Groundwork

Fitness and classes · County · New Jersey

Gyms in Union County, NJ

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

Groundwork market score · out of 100

Score 66 out of 100: Upper middle

Ranked #312 of 1,792 scored counties
#9 of 21 scored counties in New Jersey

Listings
160
43 chain locations (27%)
Official establishments
110
All fitness and recreational sports centers · +7.8% since 2019
Household spending a year
$257M
On memberships, classes and admissions · $1,264 a household
Spending per listing
$1.6M
23% above the U.S.
Listings per 10k households
7.9
4% above the U.S.
Population, 2025
601,863
+5.0% since 2020

See the gyms around any address in Union 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 Union 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 160 gyms in Union County. 43 of them (27%) are chain locations, against 28% across the U.S. That comes to 7.9 for every 10,000 households, 4% above the U.S. rate of 7.6.

At $1,264 per household (29% above the U.S. average), households in Union County spend about $257M a year on memberships, classes and admissions. That works out to $1.6M per gym, 23% above the U.S. figure of $1.3M. That spending covers all memberships, classes and admissions, which gyms share with other businesses in the trade.

The official count of businesses with payroll classed as fitness and recreational sports centers in Union County was 110 in 2023, up 7.8% from 2019. That is one for every 1,848 households, against one for every 3,109 across the U.S. The official count takes in all fitness and recreational sports centers, not only gyms: yoga, Pilates and fitness studios are counted too. Since fiscal 2022, 7 SBA-backed loans worth $3.8M have gone to businesses classed as fitness and recreational sports centers in Union County.

Population estimates show Union County grew 5.0% from 2020 to 2025, faster than the U.S. (+3.1%). Union County scores 66 (upper middle) on the Groundwork market score for gyms, ranking #312 of 1,792 scored counties and #9 of 21 scored counties in New Jersey. That puts it in the top quarter of counties.

How Union 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 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 Union County, NJ compared with New Jersey and the U.S.
MeasureUnion CountyNew JerseyU.S.
Listings per 10k households7.98.47.6
Spending per listing$1.6M$1.5M$1.3M
Households per official establishment (all fitness and recreational sports centers)1,8482,3463,109
Official establishment growth, 2019–2023+7.8%−7.1%+5.8%
Population growth, 2020–2025+5.0%+3.0%+3.1%
Spending per household on memberships, classes and admissions$1,264$1,238$983
Median household income$103,202$103,556$80,734
Groundwork market score6658

Official counts and lending

Businesses

Official establishments, 2019 to 2023
102 → 110All fitness and recreational sports centers · +7.8% over the period
Employees, 2023
2,400
Annual payroll, 2023
$49.5M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
16043 chain locations
Listings at the U.S. rate for this spending
198The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
7
Amount
$3.8M

SBA-backed loans to businesses classed as fitness and recreational sports centers in Union 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 Union County

Population, 2025 estimate
601,863+5.0% since 2020
Households
203,277
Median age
39.6
Homes lived in by their owners
57%
Vehicles per household
1.7
Land area
103 sq. mi.
People per square mile
5,637
Median household income
$103,202+28.7% vs. 2015–2019, before inflation
Average household income
$149,596
Median home value
$529,200
Jobs located here
247,379
Daytime population
551,422Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Union 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 Union 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 New Jersey for gyms, numbered among those based in New Jersey, with Union County marked.

Top counties in New Jersey

Counties in New Jersey ranked for gyms by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Salem County, NJ77124.8$1.9M+2.3%#100 of 1,792
2Ocean County, NJ771496.1$1.7M+5.6%#102 of 1,792
3Warren County, NJ75306.6$1.6M+3.2%#133 of 1,792
4Middlesex County, NJ732006.5$2M+2.6%#159 of 1,792
5Passaic County, NJ73985.5$1.9M+1.6%#160 of 1,792
6Sussex County, NJ71508.7$1.5M+2.9%#209 of 1,792
7Hudson County, NJ701916.4$1.8M+1.8%#222 of 1,792
8Essex County, NJ702257.0$1.5M+4.2%#233 of 1,792
9Union County, NJ661607.9$1.6M+5.0%#312 of 1,792
10Somerset County, NJ651269.6$1.7M+3.5%#351 of 1,792

Other business types in Union County

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

Questions

How many gyms are in Union County, NJ?

Union County has 160 gyms on map listings as of September 2026. 43 of them (27%) are chain locations. The listings count gyms and fitness centers. Official counts show 110 businesses with payroll classed as fitness and recreational sports centers in 2023, up 7.8% from 2019. That count covers all fitness and recreational sports centers (yoga, Pilates and fitness studios included), not only gyms.

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

About $257M a year, or $1,264 per household. That is 29% above the U.S. average (an index of 129, where 100 is the U.S. average). Spread across the 160 gyms on map listings, it comes to $1.6M per gym. The spending figure covers all memberships, classes and admissions, not only gyms. It is estimated from the incomes of the 203,277 households in Union County and national spending patterns by income.

How does Union County, NJ compare with the U.S. for gyms?

Union County has 7.9 gyms per 10,000 households, 4% above the U.S. rate of 7.6. Spending per gym is $1.6M, 23% above the U.S. figure of $1.3M. At the national ratio of gyms to household spending, Union County would have about 198, against 160 on map listings. There is one business with payroll in the industry for every 1,848 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 Union County, NJ growing?

Population estimates put Union County at 601,863 people in 2025, up 5.0% since 2020, faster than the U.S. (+3.1%). It has 203,277 households. The median household income in Union County is $103,202 a year, 28% above the U.S. median of $80,734. That rose 28.7% 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. Union County scores 66 for gyms (upper middle), #312 of 1,792 scored counties.

How can I see the market around a specific site?

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

Screening a site or an acquisition in Union 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 Union 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.