Real estate · County · Washington
Real estate businesses in Island County, WA
How Island County, WA compares with other counties and the U.S. for real estate businesses: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 35 out of 100: Lower middle
Ranked #1,864 of 2,229 scored counties
#35 of 35 scored counties in Washington
- Listings
- 133
- 5 chain locations (4%)
- Official establishments
- 101
- +18.8% since 2019
- Household spending a year
- $670.9M
- On rent and homeowner costs · $18,650 a household
- Housing spending per listing (U.S. = 100)
- 116
- 16% above the U.S.
- Listings per 10k households
- 37.0
- 4% below the U.S.
- Population, 2025
- 85,657
- −1.5% since 2020
See the real estate businesses around any address in Island County
The site report maps the real estate businesses 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 Island 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
For real estate businesses, Island County has a Groundwork market score of 35 (lower middle): #1,864 of 2,229 scored counties and #35 of 35 scored counties in Washington. That puts it in the bottom quarter of counties.
As of September 2026, map listings count 133 real estate businesses in Island County. Of those, 5 are chain locations, or 4%, against 6% across the U.S. That is 37.0 per 10,000 households, 4% below the U.S. rate of 38.5.
Households in Island County spend about $670.9M a year on rent and homeowner costs, or $18,650 per household, 12% above the U.S. average. Housing spending per office is 16% above the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money real estate businesses take in.
The official count of businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in Island County was 101 in 2023, up 18.8% from 2019. That is one for every 356 households, against one for every 414 across the U.S. Since fiscal 2022, 3 SBA-backed loans worth $529K have gone to businesses classed as real estate agents, property managers, mortgage lenders and inspectors in Island County. Population estimates put the population change in Island County from 2020 to 2025 at −1.5%, against +3.1% for the U.S.
How Island County compares
The same measures for Washington and the whole U.S. Housing spending per listing divides all rent and homeowner costs by the listings counted: a measure of housing demand for each business, not money any of them take in, so it is shown against the U.S. (100) only. Households per establishment divides households by the official count.
| Measure | Island County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 37.0 | 42.1 | 38.5 |
| Housing spending per listing (U.S. = 100) | 116 | 108 | 100 |
| Households per official establishment | 356 | 317 | 414 |
| Official establishment growth, 2019–2023 | +18.8% | +13.5% | +15.8% |
| Population growth, 2020–2025 | −1.5% | +3.6% | +3.1% |
| Spending per household on rent and homeowner costs | $18,650 | $19,779 | $16,661 |
| Median household income | $90,551 | $98,141 | $80,734 |
| Groundwork market score | 35 | 56 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 85 → 101+18.8% over the period
- Employees, 2023
- 212
- Annual payroll, 2023
- $13.3M
- One-person businesses, 2023
- 440Businesses with no payroll
- Map listings, September 2026
- 1335 chain locations
- Listings at the U.S. rate for this spending
- 155The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 3
- Amount
- $529K
SBA-backed loans to businesses classed as real estate agents, property managers, mortgage lenders and inspectors in Island 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 Island County
- Population, 2025 estimate
- 85,657−1.5% since 2020
- Households
- 35,972
- Median age
- 46.9
- Homes lived in by their owners
- 75%
- Vehicles per household
- 2.1
- Land area
- 209 sq. mi.
- People per square mile
- 416
- Median household income
- $90,551+32.0% vs. 2015–2019, before inflation
- Average household income
- $113,035
- Median home value
- $593,300
- Jobs located here
- 16,025
- Daytime population
- 70,254Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Island 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 real estate businesses on map listings by name and distance.
Or open the report at the center of Island County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardReal estate across Washington
Every Washington market ranked →The highest-scoring counties in Washington for real estate businesses, numbered among those based in Washington, with Island County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Lincoln County, WA | 87 | 6 | 12.4 | 314 | +9.7% | #2 of 2,229 |
| 2Douglas County, WA | 78 | 15 | 9.4 | 451 | +8.0% | #46 of 2,229 |
| 3Franklin County, WA | 77 | 26 | 8.7 | 491 | +5.6% | #64 of 2,229 |
| 4Skamania County, WA | 77 | 7 | 13.9 | 312 | +5.2% | #69 of 2,229 |
| 5Asotin County, WA | 75 | 12 | 12.6 | 317 | +1.0% | #100 of 2,229 |
| 6Klickitat County, WA | 73 | 14 | 14.2 | 285 | +6.6% | #140 of 2,229 |
| 7Pacific County, WA | 69 | 17 | 15.5 | 249 | +3.6% | #230 of 2,229 |
| 8Stevens County, WA | 66 | 40 | 20.6 | 190 | +6.6% | #348 of 2,229 |
| 9Adams County, WA | 66 | 15 | 23.9 | 161 | +4.3% | #355 of 2,229 |
| 10Grant County, WA | 62 | 77 | 21.8 | 181 | +6.3% | #505 of 2,229 |
| 35Island County, WA | 35 | 133 | 37.0 | 116 | −1.5% | #1,864 of 2,229 |
Other business types in Island 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 real estate businesses are in Island County, WA?
Island County has 133 real estate businesses on map listings as of September 2026. 5 of them (4%) are chain locations. The listings count real estate agents and brokers, property managers, mortgage brokers and lenders, and home inspectors. Official counts show 101 businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in 2023, up 18.8% from 2019. Official counts list 440 one-person businesses without payroll.
How much do households in Island County, WA spend on rent and homeowner costs?
About $670.9M a year, or $18,650 per household. That is 12% above the U.S. average (an index of 112, where 100 is the U.S. average). For the 133 real estate businesses on map listings, housing spending per office is 16% above the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money real estate businesses take in. It is estimated from the incomes of the 35,972 households in Island County and national spending patterns by income.
How does Island County, WA compare with the U.S. for real estate businesses?
Island County has 37.0 real estate businesses per 10,000 households, 4% below the U.S. rate of 38.5. The index of housing spending per office is 116, where 100 is the U.S. At the national ratio of real estate businesses to household spending, Island County would have about 155, against 133 on map listings. There is one business with payroll in the industry for every 356 households, against one for every 414 across the U.S. The official count rose 18.8% from 2019 to 2023, against +15.8% for the U.S.
How fast is Island County, WA growing?
Population estimates put Island County at 85,657 people in 2025, down 1.5% since 2020, against +3.1% for the U.S. It has 35,972 households. The median household income in Island County is $90,551 a year, 12% above the U.S. median of $80,734. That rose 32.0% 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. Island County scores 35 for real estate businesses (lower middle), #1,864 of 2,229 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Island County. It maps the real estate businesses 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 real estate businesses · All 56 business types in Island County
Screening a site or an acquisition in Island 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 Island 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.