| Index | Kapaau | Hawaii | National |
| Cost of living | 156 | 173 | 100 |
| Goods & Services | 134 | 130 | 100 |
| Groceries | 157 | 137 | 100 |
| Health care | 129 | 126 | 100 |
| Housing | 169 | 250 | 100 |
| Transportation | 151 | 143 | 100 |
| Utilities | 209 | 180 | 100 |


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| Cost of living index | |
| Goods & Services index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $66,250 | $5,521 | $1,546 | $1,988 |
| Renters | $0 | $0 | $0 | $0 |
| State | General Sales Tax | With Max Surtax |
| Hawaii | 4% | 4.712% |
| State | Income Tax (Low) | Income Tax (High) |
| Hawaii | 1.4% | 11% |
| Item | Kapaau | National avg. | Difference |
| Haircut | $12.17 | $24.26 | 49.8% |
| Beauty Salon | $31.47 | $45.56 | 30.9% |
| Toothpaste | $4.08 | $3.70 | 10.3% |
| Shampoo | $1.72 | $1.28 | 34.5% |
| Movie | $10.04 | $12.13 | 17.2% |
| Bowling | $13.87 | $18.00 | 22.9% |
| Item | Kapaau | National avg. | Difference |
| Ground Beef | $4.25 | $5.84 | 27.2% |
| Fried Chicken | $2.19 | $1.57 | 39.1% |
| Milk | $3.21 | $4.67 | 31.4% |
| Potatoes | $4.25 | $4.93 | 13.8% |
| Pizza | $12.30 | $12.09 | 1.7% |
| Beer | $7.78 | $10.41 | 25.3% |
| Item | Kapaau | National avg. | Difference |
| Optometrist | $136.85 | $125.68 | 8.9% |
| Doctor | $133.68 | $135.78 | 1.5% |
| Dentist | $112.79 | $113.29 | 0.4% |
| Ibuprofen | $13.01 | $10.65 | 22.2% |
| Lipitor | $398.63 | $468.60 | 14.9% |
| Item | Kapaau | National avg. | Difference |
| Home Price | $353,400.00 | $184,700.00 | 91.3% |
| Avg. Mortgage Payment | $2,014.49 | $2,346.69 | 14.2% |
| Apartment Rent | $1,116.00 | $949.00 | 17.6% |
| Item | Kapaau | National avg. | Difference |
| Gasoline | $3.16 | $3.46 | 8.6% |
| Tire Balancing | $72.96 | $59.92 | 21.8% |
| Item | Kapaau | National avg. | Difference |
| All Electricity | $431.66 | $193.99 | 122.5% |
| Phone | $39.39 | $192.25 | 79.5% |
| City | Population | Cost of Living Index | National Avg. |
| Halaula, HI | 644 | 157 | 57.3% |
| Waimea CDP (Kauai County), HI | 1,804 | 161 | 60.5% |
| Hawi, HI | 1,325 | 173 | 72.9% |
| Waimea, HI | 10,969 | 175 | 74.9% |
| Kapaau, HI | 1,927 | 156 | 56.5% |
| City | Population | Cost of Living Index | National Avg. |
| Jeffersonville, KY | 1,927 | 86 | 13.7% |
| Glen Alpine, NC | 1,927 | 92 | 8.1% |
| Lake Ripley, WI | 1,927 | 113 | 12.8% |
| Chapleau, ON | 1,927 | n/a | |
| Port Dickinson, NY | 1,928 | 87 | 12.7% |
| Kapaau, HI | 1,927 | 156 | 56.5% |