Sonoma County, California — 2026 Loan Limits & Market Data

Sonoma County is a mid-sized county in California with a population of approximately 485,375 residents spread across 1,576 square miles. The county is a suburban area with a moderate population density of 308 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, Sonoma County has elevated 2026 conforming loan limits of $897,000 for a single-family home, higher than the national baseline of $832,750. FHA borrowers can access loans up to $897,000. 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.

Sonoma County's suburban and semi-rural character means buyers can find a range of property types, from newer subdivisions to established neighborhoods and larger-lot properties. The county includes 40 ZIP codes with varying market conditions. Reviewing specific ZIP codes can reveal differences in median prices, available inventory, and how quickly homes are selling across different parts of the county.