In 2026, the conventional loan limit in San-Marcos, county of San Diego, CA, is $879,750, while the FHA limit for a single-family home is $879,750.
Use the Lendersa® Conventional loan calculator to evaluate today's top rates for Conventional, FHA, and USDA loans. Assess the income, credit, reserves, and documentation necessary for qualification. Our advanced mortgage calculator lets you see Conforming Conventional, USDA, FHA, and VA loans side by side, helping you pick the best program for your financial needs in CA.
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| Loan Type | Loan Limit | Down Payment |
| Conventional Conforming | $879,750 | 3% |
| USDA | $615,000 | 0% |
| FHA | $879,750 | 3.5% |
This applies to zip codes: 92078
The aim of Lendersa® is to connect you with the best possible Conventional, USDA, or FHA loan swiftly and easily. Choose one of three starting points to match with lenders and appropriate loan programs.
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