County profile · Hawaii
Kauai County, HI market data
Population, household spending and competition for 56 business types in Kauai County, each scored against other counties.
- Population, 2025
- 73,400
- +0.3% since 2020
- Households
- 23,632
- Median household income
- $97,668
- +16.9% vs. 2015–2019, before inflation
- Median home value
- $873,200
- Jobs located here
- 28,378
- Highest market score
- 85
- Pet businesses, #23 of 2,200 scored counties
A site report maps the competitors on map listings around any address in Kauai County by name and distance, and the households and spending within reach. Or open the report at the center of Kauai 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 73,400 people live in Kauai County, in 23,632 households. Population estimates put the population change in Kauai County from 2020 to 2025 at +0.3%, slower than the U.S. (+3.1%). The median household income in Kauai County is $97,668 a year, 21% above the U.S. median of $80,734. That rose 16.9% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Kauai County spend the most on child care and other personal services (an index of 138, where 100 is the U.S. average) and the least on clothing, shoes and related services (97).
The highest Groundwork market scores in Kauai County are for pet businesses (85), veterinarians (82) and funeral homes (77). Kauai County ranks #23 of 2,200 scored counties for pet businesses.
Kauai County is part of the Kapaa area. For its number of households, Kauai County has the most map listings, relative to the U.S., for yoga, Pilates and fitness studios (4.8 times the U.S. rate) and the fewest for insurance agencies (56% below the U.S. rate).
All 56 business types in Kauai County
Highest Groundwork market score first. Each score compares Kauai 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 |
|---|---|---|---|---|---|---|---|
| Pet businesses | 85 | #23 of 2,200 | 14 | 5.9 | $1.9M | 211 | 4 |
| Veterinarians | 82 | #59 of 1,485 | 5 | 2.1 | $5.2M | 191 | 4 |
| Funeral homes | 77 | #107 of 1,472 | 5 | 2.1 | $993K | 146 | Under 3 |
| Barbershops | 74 | #148 of 1,356 | 8 | 3.4 | $3.3M | 174 | Under 3 |
| Chiropractors | 74 | #159 of 1,490 | 10 | 4.2 | $3.3M | 139 | 4 |
| Gas stations | 74 | #294 of 2,358 | 25 | 10.6 | $3M | 127 | 19 |
| Collision repair and body shops | 73 | #151 of 1,327 | 6 | 2.5 | $5.1M | 165 | 6 |
| Auto repair and car care | 72 | #292 of 2,401 | 73 | 30.9 | $419K | 156 | 34 |
| Auto repair shops | 70 | #335 of 2,378 | 42 | 17.8 | $728K | 164 | 27 |
| Insurance agencies | 68 | #515 of 2,272 | 16 | 6.8 | $3.3M | 266 | 19 |
| Car washes and detailing | 64 | #356 of 1,451 | 9 | 3.8 | $3.4M | 135 | 5 |
| Child care and preschools | 64 | #416 of 1,611 | 13 | 5.5 | $1.5M | 146 | 17 |
| Roofing and gutters | 60 | #355 of 1,177 | 5 | 2.1 | $14.6M | 173 | 7 |
| Hair salons | 58 | #788 of 2,339 | 58 | 24.5 | $453K | 105 | 11 |
| Gyms | 55 | #741 of 1,792 | 30 | 12.7 | $1M | 79 | 6 |
| Nail salons | 54 | #567 of 1,328 | 15 | 6.3 | $1.8M | 105 | Under 3 |
| Optometrists and eye care | 54 | #576 of 1,302 | 9 | 3.8 | $3.7M | 118 | 6 |
| Landscaping and lawn care | 53 | #623 of 1,493 | 8 | 3.4 | $4.2M | 145 | 58 |
| Physical therapy | 53 | #634 of 1,422 | 11 | 4.7 | $3M | 126 | 13 |
| Home repair trades | 51 | #976 of 2,057 | 28 | 11.8 | $2.6M | 107 | 59 |
| Fast food and sandwich shops | 50 | #1,125 of 2,222 | 31 | 13.1 | $3.4M | 110 | 91 |
| Convenience stores | 50 | #1,128 of 2,261 | 27 | 11.4 | $5.6M | 72 | 9 |
| Primary care and pediatrics | 49 | #875 of 1,656 | 20 | 8.5 | $1.7M | 93 | 34 |
| HVAC and plumbing | 49 | #892 of 1,707 | 16 | 6.8 | $4.6M | 96 | 28 |
| Doctors, dentists and clinics | 48 | #1,266 of 2,394 | 152 | 64.3 | $219K | 144 | 89 |
| Pizza | 46 | #1,177 of 2,090 | 22 | 9.3 | $4.7M | 93 | 91 |
| Electricians | 45 | #701 of 1,160 | 7 | 3.0 | $10.4M | 87 | 24 |
| Salons, barbers and spas | 44 | #1,536 of 2,385 | 132 | 55.9 | $199K | 94 | 21 |
| Lawn, cleaning and pest control | 43 | #1,114 of 1,771 | 20 | 8.5 | $1.7M | 101 | 97 |
| Mortgage brokers and lenders | 42 | #593 of 887 | 15 | 6.3 | Index only | 78 | Under 3 |
| Yoga, Pilates and fitness studios | 41 | #548 of 777 | 27 | 11.4 | $1.1M | 28 | 6 |
| Pest control | 38 | #514 of 699 | 5 | 2.1 | $6.8M | 66 | 4 |
| Dentists and orthodontists | 37 | #1,413 of 1,886 | 34 | 14.4 | $979K | 100 | 29 |
| Martial arts and dance studios | 36 | #1,020 of 1,334 | 20 | 8.5 | $1.5M | 76 | 20 |
| Laundromats | 33 | #581 of 785 | 6 | 2.5 | $7.8M | 63 | Under 3 |
| Real estate agents and brokers | 32 | #1,974 of 2,176 | 107 | 45.3 | Index only | 78 | 51 |
| Grocery and convenience stores | 31 | #1,934 of 2,402 | 89 | 37.7 | $1.7M | 51 | 28 |
| Real estate | 30 | #2,076 of 2,229 | 136 | 57.5 | Index only | 78 | 95 |
