| Index | Old Mystic | Connecticut | National |
| Cost of living | 120 | 119 | 100 |
| Goods & Services | 110 | 110 | 100 |
| Groceries | 102 | 104 | 100 |
| Health care | 101 | 111 | 100 |
| Housing | 146 | 139 | 100 |
| Transportation | 99 | 104 | 100 |
| Utilities | 131 | 131 | 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 | $152,602 | $12,717 | $3,560 | $4,579 |
| Renters | $88,921 | $7,410 | $2,075 | $2,668 |
| State | General Sales Tax | With Max Surtax |
| Connecticut | 6.35% | 6.35% |
| State | Income Tax (Low) | Income Tax (High) |
| Connecticut | 3% | 6.99% |
| Item | Old Mystic | National avg. | Difference |
| Haircut | $34.50 | $27.62 | 24.9% |
| Beauty Salon | $60.53 | $51.11 | 18.4% |
| Toothpaste | $4.06 | $4.09 | 0.8% |
| Shampoo | $1.70 | $1.54 | 10.2% |
| Movie | $16.39 | $12.88 | 27.3% |
| Yoga | $24.00 | $19.66 | 22.1% |
| Item | Old Mystic | National avg. | Difference |
| Ground Beef | $7.45 | $7.70 | 3.3% |
| Fried Chicken | $1.54 | $1.66 | 7.4% |
| Milk | $4.79 | $4.73 | 1.2% |
| Potatoes | $5.11 | $5.26 | 2.8% |
| Pizza | $12.58 | $12.76 | 1.4% |
| Beer | $10.78 | $10.55 | 2.2% |
| Item | Old Mystic | National avg. | Difference |
| Optometrist | $118.58 | $140.06 | 15.3% |
| Doctor | $175.33 | $153.82 | 14.0% |
| Dentist | $117.56 | $123.15 | 4.5% |
| Ibuprofen | $12.05 | $11.73 | 2.7% |
| Lipitor | $21.98 | $23.61 | 6.9% |
| Item | Old Mystic | National avg. | Difference |
| Home Price | $452,276.00 | $326,622.00 | 38.5% |
| Avg. Mortgage Payment | $2,220.26 | $2,480.25 | 10.5% |
| Apartment Rent | $2,374.00 | $1,444.00 | 64.4% |
| Item | Old Mystic | National avg. | Difference |
| Gasoline | $2.97 | $3.06 | 2.7% |
| Tire Balancing | $68.09 | $65.21 | 4.4% |
| Item | Old Mystic | National avg. | Difference |
| All Electricity | $327.71 | $220.12 | 48.9% |
| Phone | $199.66 | $195.71 | 2.0% |
| City | Population | Cost of Living Index | National Avg. |
| Fishers Island, NY | 63 | 110 | 10.0% |
| Hopkinton, RI | 628 | 103 | 3.5% |
| Poquonock Bridge, CT | 1,701 | 106 | 5.8% |
| Norwich, CT | 40,661 | 106 | 5.7% |
| Oxoboxo River, CT | 2,855 | 107 | 6.7% |
| Old Mystic, CT | 3,409 | 120 | 20.4% |
| City | Population | Cost of Living Index | National Avg. |
| Long Prairie, MN | 3,409 | 89 | 11.4% |
| Hartford, SD | 3,408 | 92 | 8.4% |
| Winnsboro, TX | 3,408 | 85 | 15.4% |
| Robbinsville, NJ | 3,410 | 134 | 33.9% |
| Lindsborg, KS | 3,411 | 86 | 13.8% |
| Old Mystic, CT | 3,409 | 120 | 20.4% |