending figure covers all memberships, classes and admissions, not only gyms.

Jefferson County has 221 gyms on map listings as of September 2026. Of those, 84 are chain locations, or 38%, against 28% across the U.S. Per 10,000 households, that is 9.1, 20% above the U.S. rate of 7.6.

The official count of businesses with payroll classed as fitness and recreational sports centers in Jefferson County was 111 in 2023, up 7.8% from 2019. That is one for every 2,178 households, against one for every 3,109 across the U.S. That count covers all fitness and recreational sports centers (yoga, Pilates and fitness studios included), not only gyms. Since fiscal 2022, 18 SBA-backed loans worth $16.1M have gone to businesses classed as fitness and recreational sports centers in Jefferson County.

Between 2020 and 2025, the population of Jefferson County declined 0.5%, against +3.1% for the U.S. For gyms, Jefferson County has a Groundwork market score of 59 (upper middle): #548 of 1,792 scored counties and #20 of 32 scored counties in Colorado.

How Jefferson County compares

The same measures for Colorado and the whole U.S. Spending per listing divides a year of household spending on all memberships, classes and admissions by the gyms 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 in Jefferson County, CO compared with Colorado and the U.S.
MeasureJefferson CountyColoradoU.S.
Listings per 10k households9.18.57.6
Spending per listing$1.7M$1.6M$1.3M
Households per official establishment (all fitness and recreational sports centers)2,1782,4433,109
Official establishment growth, 2019–2023+7.8%+10.5%+5.8%
Population growth, 2020–2025−0.5%+3.9%+3.1%
Spending per household on memberships, classes and admissions$1,510$1,337$983
Median household income$110,656$95,470$80,734
Groundwork market score5965

Official counts and lending

Businesses

Official establishments, 2019 to 2023
103 → 111All fitness and recreational sports centers · +7.8% over the period
Employees, 2023
1,341
Annual payroll, 2023
$28M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
22184 chain locations
Listings at the U.S. rate for this spending
281The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
18
Amount
$16.1M

SBA-backed loans to businesses classed as fitness and recreational sports centers in Jefferson 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. These official figures cover all fitness and recreational sports centers, not only gyms.

Population and households in Jefferson County

Population, 2025 estimate
580,451−0.5% since 2020
Households
241,735
Median age
41.4
Homes lived in by their owners
71%
Vehicles per household
1.9
Land area
764 sq. mi.
People per square mile
758
Median household income
$110,656+33.3% vs. 2015–2019, before inflation
Average household income
$142,995
Median home value
$637,600
Jobs located here
259,943
Daytime population
537,313Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Jefferson 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 on map listings by name and distance.

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

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The highest-scoring counties in Colorado for gyms, numbered among those based in Colorado, with Jefferson County marked.

Top counties in Colorado

Counties in Colorado ranked for gyms by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Elbert County, CO9966.0$2.9M+16.5%#1 of 1,792
2Weld County, CO87786.3$2M+14.2%#26 of 1,792
3Adams County, CO841115.9$2.1M+6.6%#40 of 1,792
4Montrose County, CO79105.5$1.7M+4.1%#79 of 1,792
5Douglas County, CO741158.2$2.4M+10.9%#139 of 1,792
6Grand County, CO7379.4$1.2M+4.8%#175 of 1,792
7El Paso County, CO712227.7$1.6M+3.2%#205 of 1,792
8Montezuma County, CO7176.2$1.4M+3.0%#211 of 1,792
9Pueblo County, CO68456.6$1.3M+0.6%#277 of 1,792
10Delta County, CO6686.2$1.3M+3.6%#326 of 1,792
20Jefferson County, CO592219.1$1.7M−0.5%#548 of 1,792

Other business types in Jefferson County

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

Questions

How many gyms are in Jefferson County, CO?

Map listings as of September 2026 show 221 gyms in Jefferson County. 84 of them (38%) are chain locations. The listings count gyms and fitness centers. Official counts show 111 businesses with payroll classed as fitness and recreational sports centers in 2023, up 7.8% from 2019. The official count takes in all fitness and recreational sports centers, not only gyms: yoga, Pilates and fitness studios are counted too.

How much do households in Jefferson County, CO spend on memberships, classes and admissions?

About $365M a year, or $1,510 per household. That is 54% above the U.S. average (an index of 154, where 100 is the U.S. average). Spread across the 221 gyms on map listings, it comes to $1.7M per gym. That spending covers all memberships, classes and admissions, which gyms share with other businesses in the trade. It is estimated from the incomes of the 241,735 households in Jefferson County and national spending patterns by income.

How does Jefferson County, CO compare with the U.S. for gyms?

Jefferson County has 9.1 gyms per 10,000 households, 20% above the U.S. rate of 7.6. Spending per gym is $1.7M, 27% above the U.S. figure of $1.3M. At the U.S. ratio of gyms to household spending, Jefferson County would have about 281, against 221 on map listings. There is one business with payroll in the industry for every 2,178 households, against one for every 3,109 across the U.S. The official count rose 7.8% from 2019 to 2023, against +5.8% for the U.S.

How fast is Jefferson County, CO growing?

Population estimates put Jefferson County at 580,451 people in 2025, down 0.5% since 2020, against +3.1% for the U.S. It has 241,735 households. Median household income in Jefferson County is $110,656, 37% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.3%, 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. Jefferson County scores 59 for gyms (upper middle), #548 of 1,792 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Jefferson County. It maps the gyms 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 · All 56 business types in Jefferson County

Screening a site or an acquisition in Jefferson 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 Jefferson 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.