| Index | Lake San Marcos | California | National |
| Income per capita | $54,004 | $31,458 | $29,829 |
| Median household income | $76,958 | $63,783 | $55,322 |
| Median income owner occupied | $75,359 | $86,568 | $70,586 |
| Median income renter occupied | $90,729 | $43,419 | $35,192 |
| Median earnings male | $76,393 | $36,599 | $36,919 |
| Median earnings female | $31,715 | $27,020 | $26,250 |
| Unemployment rate | 3.1% | 5.5% | 4.7% |
| Poverty level | 6.0% | 15.8% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 9.9% | 9.9% |
| Manufacturing sector | 20.5% | 20.5% |
| Financial & insurance services | 5.0% | 5.0% |
| Wholesale & retail services | 5.6% | 5.6% |
| Public administration | 5.8% | 5.8% |
| Transportation, warehousing & utilities | 3.6% | 3.6% |
| Education, health & social services | 7.9% | 7.9% |
| Other | 40.7% | 40.7% |
| City | Population | Household Income | National Avg. |
| Fairbanks Ranch, CA | 2,929 | $221,372 | 300.2% |
| Rancho Santa Fe, CA | 2,657 | $174,280 | 215.0% |
| Del Mar, CA | 4,331 | $161,705 | 192.3% |
| Encinitas, CA | 62,967 | $120,488 | 117.8% |
| Hidden Meadows, CA | 3,675 | $115,658 | 109.1% |
| Lake San Marcos, CA | 3,957 | $76,958 | 39.1% |
| City | Population | Household Income | National Avg. |
| Southgate, KY | 3,957 | $60,167 | 8.8% |
| Level Green, PA | 3,957 | $72,500 | 31.1% |
| Grand Mound, WA | 3,957 | $51,765 | 6.4% |
| Ashland, MO | 3,956 | $78,085 | 41.1% |
| Weaverville, NC | 3,956 | $71,806 | 29.8% |
| Lake San Marcos, CA | 3,957 | $76,958 | 39.1% |
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