OAKLAND (CBS SF) – Average home prices in all nine Bay Area counties were up last month compared with a year ago, according to research firm CoreLogic.

The largest increase was in San Mateo County where the median home price jumped from $843,000 to $960,000 or 13.9 percent, CoreLogic officials said.

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The second largest increase was in Alameda County where the median home price leapt from $580,000 to $650,000 or 12.1 percent, according to CoreLogic officials.

The median or average price among all nine Bay Area counties was up 6 percent to $649,000 last month, CoreLogic officials said.

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