The median sales price for homes in Fairfax CA for Feb 13 to Apr 13 was $640,000. This represents an increase of 10.8%, or $62,500, compared to the prior quarter and an increase of 39.1% compared to the prior year. Sales prices have depreciated 12.4% over the last 5 years in Fairfax. The average listing price for Fairfax homes for sale on Trulia was $953,217 for the week ending May 08, which represents an increase of 2.3%, or $21,073, compared to the prior week and an increase of 44.3%, or $292,463, compared to the week ending Apr 17. Average price per square foot for Fairfax CA was $394, an increase of 12.9% compared to the same period last year.