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HVAC and plumbing companies in Kauai County, HI
Competitor counts, household spending and official business counts for HVAC and plumbing companies in Kauai County, HI, set against other counties and the U.S.
Groundwork market score · out of 100
Score 49 out of 100: Lower middle
Ranked #892 of 1,707 scored counties
#4 of 4 scored counties in Hawaii
- Listings
- 16
- 0 chain locations (0%)
- Official establishments
- 28
- +27.3% since 2019
- Household spending a year
- $73M
- On home repairs, maintenance and insurance · $3,091 a household
- Spending per listing
- $4.6M
- 4% below the U.S.
- Listings per 10k households
- 6.8
- 8% above the U.S.
- Population, 2025
- 73,400
- +0.3% since 2020
See the HVAC and plumbing companies around any address in Kauai 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 Kauai 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 Kauai County. None of them are chain locations, against 4% across the U.S. Per 10,000 households, that is 6.8, 8% above the U.S. rate of 6.3.
Households in Kauai County spend about $73M a year on home repairs, maintenance and insurance, or $3,091 per household, 2% above the U.S. average. That is about $4.6M of household spending for each company on map listings, 4% 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.
In 2023, official counts showed 28 businesses with payroll in Kauai County classed as plumbing, heating and air-conditioning contractors, up 27.3% from 2019. That is one for every 844 households, against one for every 1,162 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $554K have gone to businesses classed as plumbing, heating and air-conditioning contractors in Kauai County.
Between 2020 and 2025, the population of Kauai County grew 0.3%, slower than the U.S. (+3.1%). Kauai County scores 49 (lower middle) on the Groundwork market score for HVAC and plumbing companies, ranking #892 of 1,707 scored counties and #4 of 4 scored counties in Hawaii.
How Kauai County compares
The same measures for Hawaii 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 | Kauai County | Hawaii | U.S. |
|---|---|---|---|
| Listings per 10k households | 6.8 | 4.4 | 6.3 |
| Spending per listing | $4.6M | $7.2M | $4.8M |
| Households per official establishment | 844 | 1,222 | 1,162 |
| Official establishment growth, 2019–2023 | +27.3% | +5.5% | +7.6% |
| Population growth, 2020–2025 | +0.3% | −1.3% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $3,091 | $3,202 | $3,018 |
| Median household income | $97,668 | $100,389 | $80,734 |
| Groundwork market score | 49 | 66 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 22 → 28+27.3% over the period
- Employees, 2023
- 143
- Annual payroll, 2023
- $9M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 160 chain locations
- 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
- 2
- Amount
- $554K
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Kauai 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 Kauai County
- Population, 2025 estimate
- 73,400+0.3% since 2020
- Households
- 23,632
- Median age
- 43.9
- Homes lived in by their owners
- 69%
- Vehicles per household
- 2.3
- Land area
- 620 sq. mi.
- People per square mile
- 119
- Median household income
- $97,668+16.9% vs. 2015–2019, before inflation
- Average household income
- $126,466
- Median home value
- $873,200
- Jobs located here
- 28,378
- Daytime population
- 63,469Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Kauai 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 Kauai 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 Hawaii
Every Hawaii market ranked →The highest-scoring counties in Hawaii for HVAC and plumbing companies, numbered among those based in Hawaii, with Kauai County marked.
Top counties in Hawaii
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Honolulu County, HI | 71 | 126 | 3.7 | $8.9M | −2.3% | #178 of 1,707 |
| 2Hawaii County, HI | 65 | 41 | 5.5 | $5.1M | +4.6% | #343 of 1,707 |
| 3Maui County, HI | 50 | 35 | 6.3 | $5.1M | −2.5% | #848 of 1,707 |
| 4Kauai County, HI | 49 | 16 | 6.8 | $4.6M | +0.3% | #892 of 1,707 |
Other business types in Kauai 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
- Home repair trades51
- HVAC and plumbing49
- Electricians45
- Roofing and gutters60
- Lawn, cleaning and pest control43
- Landscaping and lawn care53
- House cleaning29
- Pest control38
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Kauai County, HI?
Kauai County has 16 HVAC and plumbing companies on map listings as of September 2026. None of them are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 28 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 27.3% from 2019.
How much do households in Kauai County, HI spend on home repairs, maintenance and insurance?
About $73M a year, or $3,091 per household. That is 2% above the U.S. average (an index of 102, where 100 is the U.S. average). Spread across the 16 HVAC and plumbing companies on map listings, it comes to $4.6M 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 23,632 households in Kauai County and national spending patterns by income.
How does Kauai County, HI compare with the U.S. for HVAC and plumbing companies?
Kauai County has 6.8 HVAC and plumbing companies per 10,000 households, 8% above the U.S. rate of 6.3. Spending per company is $4.6M, 4% below the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Kauai County would have about 15, against 16 on map listings. There is one business with payroll in the industry for every 844 households, against one for every 1,162 across the U.S. The official count rose 27.3% from 2019 to 2023, against +7.6% for the U.S.
How fast is Kauai County, HI growing?
Population estimates put Kauai County at 73,400 people in 2025, up 0.3% since 2020, slower than the U.S. (+3.1%). It has 23,632 households. The median household income in Kauai County is $97,668 a year, 21% above the U.S. median of $80,734. That rose 16.9% 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. Kauai County scores 49 for HVAC and plumbing companies (lower middle), #892 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Kauai 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 Kauai County
Screening a site or an acquisition in Kauai 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 Kauai 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.