| House cleaning | 29 | #759 of 847 | 7 | 3.0 | $4.8M | 76 | 35 |
| Property management | 29 | #795 of 910 | 14 | 5.9 | Index only | 59 | 33 |
| Gyms, studios and classes | 29 | #1,828 of 2,088 | 77 | 32.6 | $401K | 61 | 26 |
| Spas and skin care | 28 | #1,577 of 1,769 | 49 | 20.7 | $536K | 61 | 10 |
| Grocery stores | 27 | #1,738 of 2,070 | 42 | 17.8 | $3.6M | 39 | 19 |
| Sit-down restaurants | 27 | #2,168 of 2,405 | 353 | 149.4 | $294K | 44 | 86 |
| Restaurants and cafes | 26 | #2,174 of 2,405 | 631 | 267.0 | $165K | 44 | 216 |
| Bakeries and dessert shops | 25 | #1,749 of 1,889 | 73 | 30.9 | $1.4M | 34 | 47 |
| Coffee shops and cafes | 25 | #1,896 of 2,063 | 94 | 39.8 | $1.1M | 30 | 39 |
| Clothing and shoe stores | 23 | #1,897 of 2,087 | 94 | 39.8 | $500K | 39 | 78 |
| Clothing, shoes and laundry | 23 | #2,026 of 2,210 | 132 | 55.9 | $356K | 40 | 82 |
| Pet stores | Not scored | Not scored | 4 | 1.7 | $6.5M | 144 | Under 3 |
| Tire shops | Not scored | Not scored | 3 | 1.3 | $10.2M | 407 | Under 3 |
| Dry cleaners | Not scored | Not scored | 2 | 0.8 | $23.5M | Too few | 4 |
| Oil change and quick lube | Not scored | Not scored | 2 | 0.8 | $15.3M | Too few | Under 3 |
| Pet grooming and boarding | Not scored | Not scored | 2 | 0.8 | $13M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 0.4 | $33.3M | Too few | 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Kauai 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 | $30.6M | $1,294 | 135 |
| Gasoline and other fuels | $76M | $3,215 | 124 |
| Food away from home | $103.9M | $4,396 | 108 |
| Groceries | $152.5M | $6,451 | 102 |
| Personal care products and services | $26.3M | $1,112 | 111 |
| Child care and other personal services | $19M | $804 | 138 |
| Memberships, classes and admissions | $30.9M | $1,306 | 133 |
| Medical and dental services | $33.3M | $1,409 | 109 |
| Pets | $26M | $1,100 | 121 |
| Clothing, shoes and related services | $47M | $1,988 | 97 |
| Vehicle insurance | $53.4M | $2,259 | 115 |
| Home repairs, maintenance and insurance | $73M | $3,091 | 102 |
| Lawn care, cleaning and other household services | $33.9M | $1,435 | 102 |
| Rent and homeowner costs | $457.4M | $19,356 | 116 |
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 Kauai County
- Population, 2025 estimate
- 73,400+0.3% since 2020
- Households
- 23,632
- Median age
- 43.9
- Homes lived in by their owners
- 69%
- Vehicles per household
- 2.3
- Land area
- 620 sq. mi.
- People per square mile
- 119
- Median household income
- $97,668+16.9% vs. 2015–2019, before inflation
- Average household income
- $126,466
- Median home value
- $873,200
- Jobs located here
- 28,378
- Daytime population
- 63,469Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Kauai 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 Kauai County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
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- Hawaii County, HI205,769 people
Questions
How fast is Kauai County, HI growing?
Population estimates put Kauai County at 73,400 people in 2025, up 0.3% since 2020, slower than the U.S. (+3.1%). It has 23,632 households. Against the 2015–2019 survey, median household income rose 16.9%, before inflation.
How much do households in Kauai County, HI spend?
Households in Kauai County spend about $457.4M a year on rent and homeowner costs, $152.5M on groceries and $103.9M on food away from home. Relative to the U.S., household spending in Kauai County runs highest on child care and other personal services (an index of 138, where 100 is the U.S. average) and lowest on clothing, shoes and related services (97).
Which business types have the highest market scores in Kauai County, HI?
Of the business types scored in Kauai County, pet businesses (85), veterinarians (82) and funeral homes (77) have the highest Groundwork market scores. For pet businesses, that ranks #23 of 2,200 scored counties.
How does Kauai County, HI compare with the U.S.?
Median household income in Kauai County is $97,668, 21% above the U.S. median of $80,734. The population rose 0.3% from 2020 to 2025, against +3.1% for the U.S. The median home value is $873,200, against $332,700 for the U.S. Against the U.S., map listings per household run highest for yoga, Pilates and fitness studios (4.8 times the U.S. rate) and lowest for insurance agencies (56% 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. 49 of the 56 business types have a score in Kauai 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 Kauai 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.
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Screening a site or an acquisition in Kauai 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 Kauai 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.