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Coronavirus: California county tier levels and vaccinations as of April 27

As of Tuesday, April 27, the California Department of Public Health’s vaccine dashboard showed about  29.4 million doses have been shipped throughout the state (down from 32.7 million last week).

According to Bloomberg’s dashboard tracking vaccine distribution, 47.5% of California’s population has received at least one shot (up from 44.1% a week ago) and 29% of residents are fully vaccinated. California has the highest daily rate of doses administered in the country at 383,386 (down from 494,575 per day last week). The second-highest rate belongs to Texas with 192,552.

Los Angeles (7.2 million), San Diego (2.6 million) and Orange (2.4 million) counties have administered the most doses to date in California. About 99% of the data is recorded by the patient’s county of residence.

Here are the California county vaccination totals as of April 27:


Tier assignments as of April 27

On April 6, Gov. Gavin Newsom announced a plan to fully reopen California’s economy on June 15 if current COVID-19 trends hold and vaccination supplies continue to be strong. California would end its four-colored tier system at that point, but Newsom said California’s mask mandate wouldn’t be lifted anytime soon.

Until then, the state continues to make weekly adjustments to its tier system and, based on Tuesday’s update – changes take effect Wednesday – none of California’s 58 counties remain in the purple tier (considered widespread risk). One county had remained in the purple tier last week. There will be 17 counties in the red tier (substantial risk), down from 21 last week; 38 counties in the orange tier (moderate risk), up from 16 three weeks ago); and three in the yellow tier (minimal risk), the same as a week ago.

Counties are assigned to a tier based on metrics showing the speed and the spread of the virus in their borders.

The state’s progression in tiers since Sept. 22:

State metrics:

Sources:, California Department of Public Health, U.S. Census, U.S.D.A, California State Association of Counties

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Source: Orange County Register

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