| Index | Castalian Springs | Tennessee | National |
| Cost of living | 98 | 92 | 100 |
| Groceries | 96 | 98 | 100 |
| Health care | 96 | 97 | 100 |
| Housing | n/a | 80 | 100 |
| Transportation | 96 | 97 | 100 |
| Utilities | 99 | 98 | 100 |
| Lifestyle & Entertainment | 99 | 97 | 100 |
| Household Items | 101 | 98 | 100 |
| Education & Childcare | 100 | 97 | 100 |

| Cost of living index | |
| Groceries index | |
| Health care index | |
| Housing index | |
| Transportation index | |
| Utilities index | |
| Lifestyle index | |
| Household index | |
| Educare index |
| Median Income | Per Year | Per Month | Max Budget (28% DTI) | Max Budget (36% DTI) |
| Owners | $156,260 | $13,022 | $3,646 | $4,688 |
| Renters | $0 | $0 | $0 | $0 |
| State | General Sales Tax | With Max Surtax |
| Tennessee | 7% | 9.75% |
| State | Income Tax (Low) | Income Tax (High) |
| Tennessee | 0% | 0% |
| City | Population | Cost of Living Index | National Avg. |
| Graball, TN | 107 | 98 | 2.2% |
| Bransford, TN | 276 | 98 | 2.2% |
| Hartsville (Trousdale County) , TN | 8,201 | 89 | 10.6% |
| Bethpage, TN | 494 | 93 | 7.2% |
| Portland, TN | 13,381 | 94 | 6.2% |
| Castalian Springs, TN | 405 | 98 | 2.2% |
| City | Population | Cost of Living Index | National Avg. |
| Twin, AL | 405 | 80 | 20.0% |
| Drysdale, AZ | 405 | 87 | 13.0% |
| Carbon, IN | 405 | 81 | 18.6% |
| Clifton, KS | 405 | 75 | 25.1% |
| Pomfret, MD | 405 | 120 | 19.6% |
| Castalian Springs, TN | 405 | 98 | 2.2% |