San Diego County, California — 2026 Loan Limits & Market Data

San Diego County is one of the most populous counties in the United States with a population of approximately 3,298,799 residents spread across 4,204 square miles. The county is a suburban area with a moderate population density of 785 residents per square mile, which shapes both the local housing market and the types of properties available to buyers.

As a designated high-cost area, San Diego County has elevated 2026 conforming loan limits of $1,104,000 for a single-family home, higher than the national baseline of $832,750. FHA borrowers can access loans up to $1,104,000. These higher limits reflect the area's elevated home values and allow more buyers to use conventional financing rather than jumbo loans, which typically require larger down payments and stricter qualification criteria.

Given San Diego County's urban density, buyers should expect competitive market conditions with a diverse mix of single-family homes, condominiums, and multi-family properties. The county spans 116 ZIP codes, each with its own micro-market dynamics affecting pricing, inventory levels, and days on market. Exploring individual ZIP codes below can help identify neighborhoods that match specific budget and lifestyle preferences.