County profile · Washington
Island County, WA market data
Population, household spending and competition for 56 business types in Island County, each scored against other counties.
- Population, 2025
- 85,657
- −1.5% since 2020
- Households
- 35,972
- Median household income
- $90,551
- +32.0% vs. 2015–2019, before inflation
- Median home value
- $593,300
- Jobs located here
- 16,025
- Highest market score
- 79
- Auto repair and car care, #134 of 2,401 scored counties
A site report maps the competitors on map listings around any address in Island County by name and distance, and the households and spending within reach. 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
An estimated 85,657 people live in Island County, in 35,972 households. Population estimates show Island County declined 1.5% from 2020 to 2025, against +3.1% for the U.S. 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.
Set against the U.S., households in Island County spend the most on child care and other personal services (an index of 124, where 100 is the U.S. average) and the least on clothing, shoes and related services (92).
The highest Groundwork market scores in Island County are for auto repair and car care businesses (79), pizza places (78) and auto repair shops (78). Island County ranks #134 of 2,401 scored counties for auto repair and car care businesses.
Island County is part of the Oak Harbor area. For its number of households, Island County has the most map listings, relative to the U.S., for coffee shops and cafes (49% above the U.S. rate) and the fewest for clothing and shoe stores (71% below the U.S. rate).
All 56 business types in Island County
Highest Groundwork market score first. Each score compares Island County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Auto repair and car care | 79 | #134 of 2,401 | 67 | 18.6 | $630K | 235 | 24 |
| Pizza | 78 | #112 of 2,090 | 17 | 4.7 | $8.9M | 174 | 38 |
| Auto repair shops | 78 | #139 of 2,378 | 34 | 9.5 | $1.2M | 279 | 21 |
| Fast food and sandwich shops | 78 | #155 of 2,222 | 26 | 7.2 | $5.8M | 190 | 38 |
| Convenience stores | 78 | #208 of 2,261 | 8 | 2.2 | $28.3M | 359 | 4 |
| Collision repair and body shops | 76 | #107 of 1,327 | 5 | 1.4 | $8.4M | 274 | 7 |
| Child care and preschools | 75 | #155 of 1,611 | 19 | 5.3 | $1.4M | 136 | 12 |
| Spas and skin care | 74 | #136 of 1,769 | 21 | 5.8 | $1.8M | 208 | 4 |
| Primary care and pediatrics | 74 | #160 of 1,656 | 9 | 2.5 | $5.4M | 304 | 24 |
| Gas stations | 74 | #278 of 2,358 | 21 | 5.8 | $5.1M | 213 | 16 |
| Funeral homes | 73 | #172 of 1,472 | 5 | 1.4 | $1.3M | 186 | Under 3 |
| Tire shops | 73 | #198 of 1,530 | 7 | 1.9 | $6M | 241 | Under 3 |
| Car washes and detailing | 71 | #196 of 1,451 | 10 | 2.8 | $4.2M | 168 | Under 3 |
| Clothing, shoes and laundry | 71 | #331 of 2,210 | 27 | 7.5 | $2.5M | 285 | 10 |
| Clothing and shoe stores | 71 | #335 of 2,087 | 17 | 4.7 | $4M | 314 | 10 |
| Barbershops | 70 | #218 of 1,356 | 10 | 2.8 | $3.8M | 203 | Under 3 |
| Insurance agencies | 69 | #487 of 2,272 | 23 | 6.4 | $3.3M | 261 | 20 |
| Grocery and convenience stores | 68 | #489 of 2,402 | 52 | 14.5 | $4.4M | 128 | 20 |
| HVAC and plumbing | 67 | #265 of 1,707 | 11 | 3.1 | $9.6M | 203 | 29 |
| Hair salons | 66 | #406 of 2,339 | 50 | 13.9 | $765K | 178 | 18 |
| Gyms | 65 | #343 of 1,792 | 22 | 6.1 | $1.9M | 148 | 11 |
| Martial arts and dance studios | 64 | #270 of 1,334 | 12 | 3.3 | $3.5M | 175 | 10 |
| Restaurants and cafes | 64 | #593 of 2,405 | 291 | 80.9 | $518K | 140 | 140 |
| Sit-down restaurants | 63 | #599 of 2,405 | 131 | 36.4 | $1.1M | 173 | 66 |
| Dentists and orthodontists | 62 | #498 of 1,886 | 27 | 7.5 | $1.8M | 183 | 24 |
| Salons, barbers and spas | 62 | #551 of 2,385 | 99 | 27.5 | $386K | 182 | 32 |
| Gyms, studios and classes | 60 | #574 of 2,088 | 45 | 12.5 | $941K | 142 | 21 |
| Doctors, dentists and clinics | 60 | #739 of 2,394 | 165 | 45.9 | $295K | 193 | 77 |
| Mortgage brokers and lenders | 57 | #297 of 887 | 13 | 3.6 | Index only | 132 | 5 |
| Home repair trades | 57 | #684 of 2,057 | 29 | 8.1 | $3.7M | 150 | 76 |
| Chiropractors | 56 | #560 of 1,490 | 16 | 4.4 | $3M | 127 | 11 |
| Veterinarians | 55 | #609 of 1,485 | 15 | 4.2 | $2.5M | 92 | 11 |
| Nail salons | 54 | #552 of 1,328 | 17 | 4.7 | $2.3M | 135 | 9 |
| Roofing and gutters | 51 | #565 of 1,177 | 7 | 1.9 | $15.1M | 179 | 16 |
| Pet grooming and boarding | 51 | #705 of 1,461 | 16 | 4.4 | $2.3M | 92 | 10 |
| Bakeries and dessert shops | 51 | #877 of 1,889 | 25 | 6.9 | $6M | 145 | 35 |
