| Index | Kennebunk | Maine | National |
| Cost of living | 120 | 100 | 100 |
| Groceries | 103 | 103 | 100 |
| Health care | 103 | 101 | 100 |
| Housing | 158 | 91 | 100 |
| Transportation | 104 | 103 | 100 |
| Utilities | 107 | 108 | 100 |
| Lifestyle & Entertainment | 108 | 103 | 100 |
| Household Items | 101 | 103 | 100 |
| Education & Childcare | 108 | 106 | 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 | $132,814 | $11,068 | $3,099 | $3,985 |
| Renters | $74,606 | $6,217 | $1,741 | $2,238 |
| State | General Sales Tax | With Max Surtax |
| Maine | 5.5% | 5.5% |
| State | Income Tax (Low) | Income Tax (High) |
| Maine | 5.8% | 7.15% |
| City | Population | Cost of Living Index | National Avg. |
| Alfred, ME | 1,030 | 101 | 0.8% |
| Sanford, ME | 21,841 | 103 | 3.4% |
| Old Orchard Beach, ME | 9,273 | 108 | 7.8% |
| North Berwick, ME | 1,778 | 108 | 8.3% |
| Biddeford, ME | 22,077 | 113 | 12.9% |
| Kennebunk, ME | 5,932 | 120 | 20.4% |
| City | Population | Cost of Living Index | National Avg. |
| West Clarkston-Highland, WA | 5,931 | 101 | 0.6% |
| Mount Arlington, NJ | 5,933 | 134 | 34.2% |
| Saint-Césaire, QC | 5,934 | n/a | |
| Gas City, IN | 5,935 | 85 | 15.0% |
| Hartford City, IN | 5,928 | 79 | 21.0% |
| Kennebunk, ME | 5,932 | 120 | 20.4% |