| Index | St. Helena | California | National | 
| Cost of living | 247 | 140 | 100 | 
| Goods & Services | 114 | 111 | 100 | 
| Groceries | 117 | 112 | 100 | 
| Health care | 121 | 109 | 100 | 
| Housing | 542 | 196 | 100 | 
| Transportation | 129 | 126 | 100 | 
| Utilities | 134 | 127 | 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 | $132,611 | $11,051 | $3,094 | $3,979 | 
| Renters | $60,379 | $5,032 | $1,409 | $1,812 | 
| State | General Sales Tax | With Max Surtax | 
| California | 7.25% | 10.5% | 
| State | Income Tax (Low) | Income Tax (High) | 
| California | 1% | 13.3% | 
| Item | St. Helena | National avg. | Difference | 
| Haircut | $25.00 | $24.26 | 3.0% | 
| Beauty Salon | $76.00 | $45.56 | 66.8% | 
| Toothpaste | $3.64 | $3.70 | 1.7% | 
| Shampoo | $1.45 | $1.28 | 13.5% | 
| Movie | $16.46 | $12.13 | 35.7% | 
| Bowling | $27.22 | $18.00 | 51.2% | 
| Item | St. Helena | National avg. | Difference | 
| Ground Beef | $5.70 | $5.84 | 2.3% | 
| Fried Chicken | $3.43 | $1.57 | 118.2% | 
| Milk | $4.91 | $4.67 | 5.1% | 
| Potatoes | $4.87 | $4.93 | 1.3% | 
| Pizza | $13.49 | $12.09 | 11.6% | 
| Beer | $11.18 | $10.41 | 7.4% | 
| Item | St. Helena | National avg. | Difference | 
| Optometrist | $137.40 | $125.68 | 9.3% | 
| Doctor | $110.00 | $135.78 | 19.0% | 
| Dentist | $118.27 | $113.29 | 4.4% | 
| Ibuprofen | $11.76 | $10.65 | 10.4% | 
| Lipitor | $508.17 | $468.60 | 8.4% | 
| Item | St. Helena | National avg. | Difference | 
| Home Price | $1,281,500.00 | $184,700.00 | 593.8% | 
| Avg. Mortgage Payment | $6,553.90 | $2,346.69 | 179.3% | 
| Apartment Rent | $1,779.00 | $949.00 | 87.5% | 
| Item | St. Helena | National avg. | Difference | 
| Gasoline | $4.60 | $3.46 | 33.0% | 
| Tire Balancing | $60.97 | $59.92 | 1.7% | 
| Item | St. Helena | National avg. | Difference | 
| All Electricity | $182.51 | $193.99 | 5.9% | 
| Phone | $180.31 | $192.25 | 6.2% | 
| City | Population | Cost of Living Index | National Avg. | 
| Oakville, CA | 74 | 120 | 20.0% | 
| Moskowite Corner, CA | 69 | 112 | 11.6% | 
| Roseland, CA | 5,859 | 135 | 34.5% | 
| Rutherford, CA | 100 | 150 | 50.0% | 
| Yountville, CA | 3,001 | 154 | 53.7% | 
| St. Helena, CA | 6,049 | 247 | 146.6% | 
| City | Population | Cost of Living Index | National Avg. | 
| Amqui, QC | 6,049 | n/a | |
| Silver Lakes, CA | 6,050 | 122 | 22.1% | 
| Manchester, WA | 6,050 | 133 | 32.7% | 
| Willows, CA | 6,053 | 110 | 9.9% | 
| Metropolis, IL | 6,053 | 86 | 13.9% | 
| St. Helena, CA | 6,049 | 247 | 146.6% |