Life expectancy in the Bay Area was over 82 years as of 2013, a six year improvement compared to 1990. Regional life expectancy increased almost every year on record since 1990. The most recent year to see a drop was 2005, around the time of a particularly severe flu season. Prior to that, life expectancy dipped in 1993 around the height the AIDS epidemic. Significant healthcare improvements for people living with HIV in the late 1990s had a substantial impact on health outcomes, particularly in San Francisco County where life expectancy jumped nearly six years between 1990 and 2000.
While San Francisco County saw exceptional improvement in life expectancy after 1990, the other eight Bay Area counties also saw life expectancy increases. There are, however, widening disparities between counties as life expectancy is increasing more slowly in Solano compared to the rest of the region in recent years. In 2000, the gap in life expectancy between Solano County and the regional average was 1.5 years. By 2013, that number had grown to 3.8 years.