Auto · County · New Jersey
Auto repair and car care businesses in Mercer County, NJ
The auto repair and car care businesses in Mercer County, NJ, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 62 out of 100: Upper middle
Ranked #657 of 2,401 scored counties
#6 of 21 scored counties in New Jersey
- Listings
- 374
- 89 chain locations (24%)
- Official establishments
- 177
- +4.1% since 2019
- Household spending a year
- $122.5M
- On vehicle maintenance and repairs · $850 a household
- Spending per listing
- $328K
- 22% above the U.S.
- Listings per 10k households
- 26.0
- 27% below the U.S.
- Population, 2025
- 399,289
- +3.3% since 2020
See the auto repair and car care businesses around any address in Mercer County
The site report maps the auto repair and car care businesses 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 Mercer County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey 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 374 auto repair and car care businesses in Mercer County. 89 of them (24%) are chain locations, against 24% across the U.S. That comes to 26.0 for every 10,000 households, 27% below the U.S. rate of 35.7.
At $850 per household (11% below the U.S. average), households in Mercer County spend about $122.5M a year on vehicle maintenance and repairs. That works out to $328K per business, 22% above the U.S. figure of $269K.
The official count of businesses with payroll classed as automotive repair and maintenance, and tire dealers in Mercer County was 177 in 2023, up 4.1% from 2019. That is one for every 814 households, against one for every 681 across the U.S. Another 229 one-person businesses have no payroll, by official counts. Since fiscal 2022, 8 SBA-backed loans worth $7.2M have gone to businesses classed as automotive repair and maintenance, and tire dealers in Mercer County.
Between 2020 and 2025, the population of Mercer County grew 3.3%, in step with the U.S. (+3.1%). Mercer County scores 62 (upper middle) on the Groundwork market score for auto repair and car care businesses, ranking #657 of 2,401 scored counties and #6 of 21 scored counties in New Jersey.
How Mercer County compares
The same measures for New Jersey and the whole U.S. Spending per listing divides a year of household spending on all vehicle maintenance and repairs by the auto repair and car care businesses counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Mercer County | New Jersey | U.S. |
|---|---|---|---|
| Listings per 10k households | 26.0 | 28.5 | 35.7 |
| Spending per listing | $328K | $304K | $269K |
| Households per official establishment | 814 | 692 | 681 |
| Official establishment growth, 2019–2023 | +4.1% | +0.4% | +4.1% |
| Population growth, 2020–2025 | +3.3% | +3.0% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $850 | $865 | $958 |
| Median household income | $100,645 | $103,556 | $80,734 |
| Groundwork market score | 62 | 58 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 170 → 177+4.1% over the period
- Employees, 2023
- 1,002
- Annual payroll, 2023
- $50.7M
- One-person businesses, 2023
- 229Businesses with no payroll
- Map listings, September 2026
- 37489 chain locations
- Listings at the U.S. rate for this spending
- 456The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 8
- Amount
- $7.2M
SBA-backed loans to businesses classed as automotive repair and maintenance, and tire dealers in Mercer 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 Mercer County
- Population, 2025 estimate
- 399,289+3.3% since 2020
- Households
- 144,114
- Median age
- 40.4
- Homes lived in by their owners
- 62%
- Vehicles per household
- 1.6
- Land area
- 225 sq. mi.
- People per square mile
- 1,719
- Median household income
- $100,645+24.2% vs. 2015–2019, before inflation
- Average household income
- $142,372
- Median home value
- $377,700
- Jobs located here
- 262,034
- Daytime population
- 469,892Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Mercer 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 auto repair and car care businesses on map listings by name and distance.
Or open the report at the center of Mercer County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardAuto repair and car care across New Jersey
Every New Jersey market ranked →The highest-scoring counties in New Jersey for auto repair and car care businesses, numbered among those based in New Jersey, with Mercer County marked.
Top counties in New Jersey
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Somerset County, NJ | 77 | 276 | 21.1 | $487K | +3.5% | #175 of 2,401 |
| 2Burlington County, NJ | 70 | 501 | 28.3 | $348K | +4.3% | #359 of 2,401 |
| 3Ocean County, NJ | 68 | 671 | 27.5 | $329K | +5.6% | #428 of 2,401 |
| 4Gloucester County, NJ | 63 | 349 | 31.0 | $323K | +3.3% | #620 of 2,401 |
| 5Monmouth County, NJ | 62 | 716 | 28.4 | $350K | +1.4% | #653 of 2,401 |
| 6Mercer County, NJ | 62 | 374 | 26.0 | $328K | +3.3% | #657 of 2,401 |
| 7Sussex County, NJ | 60 | 189 | 32.7 | $328K | +2.9% | #728 of 2,401 |
| 8Hudson County, NJ | 60 | 459 | 15.3 | $324K | +1.8% | #730 of 2,401 |
| 9Hunterdon County, NJ | 59 | 194 | 38.1 | $291K | +2.3% | #793 of 2,401 |
| 10Morris County, NJ | 58 | 616 | 31.9 | $322K | +3.2% | #824 of 2,401 |
Other business types in Mercer County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
- Auto repair and car care62
- Auto repair shops56
- Collision repair and body shops63
- Car washes and detailing67
- Tire shops67
- Oil change and quick lube71
- Gas stations61
- Insurance agencies52
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many auto repair and car care businesses are in Mercer County, NJ?
Mercer County has 374 auto repair and car care businesses on map listings as of September 2026. 89 of them (24%) are chain locations. The listings count repair shops, body shops, tire shops, car washes, oil change and parts stores. Official counts show 177 businesses with payroll classed as automotive repair and maintenance, and tire dealers in 2023, up 4.1% from 2019. Official counts list 229 one-person businesses without payroll.
How much do households in Mercer County, NJ spend on vehicle maintenance and repairs?
About $122.5M a year, or $850 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 374 auto repair and car care businesses on map listings, it comes to $328K per business. It is estimated from the incomes of the 144,114 households in Mercer County and national spending patterns by income.
How does Mercer County, NJ compare with the U.S. for auto repair and car care businesses?
Mercer County has 26.0 auto repair and car care businesses per 10,000 households, 27% below the U.S. rate of 35.7. Spending per business is $328K, 22% above the U.S. figure of $269K. At the national ratio of auto repair and car care businesses to household spending, Mercer County would have about 456, against 374 on map listings. There is one business with payroll in the industry for every 814 households, against one for every 681 across the U.S. The official count rose 4.1% from 2019 to 2023, against +4.1% for the U.S.
How fast is Mercer County, NJ growing?
Population estimates put Mercer County at 399,289 people in 2025, up 3.3% since 2020, in step with the U.S. (+3.1%). It has 144,114 households. Median household income in Mercer County is $100,645, 25% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 24.2%, 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. Mercer County scores 62 for auto repair and car care businesses (upper middle), #657 of 2,401 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Mercer County. It maps the auto repair and car care businesses 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 auto repair and car care businesses · All 56 business types in Mercer County
Screening a site or an acquisition in Mercer 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 Mercer 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.