The percentage of households that could afford to buy an entry-level home in California stood at 69 percent in the first quarter of 2009, compared with 46 percent (revised) for the same period a year ago, according to a C.A.R. report released last week. C.A.R.’s First-time Buyer Housing Affordability Index (FTB-HAI) measures the percentage of households that can afford to purchase an entry-level home in California. C.A.R. also reports first-time buyer indexes for regions and select counties within the state. The Index is the most fundamental measure of housing well-being for first-time buyers in the state.

The minimum household income needed to purchase an entry-level home at $213,040 in California in the first quarter of 2009 was $38,090, based on an adjustable interest rate of 4.96 percent and assuming a 10 percent down payment. First-time buyers typically purchase a home equal to 85 percent of the prevailing median price. The monthly payment including taxes and insurance was $1,270 for the first quarter of 2009.

At $38,090, the minimum qualifying income was 41 percent lower than a year earlier when households needed $65,030 to qualify for a loan on an entry-level home. Recent decreases in home prices and mortgage rates have brought affordability into better alignment with the income level of a typical California household, where the median household income is $61,030.

The First-time Buyer Housing Affordability Index also rose 7 percentage points in the first quarter of this year compared with the fourth quarter of 2008, due to a 14.1 percent decrease in the entry-level median home price.

At 83 percent, the High Desert region was the most affordable area in the state. The San Luis Obispo County region was the least affordable in the state at 49 percent, followed by the Orange County region at 56 percent.