| Index | San Carlos I | Texas | National |
| Income per capita | $8,278 | $27,828 | $29,829 |
| Median household income | $0 | $54,727 | $55,322 |
| Median income owner occupied | $0 | $70,980 | $70,586 |
| Median income renter occupied | $0 | $36,330 | $35,192 |
| Median earnings male | $0 | $36,153 | $36,919 |
| Median earnings female | $0 | $25,035 | $26,250 |
| Unemployment rate | 0.0% | 4.1% | 4.7% |
| Poverty level | 51.5% | 16.7% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 100.0% | 100.0% |
| City | Population | Household Income | National Avg. |
| Ranchos Penitas West, TX | 759 | $73,224 | 32.4% |
| Laredo, TX | 260,571 | $51,120 | 7.6% |
| La Presa, TX | 249 | $45,864 | 17.1% |
| Ranchitos East, TX | 393 | $45,648 | 17.5% |
| Pueblo Nuevo, TX | 721 | $33,661 | 39.2% |
| San Carlos I, TX | 309 | $0 | 100.0% |
| City | Population | Household Income | National Avg. |
| Dillon Beach, CA | 309 | $171,477 | 210.0% |
| Esto, FL | 309 | $38,750 | 30.0% |
| Martelle, IA | 309 | $75,000 | 35.6% |
| Bancroft, ID | 309 | $57,917 | 4.7% |
| Hollister, ID | 309 | $41,250 | 25.4% |
| San Carlos I, TX | 309 | $0 | 100.0% |
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