Select state and county to populate county-specific data:
This site provides an integrated, county view of key data for monitoring the COVID-19 pandemic in the United States. It allows for the exploration of standardized data across the country. The footnotes describe each data source and the methods used for calculating the metrics. For the most complete and up-to-date data for any particular county or state, visit the relevant health department website. Additional data and features are forthcoming.
Time Period: Mon Jul 19 2021 - Sun Jul 25 2021
Back to U.S. Map
- High
- Substantial
- Moderate
- Low
- No Data
Current 7-days is Mon Jul 19 2021 - Sun Jul 25 2021 for case rate and Sun Jul 18 2021 - Sat Jul 24 2021 for percent positivity. The percent change in counties at each level of transmission is the absolute change compared to the previous 7-day period.
| Level of Community Transmission | Number of U.S. Counties at this Level | Percent of U.S. Counties at this Level | Percentage Point Difference Since 7 Days Ago |
|---|---|---|---|
| High | 1495 | 46.43% | 17.11% |
| Substantial | 548 | 17.02% | 0% |
| Moderate | 876 | 27.2% | -9.38% |
| Low | 300 | 9.32% | -7.73% |
| Indicator - If the two indicators suggest different transmission levels, the higher level is selected | Low Transmission Blue | Moderate Transmission Yellow | Substantial Transmission Orange | High Transmission Red |
|---|---|---|---|---|
| Total new cases per 100,000 persons in the past 7 days | 0-9.99 | 10-49.99 | 50-99.99 | ≥100 |
| Percentage of NAATs1 that are positive during the past 7 days | 0-4.99% | 5-7.99% | 8-9.99% | ≥10.0% |
