Groundwork

Fitness and classes · County · New Jersey

Gyms and studios in Hunterdon County, NJ

The gyms and studios in Hunterdon County, NJ, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 46 out of 100: Lower middle

Ranked #1,262 of 2,088 scored counties
#18 of 21 scored counties in New Jersey

Listings
139
23 chain locations (17%)
Official establishments
50
−9.1% since 2019
Household spending a year
$80.5M
On memberships, classes and admissions · $1,582 a household
Spending per listing
$579K
13% below the U.S.
Listings per 10k households
27.3
83% above the U.S.
Population, 2025
131,781
+2.3% since 2020

See the gyms and studios around any address in Hunterdon 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 Hunterdon 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

Households in Hunterdon County spend about $80.5M a year on memberships, classes and admissions, or $1,582 per household, 61% above the U.S. average. That is about $579K of household spending for each location on map listings, 13% below the U.S. figure of $662K.

There are 139 gyms and studios on map listings in Hunterdon County as of September 2026. Chain locations make up 17% of them, against 20% across the U.S. Per 10,000 households, that is 27.3, 83% above the U.S. rate of 14.9.

The official count of businesses with payroll classed as fitness centers and recreation instruction in Hunterdon County was 50 in 2023, down 9.1% from 2019. That is one for every 1,017 households, against one for every 1,641 across the U.S. Since fiscal 2022, 5 SBA-backed loans worth $1.3M have gone to businesses classed as fitness centers and recreation instruction in Hunterdon County.

Population estimates put the population change in Hunterdon County from 2020 to 2025 at +2.3%, slower than the U.S. (+3.1%). For gyms and studios, Hunterdon County has a Groundwork market score of 46 (lower middle): #1,262 of 2,088 scored counties and #18 of 21 scored counties in New Jersey.

How Hunterdon County compares

The same measures for New Jersey 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 Hunterdon County, NJ compared with New Jersey and the U.S.
MeasureHunterdon CountyNew JerseyU.S.
Listings per 10k households27.318.314.9
Spending per listing$579K$675K$662K
Households per official establishment1,0171,1731,641
Official establishment growth, 2019–2023−9.1%−1.0%+8.2%
Population growth, 2020–2025+2.3%+3.0%+3.1%
Spending per household on memberships, classes and admissions$1,582$1,238$983
Median household income$141,715$103,556$80,734
Groundwork market score4650

Official counts and lending

Businesses

Official establishments, 2019 to 2023
55 → 50−9.1% over the period
Employees, 2023
875
Annual payroll, 2023
$18.4M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
13923 chain locations
Listings at the U.S. rate for this spending
122The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
5
Amount
$1.3M

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

Population, 2025 estimate
131,781+2.3% since 2020
Households
50,860
Median age
45.8
Homes lived in by their owners
85%
Vehicles per household
2.0
Land area
428 sq. mi.
People per square mile
304
Median household income
$141,715+22.8% vs. 2015–2019, before inflation
Average household income
$185,175
Median home value
$517,200
Jobs located here
48,352
Daytime population
111,173Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Hunterdon 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 Hunterdon County. Signed out, you see a blurred preview; on an account, each report is one action.

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Gyms, studios and classes across New Jersey

Every New Jersey market ranked →

The highest-scoring counties in New Jersey for gyms and studios, numbered among those based in New Jersey, with Hunterdon County marked.

Top counties in New Jersey

Counties in New Jersey ranked for gyms and studios by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Ocean County, NJ6930112.3$840K+5.6%#282 of 2,088
2Hudson County, NJ6739013.0$902K+1.8%#337 of 2,088
3Warren County, NJ656414.1$764K+3.2%#416 of 2,088
4Salem County, NJ642911.7$769K+2.3%#455 of 2,088
5Middlesex County, NJ6347815.5$828K+2.6%#484 of 2,088
6Passaic County, NJ6224413.6$776K+1.6%#523 of 2,088
7Burlington County, NJ6031317.7$704K+4.3%#595 of 2,088
8Essex County, NJ6049615.5$699K+4.2%#597 of 2,088
9Union County, NJ5637818.6$680K+5.0%#776 of 2,088
10Sussex County, NJ5611620.1$639K+2.9%#782 of 2,088
18Hunterdon County, NJ4613927.3$579K+2.3%#1,262 of 2,088

Other business types in Hunterdon County

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

Questions

How many gyms and studios are in Hunterdon County, NJ?

As of September 2026, map listings count 139 gyms and studios in Hunterdon County. 23 of them (17%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 50 businesses with payroll classed as fitness centers and recreation instruction in 2023, down 9.1% from 2019.

How much do households in Hunterdon County, NJ spend on memberships, classes and admissions?

About $80.5M a year, or $1,582 per household. That is 61% above the U.S. average (an index of 161, where 100 is the U.S. average). Spread across the 139 gyms and studios on map listings, it comes to $579K per location. It is estimated from the incomes of the 50,860 households in Hunterdon County and national spending patterns by income.

How does Hunterdon County, NJ compare with the U.S. for gyms and studios?

Hunterdon County has 27.3 gyms and studios per 10,000 households, 83% above the U.S. rate of 14.9. Spending per location is $579K, 13% below the U.S. figure of $662K. At the U.S. ratio of gyms and studios to household spending, Hunterdon County would have about 122, against 139 on map listings. There is one business with payroll in the industry for every 1,017 households, against one for every 1,641 across the U.S. The official count fell 9.1% from 2019 to 2023, against +8.2% for the U.S.

How fast is Hunterdon County, NJ growing?

Population estimates put Hunterdon County at 131,781 people in 2025, up 2.3% since 2020, slower than the U.S. (+3.1%). It has 50,860 households. The median household income in Hunterdon County is $141,715 a year, 76% above the U.S. median of $80,734. That rose 22.8% 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. Hunterdon County scores 46 for gyms and studios (lower middle), #1,262 of 2,088 scored counties.

How can I see the market around a specific site?

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

Screening a site or an acquisition in Hunterdon 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 Hunterdon 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.