Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
UPDATE
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
UPDATE
The White House announced that vaccines will be required for international travelers coming into the United States, with an effective date of November 8, 2021. For purposes of entry into the United States, vaccines accepted will include FDA approved or authorized and WHO Emergency Use Listing vaccines. More information is available here.
UPDATE
Travel requirements to enter the United States are changing, starting November 8, 2021. More information is available here.

COVID-19 by County

COVID-19 by County
Updated Aug. 11, 2022

What You Need to Know

  • COVID-19 Community Levels help individuals and communities decide which prevention actions to take based on the latest information.
  • Each level helps convey how much COVID-19 is impacting your community using data on hospitalizations and cases.
  • Using these data, communities are classified as low, medium, or high.
  • For each level, CDC recommends actions you can take to help you protect yourself and others from severe impacts of COVID-19.

Many people in the United States have some protection, or immunity, against COVID-19 due to vaccination, previous infection, or both. This immunity, combined with the availability of tests and treatments, has greatly reduced the risk of severe illness, hospitalization, and death from COVID-19 for many people.

At the same time, some people—such as those who are older, are immunocompromised, have certain disabilities, or have certain underlying health conditions—continue to be at higher risk for serious illness. Learn more about the factors that can affect your risk of getting very sick from COVID-19 to better understand how COVID-19 could affect you and others around you.

For Healthcare Facilities: Prevention actions in healthcare facilities, such as hospitals, rehabilitation centers, and nursing homes, are not linked to COVID-19 Community Levels.

Know Your COVID-19 Community Level

Take action to protect yourself and others from COVID-19 based on the COVID-19 Community Level in your area.

People may choose to wear a mask at any time. Masks are recommended in indoor public transportation settings and may be required in other places by local or state authorities.

Individual-Level Prevention Steps You Can Take Based on Your COVID-19 Community Level

Green, yellow, and orange squares representing all COVID-19 Community Levels
LOW, MEDIUM, AND HIGH

At all COVID-19 Community Levels:

Green, yellow, and orange squares representing all COVID-19 Community Levels
Yellow- and orange-colored rectangles indicating medium and high COVID-19 Community Levels
MEDIUM AND HIGH

When the COVID-19 Community Level is Medium or High:

Yellow- and orange-colored rectangles indicating medium and high COVID-19 Community Levels
Orange-colored rectangles indicating high COVID-19 Community Level
HIGH

When the COVID-19 Community Level is High:

  • Wear a high-quality mask or respirator.
  • If you are at high risk of getting very sick, consider avoiding non-essential indoor activities in public where you could be exposed.
Orange-colored rectangles indicating high COVID-19 Community Level
Science at CDC
Scientific evidence and studies behind specific COVID-19 guidance and recommendations

Science Brief: Community Levels and Making Public Health Recommendations

Community-Level Prevention Strategies

Green, yellow, and orange squares representing all COVID-19 Community Levels
LOW, MEDIUM, AND HIGH

At all COVID-19 Community Levels:

  • Promote equitable access to vaccination, testing, masks and respirators, treatment and prevention medications, community outreach, and support services.
  • Ensure access to testing, including through point-of-care and at-home tests for all people.
  • Maintain ventilation improvements.
  • Provide communications and messaging to encourage isolation among people who test positive.
Green, yellow, and orange squares representing all COVID-19 Community Levels
Yellow- and orange-colored rectangles indicating medium and high COVID-19 Community Levels
MEDIUM AND HIGH

When the COVID-19 Community Level is Medium or High:

  • Implement screening testing in high-risk settings where screening testing is recommended.
Yellow- and orange-colored rectangles indicating medium and high COVID-19 Community Levels
Orange-colored rectangles indicating high COVID-19 Community Level
HIGH

When the COVID-19 Community Level is High:

  • Implement healthcare surge support as needed.
Orange-colored rectangles indicating high COVID-19 Community Level