| Pest control | 50 | #347 of 699 | 5 | 1.4 | $9.8M | 96 | 4 |
| Yoga, Pilates and fitness studios | 50 | #384 of 777 | 11 | 3.1 | $3.9M | 95 | 11 |
| Pet businesses | 49 | #1,129 of 2,200 | 46 | 12.8 | $815K | 93 | 28 |
| House cleaning | 47 | #476 of 847 | 7 | 1.9 | $7M | 110 | 21 |
| Grocery stores | 46 | #1,149 of 2,070 | 29 | 8.1 | $7.8M | 84 | 16 |
| Property management | 43 | #578 of 910 | 13 | 3.6 | Index only | 93 | 20 |
| Electricians | 40 | #817 of 1,160 | 11 | 3.1 | $9.6M | 80 | 31 |
| Physical therapy | 39 | #1,009 of 1,422 | 25 | 6.9 | $1.9M | 81 | 15 |
| Pet stores | 37 | #681 of 974 | 10 | 2.8 | $3.7M | 83 | 7 |
| Real estate agents and brokers | 37 | #1,736 of 2,176 | 103 | 28.6 | Index only | 119 | 68 |
| Landscaping and lawn care | 35 | #1,140 of 1,493 | 21 | 5.8 | $2.3M | 80 | 68 |
| Lawn, cleaning and pest control | 35 | #1,407 of 1,771 | 33 | 9.2 | $1.5M | 89 | 93 |
| Real estate | 35 | #1,864 of 2,229 | 133 | 37.0 | Index only | 116 | 101 |
| Coffee shops and cafes | 28 | #1,820 of 2,063 | 59 | 16.4 | $2.6M | 69 | 35 |
| Home inspectors | Not scored | Not scored | 4 | 1.1 | Index only | 64 | Under 3 |
| Optometrists and eye care | Not scored | Not scored | 4 | 1.1 | $12.2M | 388 | 3 |
| Laundromats | Not scored | Not scored | 3 | 0.8 | $22.6M | 180 | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 1 | 0.3 | $42.2M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Island County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $42.2M | $1,174 | 123 |
| Gasoline and other fuels | $106.8M | $2,970 | 114 |
| Food away from home | $150.6M | $4,187 | 103 |
| Groceries | $226.2M | $6,289 | 100 |
| Personal care products and services | $38.3M | $1,064 | 106 |
| Child care and other personal services | $25.9M | $719 | 124 |
| Memberships, classes and admissions | $42.4M | $1,177 | 120 |
| Medical and dental services | $48.7M | $1,353 | 105 |
| Pets | $37.5M | $1,042 | 115 |
| Clothing, shoes and related services | $67.7M | $1,883 | 92 |
| Vehicle insurance | $75.3M | $2,093 | 107 |
| Home repairs, maintenance and insurance | $106M | $2,946 | 98 |
| Lawn care, cleaning and other household services | $49.2M | $1,368 | 97 |
| Rent and homeowner costs | $670.9M | $18,650 | 112 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
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 competitors on map listings by name and distance, for any of the 56 business types.
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 cardRelated markets
Nearest counties in Washington 8
- Jefferson County, WA33,577 people
- Skagit County, WA131,328 people
- Snohomish County, WA844,430 people
- San Juan County, WA18,478 people
- Clallam County, WA77,813 people
- Kitsap County, WA277,881 people
- Whatcom County, WA230,503 people
- King County, WA2,287,171 people
Questions
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. Against the 2015–2019 survey, median household income rose 32.0%, before inflation.
How much do households in Island County, WA spend?
Households in Island County spend about $670.9M a year on rent and homeowner costs, $226.2M on groceries and $150.6M on food away from home. Relative to the U.S., household spending in Island County runs highest on child care and other personal services (an index of 124, where 100 is the U.S. average) and lowest on clothing, shoes and related services (92).
Which business types have the highest market scores in Island County, WA?
Of the business types scored in Island County, auto repair and car care businesses (79), pizza places (78) and auto repair shops (78) have the highest Groundwork market scores. For auto repair and car care businesses, that ranks #134 of 2,401 scored counties.
How does Island County, WA compare with the U.S.?
Median household income in Island County is $90,551, 12% above the U.S. median of $80,734. The population fell 1.5% from 2020 to 2025, against +3.1% for the U.S. The median home value is $593,300, against $332,700 for the U.S. Against the U.S., map listings per household run highest for coffee shops and cafes (49% above the U.S. rate) and lowest for clothing and shoe stores (71% below the U.S. rate).
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. 50 of the 56 business types have a score in Island County, each ranked against other 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 competitors 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.
All markets in Washington · Every U.S. market · How we measure
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.