The California Association of Realtors just released its Housing Affordability Index (HAI) for the 2nd quarter of 2015. All Bay Area counties saw declines in their affordability index reading – which measures the percentage of households that can afford to buy the median priced single family dwelling (house) – and San Francisco is now only 2 percentage points above its all-time low of 8%, last reached in Q3 2007.

In this analysis, affordability is affected by 3 major factors: median house price, mortgage interest rates and household income. (Housing Affordability Index Methodology).

Affordability Percentage by Bay Area County, Q2 2015