Groundwork

Fitness and classes · County · New Jersey

Gyms and studios in Warren County, NJ

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

Groundwork market score · out of 100

Score 65 out of 100: Upper middle

Ranked #416 of 2,088 scored counties
#3 of 21 scored counties in New Jersey

Listings
64
11 chain locations (17%)
Official establishments
24
−11.1% since 2019
Household spending a year
$48.9M
On memberships, classes and admissions · $1,077 a household
Spending per listing
$764K
15% above the U.S.
Listings per 10k households
14.1
5% below the U.S.
Population, 2025
112,953
+3.2% since 2020

See the gyms and studios around any address in Warren 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 Warren 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

As of September 2026, map listings count 64 gyms and studios in Warren County. Chain locations make up 17% of them, against 20% across the U.S. Per 10,000 households, that is 14.1, 5% below the U.S. rate of 14.9.

Households in Warren County spend about $48.9M a year on memberships, classes and admissions, or $1,077 per household, 10% above the U.S. average. That is about $764K of household spending for each location on map listings, 15% above the U.S. figure of $662K.

In 2023, official counts showed 24 businesses with payroll in Warren County classed as fitness centers and recreation instruction, down 11.1% from 2019. That is one for every 1,891 households, against one for every 1,641 across the U.S.

Population estimates show Warren County grew 3.2% from 2020 to 2025, in step with the U.S. (+3.1%). The Groundwork market score for gyms and studios in Warren County is 65 (upper middle), #416 of 2,088 scored counties and #3 of 21 scored counties in New Jersey. That puts it in the top quarter of counties.

How Warren 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 Warren County, NJ compared with New Jersey and the U.S.
MeasureWarren CountyNew JerseyU.S.
Listings per 10k households14.118.314.9
Spending per listing$764K$675K$662K
Households per official establishment1,8911,1731,641
Official establishment growth, 2019–2023−11.1%−1.0%+8.2%
Population growth, 2020–2025+3.2%+3.0%+3.1%
Spending per household on memberships, classes and admissions$1,077$1,238$983
Median household income$100,869$103,556$80,734
Groundwork market score6550

Official counts and lending

Businesses

Official establishments, 2019 to 2023
27 → 24−11.1% over the period
Employees, 2023
233
Annual payroll, 2023
$3.9M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
6411 chain locations
Listings at the U.S. rate for this spending
74The 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 Warren 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 Warren County

Population, 2025 estimate
112,953+3.2% since 2020
Households
45,391
Median age
44.5
Homes lived in by their owners
75%
Vehicles per household
1.9
Land area
357 sq. mi.
People per square mile
311
Median household income
$100,869+24.1% vs. 2015–2019, before inflation
Average household income
$118,920
Median home value
$346,500
Jobs located here
30,808
Daytime population
86,522Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Warren 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 Warren 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 Warren 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

Other business types in Warren County

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

Questions

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

Warren County has 64 gyms and studios on map listings as of September 2026. 11 of them (17%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 24 businesses with payroll classed as fitness centers and recreation instruction in 2023, down 11.1% from 2019.

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

About $48.9M a year, or $1,077 per household. That is 10% above the U.S. average (an index of 110, where 100 is the U.S. average). Spread across the 64 gyms and studios on map listings, it comes to $764K per location. It is estimated from the incomes of the 45,391 households in Warren County and national spending patterns by income.

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

Warren County has 14.1 gyms and studios per 10,000 households, 5% below the U.S. rate of 14.9. Spending per location is $764K, 15% above the U.S. figure of $662K. At the national ratio of gyms and studios to household spending, Warren County would have about 74, against 64 on map listings. There is one business with payroll in the industry for every 1,891 households, against one for every 1,641 across the U.S. The official count fell 11.1% from 2019 to 2023, against +8.2% for the U.S.

How fast is Warren County, NJ growing?

Population estimates put Warren County at 112,953 people in 2025, up 3.2% since 2020, in step with the U.S. (+3.1%). It has 45,391 households. Median household income in Warren County is $100,869, 25% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 24.1%, 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. Warren County scores 65 for gyms and studios (upper middle), #416 of 2,088 scored counties.

How can I see the market around a specific site?

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

Screening a site or an acquisition in Warren 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 Warren 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.