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Pest control companies in King County, WA
The pest control companies in King County, WA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 86 out of 100: High
Ranked #4 of 699 scored counties
#1 of 16 scored counties in Washington
- Listings
- 75
- 20 chain locations (27%)
- Official establishments
- 44
- −6.4% since 2019
- Household spending a year
- $1.6B
- On lawn care, cleaning and other household services · $1,675 a household
- Spending per listing
- $21M
- 2.1 times the U.S.
- Listings per 10k households
- 0.8
- 43% below the U.S.
- Population, 2025
- 2,344,939
- +3.1% since 2020
See the pest control companies around any address in King County
The site report maps the pest control 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 King 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
The Groundwork market score for pest control companies in King County is 86 (high), #4 of 699 scored counties and #1 of 16 scored counties in Washington. That puts it in the top 10% of counties for pest control companies.
Map listings as of September 2026 show 75 pest control companies in King County. Of those, 20 are chain locations, or 27%, against 20% across the U.S. Per 10,000 households, that is 0.8, 43% below the U.S. rate of 1.4.
Household spending on lawn care, cleaning and other household services in King County comes to about $1.6B a year: $1,675 per household, 18% above the U.S. average. That works out to $21M per company, 2.1 times the U.S. figure of $10.2M. That spending covers all lawn care, cleaning and other household services, which pest control companies share with other businesses in the trade.
Official counts show 44 businesses with payroll classed as exterminating and pest control services in King County in 2023, down 6.4% from 2019. That is one for every 21,388 households, against one for every 7,814 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $90K have gone to businesses classed as exterminating and pest control services in King County. Population estimates show King County grew 3.1% from 2020 to 2025, in step with the U.S. (+3.1%).
How King County compares
The same measures for Washington and the whole U.S. Spending per listing divides a year of household spending on all lawn care, cleaning and other household services by the pest control 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 | King County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 0.8 | 1.0 | 1.4 |
| Spending per listing | $21M | $14.6M | $10.2M |
| Households per official establishment | 21,388 | 13,931 | 7,814 |
| Official establishment growth, 2019–2023 | −6.4% | +15.2% | +10.5% |
| Population growth, 2020–2025 | +3.1% | +3.6% | +3.1% |
| Spending per household on lawn care, cleaning and other household services | $1,675 | $1,474 | $1,414 |
| Median household income | $124,746 | $98,141 | $80,734 |
| Groundwork market score | 86 | 82 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 47 → 44−6.4% over the period
- Employees, 2023
- 531
- Annual payroll, 2023
- $36.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 7520 chain locations
- Listings at the U.S. rate for this spending
- 154The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 2
- Amount
- $90K
SBA-backed loans to businesses classed as exterminating and pest control services in King 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 King County
- Population, 2025 estimate
- 2,344,939+3.1% since 2020
- Households
- 941,054
- Median age
- 38.8
- Homes lived in by their owners
- 55%
- Vehicles per household
- 1.6
- Land area
- 2,116 sq. mi.
- People per square mile
- 1,081
- Median household income
- $124,746+31.4% vs. 2015–2019, before inflation
- Average household income
- $176,807
- Median home value
- $859,900
- Jobs located here
- 1,503,962
- Daytime population
- 2,645,877Residents who don’t work, plus everyone whose job is here
Looking at a specific site in King 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 pest control companies on map listings by name and distance.
Or open the report at the center of King County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardPest control across Washington
Every Washington market ranked →The highest-scoring counties in Washington for pest control companies, numbered among those based in Washington, with King County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1King County, WA | 86 | 75 | 0.8 | $21M | +3.1% | #4 of 699 |
| 2Snohomish County, WA | 85 | 29 | 0.9 | $17M | +4.9% | #7 of 699 |
| 3Kitsap County, WA | 79 | 6 | 0.6 | $26.8M | +2.7% | #29 of 699 |
| 4Pierce County, WA | 76 | 32 | 0.9 | $15.9M | +2.5% | #43 of 699 |
| 5Benton County, WA | 66 | 10 | 1.3 | $10.7M | +6.9% | #148 of 699 |
| 6Skagit County, WA | 64 | 5 | 1.0 | $14.3M | +2.4% | #168 of 699 |
| 7Whatcom County, WA | 64 | 12 | 1.3 | $10.4M | +3.9% | #172 of 699 |
| 8Yakima County, WA | 62 | 6 | 0.7 | $17.7M | +1.0% | #188 of 699 |
| 9Clark County, WA | 60 | 34 | 1.7 | $8.3M | +5.3% | #226 of 699 |
| 10Spokane County, WA | 58 | 27 | 1.2 | $10.5M | +3.2% | #248 of 699 |
Other business types in King 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 pest control companies are in King County, WA?
There are 75 pest control companies on map listings in King County as of September 2026. 20 of them (27%) are chain locations. The listings count pest control companies. Official counts show 44 businesses with payroll classed as exterminating and pest control services in 2023, down 6.4% from 2019.
How much do households in King County, WA spend on lawn care, cleaning and other household services?
About $1.6B a year, or $1,675 per household. That is 18% above the U.S. average (an index of 118, where 100 is the U.S. average). Spread across the 75 pest control companies on map listings, it comes to $21M per company. The spending figure covers all lawn care, cleaning and other household services, not only pest control companies. It is estimated from the incomes of the 941,054 households in King County and national spending patterns by income.
How does King County, WA compare with the U.S. for pest control companies?
King County has 0.8 pest control companies per 10,000 households, 43% below the U.S. rate of 1.4. Spending per company is $21M, 2.1 times the U.S. figure of $10.2M. At the national ratio of pest control companies to household spending, King County would have about 154, against 75 on map listings. There is one business with payroll in the industry for every 21,388 households, against one for every 7,814 across the U.S. The official count fell 6.4% from 2019 to 2023, against +10.5% for the U.S.
How fast is King County, WA growing?
Population estimates put King County at 2,344,939 people in 2025, up 3.1% since 2020, in step with the U.S. (+3.1%). It has 941,054 households. Median household income in King County is $124,746, 55% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 31.4%, 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. King County scores 86 for pest control companies (high), #4 of 699 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in King County. It maps the pest control 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 pest control companies · All 56 business types in King County
Screening a site or an acquisition in King 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 King 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.