The four-county region added residents at a slow pace between 2010 and 2012, with Asians and Hispanics accounting for most of the growth, according to new U.S. Census Bureau estimates released today.
About 2,196,000 residents lived in Sacramento, Placer, El Dorado and Yolo counties on July, 1 2012, up about 42,000, or 2 percent, from the same date two years prior.
Placer County continued to show the fastest growth. It was the only county in the region with a net gain in domestic migration -- about 9,000 more people came to Placer County from other parts of the nation than left it.
El Dorado, with an older population and relatively few migrants, saw its population decline by roughly 600 residents over the last two years.
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All of the growth in Sacramento County and Yolo County came from international migration and natural increase -- more births than deaths.
A large proportion of the young families in those two counties are Asian or Hispanic. The region's Asian population grew by 4.7 percent and its Hispanic population grew by 3.6 percent, compared to 0.2 percent growth for its white population.
Hispanics and Asians, as shown in the chart below, accounted for more than two-thirds of the population growth in the region between 2010 and 2012.