Groundwork

Fitness and classes · County · California

Gyms and studios in Humboldt County, CA

How Humboldt County, CA compares with other counties and the U.S. for gyms and studios: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 31 out of 100: Lower middle

Ranked #1,763 of 2,088 scored counties
#55 of 55 scored counties in California

Listings
106
7 chain locations (7%)
Official establishments
29
−6.4% since 2019
Household spending a year
$49.7M
On memberships, classes and admissions · $904 a household
Spending per listing
$469K
29% below the U.S.
Listings per 10k households
19.3
30% above the U.S.
Population, 2025
131,647
−3.4% since 2020

See the gyms and studios around any address in Humboldt 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 Humboldt 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

Humboldt County scores 31 (lower middle) on the Groundwork market score for gyms and studios, ranking #1,763 of 2,088 scored counties and #55 of 55 scored counties in California. That puts it in the bottom quarter of counties.

Households in Humboldt County spend about $49.7M a year on memberships, classes and admissions, or $904 per household, 8% below the U.S. average. That is about $469K of household spending for each location on map listings, 29% below the U.S. figure of $662K.

Humboldt County has 106 gyms and studios on map listings as of September 2026. Chain locations make up 7% of them, against 20% across the U.S. That is 19.3 per 10,000 households, 30% above the U.S. rate of 14.9.

The official count of businesses with payroll classed as fitness centers and recreation instruction in Humboldt County was 29 in 2023, down 6.4% from 2019. That is one for every 1,894 households, against one for every 1,641 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $70K have gone to businesses classed as fitness centers and recreation instruction in Humboldt County. Between 2020 and 2025, the population of Humboldt County declined 3.4%, against +3.1% for the U.S.

How Humboldt County compares

The same measures for California 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 Humboldt County, CA compared with California and the U.S.
MeasureHumboldt CountyCaliforniaU.S.
Listings per 10k households19.317.114.9
Spending per listing$469K$837K$662K
Households per official establishment1,8941,2811,641
Official establishment growth, 2019–2023−6.4%+14.7%+8.2%
Population growth, 2020–2025−3.4%−0.4%+3.1%
Spending per household on memberships, classes and admissions$904$1,435$983
Median household income$61,160$99,122$80,734
Groundwork market score3160

Official counts and lending

Businesses

Official establishments, 2019 to 2023
31 → 29−6.4% over the period
Employees, 2023
385
Annual payroll, 2023
$5.9M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
1067 chain locations
Listings at the U.S. rate for this spending
75The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
2
Amount
$70K

SBA-backed loans to businesses classed as fitness centers and recreation instruction in Humboldt 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 Humboldt County

Population, 2025 estimate
131,647−3.4% since 2020
Households
54,922
Median age
40.4
Homes lived in by their owners
57%
Vehicles per household
1.9
Land area
3,568 sq. mi.
People per square mile
38
Median household income
$61,160+27.3% vs. 2015–2019, before inflation
Average household income
$86,194
Median home value
$446,900
Jobs located here
48,178
Daytime population
133,286Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Humboldt 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 Humboldt 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 California

Every California market ranked →

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

Top counties in California

Counties in California ranked for gyms and studios by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Yuba County, CA92207.0$1.4M+8.2%#7 of 2,088
2Madera County, CA845011.0$952K+7.4%#35 of 2,088
3Calaveras County, CA822614.1$823K+2.8%#54 of 2,088
4San Joaquin County, CA8032813.4$942K+5.5%#71 of 2,088
5Amador County, CA792414.9$755K+3.2%#84 of 2,088
6San Benito County, CA782512.2$1.3M+8.6%#86 of 2,088
7Merced County, CA789811.4$796K+5.1%#97 of 2,088
8Colusa County, CA7756.7$1.5M−0.1%#100 of 2,088
9Tulare County, CA7714710.3$950K+2.4%#107 of 2,088
10Tehama County, CA76208.1$1.1M−1.7%#124 of 2,088
55Humboldt County, CA3110619.3$469K−3.4%#1,763 of 2,088

Other business types in Humboldt County

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

Questions

How many gyms and studios are in Humboldt County, CA?

Map listings as of September 2026 show 106 gyms and studios in Humboldt County. 7 of them (7%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 29 businesses with payroll classed as fitness centers and recreation instruction in 2023, down 6.4% from 2019.

How much do households in Humboldt County, CA spend on memberships, classes and admissions?

About $49.7M a year, or $904 per household. That is 8% below the U.S. average (an index of 92, where 100 is the U.S. average). Spread across the 106 gyms and studios on map listings, it comes to $469K per location. It is estimated from the incomes of the 54,922 households in Humboldt County and national spending patterns by income.

How does Humboldt County, CA compare with the U.S. for gyms and studios?

Humboldt County has 19.3 gyms and studios per 10,000 households, 30% above the U.S. rate of 14.9. Spending per location is $469K, 29% below the U.S. figure of $662K. At the U.S. ratio of gyms and studios to household spending, Humboldt County would have about 75, against 106 on map listings. There is one business with payroll in the industry for every 1,894 households, against one for every 1,641 across the U.S. The official count fell 6.4% from 2019 to 2023, against +8.2% for the U.S.

How fast is Humboldt County, CA growing?

Population estimates put Humboldt County at 131,647 people in 2025, down 3.4% since 2020, against +3.1% for the U.S. It has 54,922 households. The median household income in Humboldt County is $61,160 a year, 24% below the U.S. median of $80,734. That rose 27.3% 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. Humboldt County scores 31 for gyms and studios (lower middle), #1,763 of 2,088 scored counties.

How can I see the market around a specific site?

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

Screening a site or an acquisition in Humboldt 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 Humboldt 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.