Home services · County · Washington
HVAC and plumbing companies in Snohomish County, WA
The HVAC and plumbing companies in Snohomish County, WA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 68 out of 100: Upper middle
Ranked #254 of 1,707 scored counties
#11 of 26 scored counties in Washington
- Listings
- 201
- 9 chain locations (4%)
- Official establishments
- 325
- +9.4% since 2019
- Household spending a year
- $1.1B
- On home repairs, maintenance and insurance · $3,388 a household
- Spending per listing
- $5.3M
- 12% above the U.S.
- Listings per 10k households
- 6.4
- 2% above the U.S.
- Population, 2025
- 870,656
- +4.9% since 2020
See the HVAC and plumbing companies around any address in Snohomish 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 Snohomish 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
Map listings as of September 2026 show 201 HVAC and plumbing companies in Snohomish County. Of those, 9 are chain locations, or 4%, against 4% across the U.S. Per 10,000 households, that is 6.4, 2% above the U.S. rate of 6.3.
Households in Snohomish County spend about $1.1B a year on home repairs, maintenance and insurance, or $3,388 per household, 12% above the U.S. average. That works out to $5.3M per company, 12% above 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.
Official counts show 325 businesses with payroll classed as plumbing, heating and air-conditioning contractors in Snohomish County in 2023, up 9.4% from 2019. That is one for every 973 households, against one for every 1,162 across the U.S. Since fiscal 2022, 17 SBA-backed loans worth $10.1M have gone to businesses classed as plumbing, heating and air-conditioning contractors in Snohomish County.
Population estimates show Snohomish County grew 4.9% from 2020 to 2025, faster than the U.S. (+3.1%). For HVAC and plumbing companies, Snohomish County has a Groundwork market score of 68 (upper middle): #254 of 1,707 scored counties and #11 of 26 scored counties in Washington. That puts it in the top quarter of counties.
How Snohomish County compares
The same measures for Washington 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 | Snohomish County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 6.4 | 4.9 | 6.3 |
| Spending per listing | $5.3M | $6.5M | $4.8M |
| Households per official establishment | 973 | 1,367 | 1,162 |
| Official establishment growth, 2019–2023 | +9.4% | +8.9% | +7.6% |
| Population growth, 2020–2025 | +4.9% | +3.6% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $3,388 | $3,196 | $3,018 |
| Median household income | $111,246 | $98,141 | $80,734 |
| Groundwork market score | 68 | 83 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 297 → 325+9.4% over the period
- Employees, 2023
- 3,328
- Annual payroll, 2023
- $286.1M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 2019 chain locations
- Listings at the U.S. rate for this spending
- 225The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 17
- Amount
- $10.1M
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Snohomish 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 Snohomish County
- Population, 2025 estimate
- 870,656+4.9% since 2020
- Households
- 316,212
- Median age
- 39.7
- Homes lived in by their owners
- 68%
- Vehicles per household
- 2.0
- Land area
- 2,087 sq. mi.
- People per square mile
- 405
- Median household income
- $111,246+28.3% vs. 2015–2019, before inflation
- Average household income
- $142,831
- Median home value
- $696,000
- Jobs located here
- 295,384
- Daytime population
- 731,489Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Snohomish 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 Snohomish 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 Washington
Every Washington market ranked →The highest-scoring counties in Washington for HVAC and plumbing companies, numbered among those based in Washington, with Snohomish County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1King County, WA | 89 | 388 | 4.1 | $8.9M | +3.1% | #11 of 1,707 |
| 2Mason County, WA | 85 | 10 | 3.8 | $7.4M | +7.8% | #23 of 1,707 |
| 3Stevens County, WA | 80 | 7 | 3.6 | $7.4M | +6.6% | #64 of 1,707 |
| 4Grant County, WA | 79 | 12 | 3.4 | $7.8M | +6.3% | #70 of 1,707 |
| 5Whatcom County, WA | 77 | 40 | 4.3 | $6.8M | +3.9% | #88 of 1,707 |
| 6Benton County, WA | 76 | 36 | 4.6 | $6.4M | +6.9% | #99 of 1,707 |
| 7Pierce County, WA | 75 | 160 | 4.6 | $6.9M | +2.5% | #114 of 1,707 |
| 8Kitsap County, WA | 75 | 53 | 4.9 | $6.5M | +2.7% | #117 of 1,707 |
| 9Grays Harbor County, WA | 73 | 9 | 2.9 | $8.6M | +3.0% | #140 of 1,707 |
| 10Thurston County, WA | 70 | 72 | 6.1 | $4.9M | +2.8% | #216 of 1,707 |
| 11Snohomish County, WA | 68 | 201 | 6.4 | $5.3M | +4.9% | #254 of 1,707 |
Other business types in Snohomish 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 trades55
- HVAC and plumbing68
- Electricians57
- Roofing and gutters47
- Lawn, cleaning and pest control58
- Landscaping and lawn care63
- House cleaning46
- Pest control85
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Snohomish County, WA?
There are 201 HVAC and plumbing companies on map listings in Snohomish County as of September 2026. 9 of them (4%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 325 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 9.4% from 2019.
How much do households in Snohomish County, WA spend on home repairs, maintenance and insurance?
About $1.1B a year, or $3,388 per household. That is 12% above the U.S. average (an index of 112, where 100 is the U.S. average). Spread across the 201 HVAC and plumbing companies on map listings, it comes to $5.3M 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 316,212 households in Snohomish County and national spending patterns by income.
How does Snohomish County, WA compare with the U.S. for HVAC and plumbing companies?
Snohomish County has 6.4 HVAC and plumbing companies per 10,000 households, 2% above the U.S. rate of 6.3. Spending per company is $5.3M, 12% above the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Snohomish County would have about 225, against 201 on map listings. There is one business with payroll in the industry for every 973 households, against one for every 1,162 across the U.S. The official count rose 9.4% from 2019 to 2023, against +7.6% for the U.S.
How fast is Snohomish County, WA growing?
Population estimates put Snohomish County at 870,656 people in 2025, up 4.9% since 2020, faster than the U.S. (+3.1%). It has 316,212 households. The median household income in Snohomish County is $111,246 a year, 38% above the U.S. median of $80,734. That rose 28.3% 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. Snohomish County scores 68 for HVAC and plumbing companies (upper middle), #254 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Snohomish 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 Snohomish County
Screening a site or an acquisition in Snohomish 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 Snohomish 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.