Home services · County · Idaho
HVAC and plumbing companies in Ada County, ID
How Ada County, ID 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 56 out of 100: Upper middle
Ranked #658 of 1,707 scored counties
#3 of 16 scored counties in Idaho
- Listings
- 162
- 8 chain locations (5%)
- Official establishments
- 212
- +12.8% since 2019
- Household spending a year
- $621.4M
- On home repairs, maintenance and insurance · $3,068 a household
- Spending per listing
- $3.8M
- 19% below the U.S.
- Listings per 10k households
- 8.0
- 27% above the U.S.
- Population, 2025
- 546,141
- +9.6% since 2020
See the HVAC and plumbing companies around any address in Ada 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 Ada 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
Households in Ada County spend about $621.4M a year on home repairs, maintenance and insurance, or $3,068 per household, 2% above the U.S. average. That is about $3.8M of household spending for each company on map listings, 19% below the U.S. figure of $4.8M. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies.
There are 162 HVAC and plumbing companies on map listings in Ada County as of September 2026. Chain locations make up 5% of them, against 4% across the U.S. That comes to 8.0 for every 10,000 households, 27% above the U.S. rate of 6.3.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Ada County was 212 in 2023, up 12.8% from 2019. That is one for every 955 households, against one for every 1,162 across the U.S. Since fiscal 2022, 13 SBA-backed loans worth $4.4M have gone to businesses classed as plumbing, heating and air-conditioning contractors in Ada County.
Population estimates show Ada County grew 9.6% from 2020 to 2025, faster than the U.S. (+3.1%). Ada County scores 56 (upper middle) on the Groundwork market score for HVAC and plumbing companies, ranking #658 of 1,707 scored counties and #3 of 16 scored counties in Idaho.
How Ada County compares
The same measures for Idaho 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 | Ada County | Idaho | U.S. |
|---|---|---|---|
| Listings per 10k households | 8.0 | 7.4 | 6.3 |
| Spending per listing | $3.8M | $3.8M | $4.8M |
| Households per official establishment | 955 | 789 | 1,162 |
| Official establishment growth, 2019–2023 | +12.8% | +19.3% | +7.6% |
| Population growth, 2020–2025 | +9.6% | +9.8% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $3,068 | $2,781 | $3,018 |
| Median household income | $91,502 | $77,800 | $80,734 |
| Groundwork market score | 56 | 32 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 188 → 212+12.8% over the period
- Employees, 2023
- 3,348
- Annual payroll, 2023
- $227.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 1628 chain locations
- Listings at the U.S. rate for this spending
- 131The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 13
- Amount
- $4.4M
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Ada 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 Ada County
- Population, 2025 estimate
- 546,141+9.6% since 2020
- Households
- 202,543
- Median age
- 39.5
- Homes lived in by their owners
- 71%
- Vehicles per household
- 2.0
- Land area
- 1,052 sq. mi.
- People per square mile
- 493
- Median household income
- $91,502+38.0% vs. 2015–2019, before inflation
- Average household income
- $124,631
- Median home value
- $512,300
- Jobs located here
- 294,737
- Daytime population
- 566,160Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Ada 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 Ada 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 Idaho
Every Idaho market ranked →The highest-scoring counties in Idaho for HVAC and plumbing companies, numbered among those based in Idaho, with Ada County marked.
Top counties in Idaho
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Latah County, ID | 75 | 6 | 3.7 | $6.9M | +5.6% | #115 of 1,707 |
| 2Jefferson County, ID | 61 | 5 | 4.9 | $5.8M | +13.6% | #451 of 1,707 |
| 3Ada County, ID | 56 | 162 | 8.0 | $3.8M | +9.6% | #658 of 1,707 |
| 4Bonner County, ID | 54 | 11 | 5.4 | $4.9M | +14.8% | #702 of 1,707 |
| 5Payette County, ID | 53 | 6 | 6.2 | $4.2M | +8.8% | #753 of 1,707 |
| 6Cassia County, ID | 51 | 5 | 5.9 | $4.4M | +6.6% | #818 of 1,707 |
| 7Jerome County, ID | 51 | 7 | 8.5 | $3.2M | +8.6% | #840 of 1,707 |
| 8Bingham County, ID | 46 | 11 | 6.8 | $4M | +6.4% | #997 of 1,707 |
| 9Nez Perce County, ID | 46 | 12 | 6.9 | $3.8M | +1.8% | #999 of 1,707 |
| 10Kootenai County, ID | 44 | 57 | 8.0 | $3.5M | +11.0% | #1,072 of 1,707 |
Other business types in Ada 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 trades52
- HVAC and plumbing56
- Electricians65
- Roofing and gutters48
- Lawn, cleaning and pest control39
- Landscaping and lawn care49
- House cleaning34
- Pest control43
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Ada County, ID?
As of September 2026, map listings count 162 HVAC and plumbing companies in Ada County. 8 of them (5%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 212 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 12.8% from 2019.
How much do households in Ada County, ID spend on home repairs, maintenance and insurance?
About $621.4M a year, or $3,068 per household. That is 2% above the U.S. average (an index of 102, where 100 is the U.S. average). Spread across the 162 HVAC and plumbing companies on map listings, it comes to $3.8M per company. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade. It is estimated from the incomes of the 202,543 households in Ada County and national spending patterns by income.
How does Ada County, ID compare with the U.S. for HVAC and plumbing companies?
Ada County has 8.0 HVAC and plumbing companies per 10,000 households, 27% above the U.S. rate of 6.3. Spending per company is $3.8M, 19% below the U.S. figure of $4.8M. At the U.S. ratio of HVAC and plumbing companies to household spending, Ada County would have about 131, against 162 on map listings. There is one business with payroll in the industry for every 955 households, against one for every 1,162 across the U.S. The official count rose 12.8% from 2019 to 2023, against +7.6% for the U.S.
How fast is Ada County, ID growing?
Population estimates put Ada County at 546,141 people in 2025, up 9.6% since 2020, faster than the U.S. (+3.1%). It has 202,543 households. Median household income in Ada County is $91,502, 13% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 38.0%, 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. Ada County scores 56 for HVAC and plumbing companies (upper middle), #658 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Ada 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 Ada County
Screening a site or an acquisition in Ada 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 Ada 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.