| Index | South Monrovia Island | California | National |
| Cost of living | 150 | 141 | 100 |
| Groceries | 110 | 111 | 100 |
| Health care | 114 | 116 | 100 |
| Housing | 231 | 197 | 100 |
| Transportation | 119 | 118 | 100 |
| Utilities | 122 | 119 | 100 |
| Lifestyle & Entertainment | 117 | 120 | 100 |
| Household Items | 111 | 111 | 100 |
| Education & Childcare | 122 | 127 | 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 | $147,450 | $12,288 | $3,440 | $4,424 |
| Renters | $81,147 | $6,762 | $1,893 | $2,435 |
| State | General Sales Tax | With Max Surtax |
| California | 7.25% | 10.5% |
| State | Income Tax (Low) | Income Tax (High) |
| California | 1% | 13.3% |
| City | Population | Cost of Living Index | National Avg. |
| Vernon, CA | 254 | 117 | 16.8% |
| Willowbrook, CA | 25,347 | 136 | 36.0% |
| Florence-Graham, CA | 66,603 | 138 | 38.2% |
| Industry, CA | 269 | 137 | 37.1% |
| Commerce, CA | 13,066 | 139 | 38.8% |
| South Monrovia Island, CA | 6,826 | 150 | 50.4% |
| City | Population | Cost of Living Index | National Avg. |
| Barnesville, GA | 6,826 | 96 | 4.2% |
| Winthrop Harbor, IL | 6,826 | 101 | 1.0% |
| Trinity, NC | 6,824 | 93 | 6.5% |
| Louiseville, QC | 6,831 | n/a | |
| Guadalupe, AZ | 6,820 | 97 | 3.5% |
| South Monrovia Island, CA | 6,826 | 150 | 50.4% |