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HVAC and plumbing companies in Carroll County, NH
How Carroll County, NH compares with other counties and the U.S. for HVAC and plumbing companies: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 53 out of 100: Upper middle
Ranked #746 of 1,707 scored counties
#6 of 9 scored counties in New Hampshire
- Listings
- 16
- 1 chain location (6%)
- Official establishments
- 43
- +16.2% since 2019
- Household spending a year
- $71.1M
- On home repairs, maintenance and insurance · $3,253 a household
- Spending per listing
- $4.4M
- 7% below the U.S.
- Listings per 10k households
- 7.3
- 16% above the U.S.
- Population, 2025
- 52,784
- +5.0% since 2020
See the HVAC and plumbing companies around any address in Carroll County
The site report maps the HVAC and plumbing companies 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 Carroll 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 16 HVAC and plumbing companies in Carroll County. One of them (6%) is a chain location, against 4% across the U.S. That is 7.3 per 10,000 households, 16% above the U.S. rate of 6.3.
At $3,253 per household (8% above the U.S. average), households in Carroll County spend about $71.1M a year on home repairs, maintenance and insurance. That works out to $4.4M per company, 7% below the U.S. figure of $4.8M. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Carroll County was 43 in 2023, up 16.2% from 2019. That is one for every 508 households, against one for every 1,162 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $75K has gone to businesses classed as plumbing, heating and air-conditioning contractors in Carroll County.
Population estimates put the population change in Carroll County from 2020 to 2025 at +5.0%, faster than the U.S. (+3.1%). Carroll County scores 53 (upper middle) on the Groundwork market score for HVAC and plumbing companies, ranking #746 of 1,707 scored counties and #6 of 9 scored counties in New Hampshire.
How Carroll County compares
The same measures for New Hampshire and the whole U.S. Spending per listing divides a year of household spending on all home repairs, maintenance and insurance by the HVAC and plumbing companies 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 | Carroll County | New Hampshire | U.S. |
|---|---|---|---|
| Listings per 10k households | 7.3 | 7.3 | 6.3 |
| Spending per listing | $4.4M | $4.8M | $4.8M |
| Households per official establishment | 508 | 716 | 1,162 |
| Official establishment growth, 2019–2023 | +16.2% | +17.9% | +7.6% |
| Population growth, 2020–2025 | +5.0% | +2.7% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $3,253 | $3,518 | $3,018 |
| Median household income | $86,463 | $99,031 | $80,734 |
| Groundwork market score | 53 | 49 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 37 → 43+16.2% over the period
- Employees, 2023
- 122
- Annual payroll, 2023
- $6.4M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 161 chain location
- Listings at the U.S. rate for this spending
- 15The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $75K
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Carroll 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 Carroll County
- Population, 2025 estimate
- 52,784+5.0% since 2020
- Households
- 21,847
- Median age
- 52.4
- Homes lived in by their owners
- 83%
- Vehicles per household
- 1.9
- Land area
- 932 sq. mi.
- People per square mile
- 56
- Median household income
- $86,463+36.9% vs. 2015–2019, before inflation
- Average household income
- $113,348
- Median home value
- $388,900
- Jobs located here
- 19,503
- Daytime population
- 49,832Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Carroll 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 HVAC and plumbing companies on map listings by name and distance.
Or open the report at the center of Carroll County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHVAC and plumbing across New Hampshire
Every New Hampshire market ranked →The highest-scoring counties in New Hampshire for HVAC and plumbing companies, numbered among those based in New Hampshire, with Carroll County marked.
Top counties in New Hampshire
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Strafford County, NH | 70 | 28 | 5.4 | $6.2M | +3.0% | #203 of 1,707 |
| 2Sullivan County, NH | 65 | 6 | 3.6 | $8.6M | +2.1% | #319 of 1,707 |
| 3Cheshire County, NH | 65 | 13 | 4.2 | $7.5M | +2.3% | #324 of 1,707 |
| 4Grafton County, NH | 62 | 20 | 5.4 | $6.2M | +2.2% | #413 of 1,707 |
| 5Hillsborough County, NH | 56 | 135 | 8.0 | $4.5M | +2.5% | #645 of 1,707 |
| 6Carroll County, NH | 53 | 16 | 7.3 | $4.4M | +5.0% | #746 of 1,707 |
| 7Rockingham County, NH | 52 | 113 | 8.9 | $4.4M | +3.0% | #787 of 1,707 |
| 8Merrimack County, NH | 49 | 49 | 8.0 | $4.2M | +2.6% | #897 of 1,707 |
| 9Belknap County, NH | 41 | 25 | 9.5 | $3.5M | +2.1% | #1,179 of 1,707 |
Other business types in Carroll County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Carroll County, NH?
Carroll County has 16 HVAC and plumbing companies on map listings as of September 2026. One of them (6%) is a chain location. The listings count heating and air-conditioning companies and plumbers. Official counts show 43 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 16.2% from 2019.
How much do households in Carroll County, NH spend on home repairs, maintenance and insurance?
About $71.1M a year, or $3,253 per household. That is 8% above the U.S. average (an index of 108, where 100 is the U.S. average). Spread across the 16 HVAC and plumbing companies on map listings, it comes to $4.4M per company. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies. It is estimated from the incomes of the 21,847 households in Carroll County and national spending patterns by income.
How does Carroll County, NH compare with the U.S. for HVAC and plumbing companies?
Carroll County has 7.3 HVAC and plumbing companies per 10,000 households, 16% above the U.S. rate of 6.3. Spending per company is $4.4M, 7% below the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Carroll County would have about 15, against 16 on map listings. There is one business with payroll in the industry for every 508 households, against one for every 1,162 across the U.S. The official count rose 16.2% from 2019 to 2023, against +7.6% for the U.S.
How fast is Carroll County, NH growing?
Population estimates put Carroll County at 52,784 people in 2025, up 5.0% since 2020, faster than the U.S. (+3.1%). It has 21,847 households. The median household income in Carroll County is $86,463 a year, 7% above the U.S. median of $80,734. That rose 36.9% 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. Carroll County scores 53 for HVAC and plumbing companies (upper middle), #746 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Carroll County. It maps the HVAC and plumbing companies 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 HVAC and plumbing companies · All 56 business types in Carroll County
Screening a site or an acquisition in Carroll 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 Carroll 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.